All the vulnerabilites related to Ivanti - Connect Secure
cve-2024-22053
Vulnerability from cvelistv5
Published
2024-04-04 19:45
Modified
2024-10-03 21:40
Severity ?
EPSS score ?
Summary
A heap overflow vulnerability in IPSec component of Ivanti Connect Secure (9.x
22.x) and Ivanti Policy Secure allows an unauthenticated malicious user to send specially crafted requests in-order-to crash the service thereby causing a DoS attack or in certain conditions read contents from memory.
Impacted products
| Vendor | Product | Version | |||||
|---|---|---|---|---|---|---|---|
| ▼ | Ivanti | Connect Secure |
Version: 22.1R6.2 ≤ Version: 22.2R4.2 ≤ Version: 22.3R1.2 ≤ Version: 22.4R1.2 ≤ Version: 22.4R2.4 ≤ Version: 22.5R1.3 ≤ Version: 22.5R2.4 ≤ Version: 22.6R2.3 ≤ Version: 9.1R14.6 ≤ Version: 9.1R15.4 ≤ Version: 9.1R16.4 ≤ Version: 9.1R17.4 ≤ Version: 9.1R18.5 ≤ |
||||
|
|||||||
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cve-2024-47905
Vulnerability from cvelistv5
Published
2024-11-12 15:56
Modified
2024-11-12 18:35
Severity ?
EPSS score ?
Summary
A stack-based buffer overflow in Ivanti Connect Secure before version 22.7R2.3 and Ivanti Policy Secure before version 22.7R1.2 allows a remote authenticated attacker with admin privileges to cause a denial of service.
References
Impacted products
| Vendor | Product | Version | |||||
|---|---|---|---|---|---|---|---|
| ▼ | Ivanti | Connect Secure |
Patch: 22.7R2.3 |
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cve-2024-39712
Vulnerability from cvelistv5
Published
2024-11-13 01:54
Modified
2024-12-01 18:25
Severity ?
EPSS score ?
Summary
Argument injection in Ivanti Connect Secure before version 22.7R2.1 and 9.1R18.7 and Ivanti Policy Secure before version 22.7R1.1 allows a remote authenticated attacker with admin privileges to achieve remote code execution.
References
Impacted products
| Vendor | Product | Version | |||||
|---|---|---|---|---|---|---|---|
| ▼ | Ivanti | Connect Secure |
Version: 22.7R2.1 < 22.7R2.1 Version: 9.1R18.7 < 9.1R18.7 |
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cve-2023-39340
Vulnerability from cvelistv5
Published
2023-12-16 01:49
Modified
2024-11-27 15:14
Severity ?
EPSS score ?
Summary
A vulnerability exists on all versions of Ivanti Connect Secure below 22.6R2 where an attacker can send a specific request which may lead to Denial of Service (DoS) of the appliance.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| ▼ | Ivanti | Connect Secure |
Version: 22.6.1 ≤ |
|
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cve-2024-47909
Vulnerability from cvelistv5
Published
2024-11-12 16:02
Modified
2024-11-19 17:10
Severity ?
EPSS score ?
Summary
A stack-based buffer overflow in Ivanti Connect Secure before version 22.7R2.3 and Ivanti Policy Secure before version 22.7R1.2 allows a remote authenticated attacker with admin privileges to cause a denial of service.
References
Impacted products
| Vendor | Product | Version | |||||
|---|---|---|---|---|---|---|---|
| ▼ | Ivanti | Connect Secure |
Patch: 22.7R2.3 |
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cve-2024-9844
Vulnerability from cvelistv5
Published
2024-12-10 18:46
Modified
2024-12-10 20:39
Severity ?
EPSS score ?
Summary
Insufficient server-side controls in Secure Application Manager of Ivanti Connect Secure before version 22.7R2.4 allows a remote authenticated attacker to bypass restrictions.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| ▼ | Ivanti | Connect Secure |
Patch: 22.7R2.4 |
|
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cve-2024-21894
Vulnerability from cvelistv5
Published
2024-04-04 22:16
Modified
2024-10-03 21:43
Severity ?
EPSS score ?
Summary
A heap overflow vulnerability in IPSec component of Ivanti Connect Secure (9.x, 22.x) and Ivanti Policy Secure allows an unauthenticated malicious user to send specially crafted requests in-order-to crash the service thereby causing a DoS attack. In certain conditions this may lead to execution of arbitrary code
Impacted products
| Vendor | Product | Version | |||||
|---|---|---|---|---|---|---|---|
| ▼ | Ivanti | Connect Secure |
Version: 22.1R6.2 ≤ Version: 22.2R4.2 ≤ Version: 22.3R1.2 ≤ Version: 22.4R1.2 ≤ Version: 22.4R2.4 ≤ Version: 22.5R1.3 ≤ Version: 22.5R2.4 ≤ Version: 22.6R2.3 ≤ Version: 9.1R14.6 ≤ Version: 9.1R15.4 ≤ Version: 9.1R16.4 ≤ Version: 9.1R17.4 ≤ Version: 9.1R18.5 ≤ |
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cve-2024-22052
Vulnerability from cvelistv5
Published
2024-04-04 19:45
Modified
2024-10-03 21:40
Severity ?
EPSS score ?
Summary
A null pointer dereference vulnerability in IPSec component of Ivanti Connect Secure (9.x, 22.x) and Ivanti Policy Secure allows an unauthenticated malicious user to send specially crafted requests in-order-to crash the service thereby causing a DoS attack
Impacted products
| Vendor | Product | Version | |||||
|---|---|---|---|---|---|---|---|
| ▼ | Ivanti | Connect Secure |
Version: 22.1R6.2 ≤ Version: 22.2R4.2 ≤ Version: 22.3R1.2 ≤ Version: 22.4R1.2 ≤ Version: 22.4R2.4 ≤ Version: 22.5R1.3 ≤ Version: 22.5R2.4 ≤ Version: 22.6R2.3 ≤ Version: 9.1R14.6 ≤ Version: 9.1R15.4 ≤ Version: 9.1R16.4 ≤ Version: 9.1R17.4 ≤ Version: 9.1R18.5 ≤ |
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cve-2024-11634
Vulnerability from cvelistv5
Published
2024-12-10 18:48
Modified
2024-12-10 20:26
Severity ?
EPSS score ?
Summary
Command injection in Ivanti Connect Secure before version 22.7R2.3 and Ivanti Policy Secure before version 22.7R1.2 allows a remote authenticated attacker with admin privileges to achieve remote code execution. (Not applicable to 9.1Rx)
References
Impacted products
| Vendor | Product | Version | |||||
|---|---|---|---|---|---|---|---|
| ▼ | Ivanti | Connect Secure |
Patch: 22.7R2.3 |
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cve-2024-47906
Vulnerability from cvelistv5
Published
2024-11-12 15:59
Modified
2024-11-22 16:31
Severity ?
EPSS score ?
Summary
Excessive binary privileges in Ivanti Connect Secure before version 22.7R2.3 (Not Applicable to 9.1Rx) and Ivanti Policy Secure before version 22.7R1.2 (Not Applicable to 9.1Rx) allows a local authenticated attacker to escalate privileges.
References
Impacted products
| Vendor | Product | Version | |||||
|---|---|---|---|---|---|---|---|
| ▼ | Ivanti | Connect Secure |
Version: 22.4R2 < Patch: 22.7R2.3 |
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cve-2024-11004
Vulnerability from cvelistv5
Published
2024-11-12 16:09
Modified
2024-11-21 16:45
Severity ?
EPSS score ?
Summary
Reflected XSS in Ivanti Connect Secure before version 22.7R2.1 and Ivanti Policy Secure before version 22.7R1.1 allows a remote unauthenticated attacker to obtain admin privileges. User interaction is required.
References
Impacted products
| Vendor | Product | Version | |||||
|---|---|---|---|---|---|---|---|
| ▼ | Ivanti | Connect Secure |
Patch: 22.7R2.1 |
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cve-2023-41719
Vulnerability from cvelistv5
Published
2023-12-14 01:56
Modified
2024-08-02 19:01
Severity ?
EPSS score ?
Summary
A vulnerability exists on all versions of Ivanti Connect Secure below 22.6R2 where an attacker impersonating an administrator may craft a specific web request which may lead to remote code execution.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| ▼ | Ivanti | Connect Secure |
Version: 22.6.1 ≤ |
|
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cve-2024-38649
Vulnerability from cvelistv5
Published
2024-11-13 01:54
Modified
2024-11-23 21:06
Severity ?
EPSS score ?
Summary
An out-of-bounds write in IPsec of Ivanti Connect Secure before version 22.7R2.1(Not Applicable to 9.1Rx) allows a remote unauthenticated attacker to cause a denial of service.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| ▼ | Ivanti | Connect Secure |
Version: 22.7R2.1 < 22.7R2.1 |
|
|
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cve-2024-37400
Vulnerability from cvelistv5
Published
2024-11-13 01:54
Modified
2024-11-13 16:57
Severity ?
EPSS score ?
Summary
An out of bounds read in Ivanti Connect Secure before version 22.7R2.3 allows a remote unauthenticated attacker to trigger an infinite loop, causing a denial of service.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| ▼ | Ivanti | Connect Secure |
Version: 22.7R2.3 < 22.7R2.3 |
|
|
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cve-2024-9420
Vulnerability from cvelistv5
Published
2024-11-12 15:57
Modified
2024-11-27 20:21
Severity ?
EPSS score ?
Summary
A use-after-free in Ivanti Connect Secure before version 22.7R2.3 and 9.1R18.9
and Ivanti Policy Secure before version 22.7R1.2 allows a remote authenticated attacker to achieve remote code execution
References
Impacted products
| Vendor | Product | Version | |||||
|---|---|---|---|---|---|---|---|
| ▼ | Ivanti | Connect Secure |
Patch: 22.7R2.3 |
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cve-2023-41720
Vulnerability from cvelistv5
Published
2023-12-14 01:56
Modified
2024-08-02 19:01
Severity ?
EPSS score ?
Summary
A vulnerability exists on all versions of Ivanti Connect Secure below 22.6R2 where an attacker with a foothold on an Ivanti Connect Secure (ICS) appliance can escalate their privileges by exploiting a vulnerable installed application. This vulnerability allows the attacker to gain elevated execution privileges on the affected system.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| ▼ | Ivanti | Connect Secure |
Version: 22.6.1 ≤ |
|
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cve-2024-22023
Vulnerability from cvelistv5
Published
2024-04-04 19:45
Modified
2024-10-03 21:38
Severity ?
EPSS score ?
Summary
An XML entity expansion or XEE vulnerability in SAML component of Ivanti Connect Secure (9.x, 22.x) and Ivanti Policy Secure allows an unauthenticated attacker to send specially crafted XML requests in-order-to temporarily cause resource exhaustion thereby resulting in a limited-time DoS.
Impacted products
| Vendor | Product | Version | |||||
|---|---|---|---|---|---|---|---|
| ▼ | Ivanti | Connect Secure |
Version: 22.1R6.2 ≤ Version: 22.2R4.2 ≤ Version: 22.3R1.2 ≤ Version: 22.4R1.2 ≤ Version: 22.4R2.4 ≤ Version: 22.5R1.3 ≤ Version: 22.5R2.4 ≤ Version: 22.6R2.3 ≤ Version: 9.1R14.6 ≤ Version: 9.1R15.4 ≤ Version: 9.1R16.4 ≤ Version: 9.1R17.4 ≤ Version: 9.1R18.5 ≤ |
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cve-2024-39710
Vulnerability from cvelistv5
Published
2024-11-13 01:54
Modified
2024-12-01 18:25
Severity ?
EPSS score ?
Summary
Argument injection in Ivanti Connect Secure before version 22.7R2.1 and 9.1R18.7 and Ivanti Policy Secure before version 22.7R1.1 allows a remote authenticated attacker with admin privileges to achieve remote code execution.
References
Impacted products
| Vendor | Product | Version | |||||
|---|---|---|---|---|---|---|---|
| ▼ | Ivanti | Connect Secure |
Version: 22.7R2.1 < 22.7R2.1 Version: 9.1R18.7 < 9.1R18.7 |
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cve-2024-11006
Vulnerability from cvelistv5
Published
2024-11-12 16:06
Modified
2024-11-22 16:32
Severity ?
EPSS score ?
Summary
Command injection in Ivanti Connect Secure before version 22.7R2.1 (Not Applicable to 9.1Rx) and Ivanti Policy Secure before version 22.7R1.1 (Not Applicable to 9.1Rx) allows a remote authenticated attacker with admin privileges to achieve remote code execution.
References
Impacted products
| Vendor | Product | Version | |||||
|---|---|---|---|---|---|---|---|
| ▼ | Ivanti | Connect Secure |
Patch: 22.7R2.1 |
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cve-2023-38551
Vulnerability from cvelistv5
Published
2024-05-31 17:38
Modified
2024-08-02 17:46
Severity ?
EPSS score ?
Summary
A CRLF Injection vulnerability in Ivanti Connect Secure (9.x, 22.x) allows an authenticated high-privileged user to inject malicious code on a victim’s browser, thereby leading to cross-site scripting attack.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| ▼ | Ivanti | Connect Secure |
Version: 22.7R2 ≤ Version: 22.5R2.2 ≤ Version: 9.1R18.6 ≤ |
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cve-2024-39711
Vulnerability from cvelistv5
Published
2024-11-13 01:54
Modified
2024-12-01 18:25
Severity ?
EPSS score ?
Summary
Argument injection in Ivanti Connect Secure before version 22.7R2.1 and 9.1R18.7 and Ivanti Policy Secure before version 22.7R1.1 allows a remote authenticated attacker with admin privileges to achieve remote code execution.
References
Impacted products
| Vendor | Product | Version | |||||
|---|---|---|---|---|---|---|---|
| ▼ | Ivanti | Connect Secure |
Version: 22.7R2.1 < 22.7R2.1 Version: 9.1R18.7 < 9.1R18.7 |
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cve-2024-38656
Vulnerability from cvelistv5
Published
2024-11-13 01:54
Modified
2024-12-01 18:25
Severity ?
EPSS score ?
Summary
Argument injection in Ivanti Connect Secure before version 22.7R2.2 and 9.1R18.9 and Ivanti Policy Secure before version 22.7R1.2 allows a remote authenticated attacker with admin privileges to achieve remote code execution.
References
Impacted products
| Vendor | Product | Version | |||||
|---|---|---|---|---|---|---|---|
| ▼ | Ivanti | Connect Secure |
Version: 22.7R2.2 < 22.7R2.2 Version: 9.1R18.9 < 9.1R18.9 |
||||
|
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cve-2024-37404
Vulnerability from cvelistv5
Published
2024-10-18 23:06
Modified
2024-10-21 17:22
Severity ?
EPSS score ?
Summary
Improper Input Validation in the admin portal of Ivanti Connect Secure before 22.7R2.1 and 9.1R18.9, or Ivanti Policy Secure before 22.7R1.1 allows a remote authenticated attacker to achieve remote code execution.
References
Impacted products
| Vendor | Product | Version | |||||
|---|---|---|---|---|---|---|---|
| ▼ | Ivanti | Connect Secure |
Version: 22.7R2.1 < 22.7R2.1 Version: 9.1R18.9 < 9.1R18.9 |
||||
|
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cve-2024-8495
Vulnerability from cvelistv5
Published
2024-11-12 16:04
Modified
2024-11-19 17:11
Severity ?
EPSS score ?
Summary
A null pointer dereference in Ivanti Connect Secure before version 22.7R2.1 and Ivanti Policy Secure before version 22.7R1.1 allows a remote unauthenticated attacker to cause a denial of service.
References
Impacted products
| Vendor | Product | Version | |||||
|---|---|---|---|---|---|---|---|
| ▼ | Ivanti | Connect Secure |
Patch: 22.7R2.1 |
||||
|
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cve-2024-11007
Vulnerability from cvelistv5
Published
2024-11-12 16:05
Modified
2024-11-22 16:32
Severity ?
EPSS score ?
Summary
Command injection in Ivanti Connect Secure before version 22.7R2.1 (Not Applicable to 9.1Rx) and Ivanti Policy Secure before version 22.7R1.1 (Not Applicable to 9.1Rx) allows a remote authenticated attacker with admin privileges to achieve remote code execution.
References
Impacted products
| Vendor | Product | Version | |||||
|---|---|---|---|---|---|---|---|
| ▼ | Ivanti | Connect Secure |
Patch: 22.7R2.1 |
||||
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cve-2024-29205
Vulnerability from cvelistv5
Published
2024-04-24 23:12
Modified
2024-10-03 21:30
Severity ?
EPSS score ?
Summary
An Improper Check for Unusual or Exceptional Conditions vulnerability in the web component of Ivanti Connect Secure (9.x, 22.x) and Ivanti Policy Secure (9.x, 22.x) allows a remote unauthenticated attacker to send specially crafted requests in-order-to cause service disruptions.
Impacted products
| Vendor | Product | Version | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| ▼ | Ivanti | Connect Secure |
Version: 9.1R18.5 ≤ Version: 22.6R2.3 ≤ Version: 9.1R17.4 ≤ Version: 22.2R3 ≤ Version: 22.5R2.4 ≤ Version: 9.1R14.6 ≤ Version: 9.1R16.4 ≤ Version: 9.1R15.4 ≤ Version: 22.2R4.2 ≤ Version: 22.4R1.2 ≤ Version: 22.6R1.2 ≤ Version: 22.1R6.2 ≤ Version: 22.3R1.2 ≤ |
||||||||
|
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cve-2024-37401
Vulnerability from cvelistv5
Published
2024-12-11 18:52
Modified
2024-12-11 18:52
Severity ?
EPSS score ?
Summary
An out-of-bounds read in IPsec of Ivanti Connect Secure before version 22.7R2.1 allows a remote unauthenticated attacker to cause a denial of service.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| ▼ | Ivanti | Connect Secure |
Version: 22.7R2.1 < 22.7R2.1 |
|
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cve-2024-11633
Vulnerability from cvelistv5
Published
2024-12-10 18:47
Modified
2024-12-10 20:37
Severity ?
EPSS score ?
Summary
Argument injection in Ivanti Connect Secure before version 22.7R2.4 allows a remote authenticated attacker with admin privileges to achieve remote code execution
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| ▼ | Ivanti | Connect Secure |
Patch: 22.7R2.4 |
|
|
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cve-2024-47907
Vulnerability from cvelistv5
Published
2024-11-12 16:00
Modified
2024-11-12 20:02
Severity ?
EPSS score ?
Summary
A stack-based buffer overflow in IPsec of Ivanti Connect Secure before version 22.7R2.3 allows a remote unauthenticated attacker to cause a denial of service.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| ▼ | Ivanti | Connect Secure |
Patch: 22.7R2.3 |
|
|
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cve-2024-38655
Vulnerability from cvelistv5
Published
2024-11-13 01:54
Modified
2024-11-23 21:06
Severity ?
EPSS score ?
Summary
Argument injection in Ivanti Connect Secure before version 22.7R2.1 and 9.1R18.9 and Ivanti Policy Secure before version 22.7R1.1 and 9.1R18.9 allows a remote authenticated attacker with admin privileges to achieve remote code execution.
References
Impacted products
| Vendor | Product | Version | |||||
|---|---|---|---|---|---|---|---|
| ▼ | Ivanti | Connect Secure |
Version: 22.7R2.1 < 22.7R2.1 Version: 9.1R18.9 < 9.1R18.9 |
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cve-2024-39709
Vulnerability from cvelistv5
Published
2024-11-13 01:54
Modified
2024-11-23 21:06
Severity ?
EPSS score ?
Summary
Incorrect file permissions in Ivanti Connect Secure before version 22.6R2 (Not Applicable to 9.1Rx) and Ivanti Policy Secure before version 22.7R1 (Not Applicable to 9.1Rx) allow a local authenticated attacker to escalate their privileges.
References
Impacted products
| Vendor | Product | Version | |||||
|---|---|---|---|---|---|---|---|
| ▼ | Ivanti | Connect Secure |
Version: 22.6R2 < 22.6R2 |
||||
|
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cve-2024-37377
Vulnerability from cvelistv5
Published
2024-12-11 18:52
Modified
2024-12-11 18:52
Severity ?
EPSS score ?
Summary
A heap-based buffer overflow in IPsec of Ivanti Connect Secure before version 22.7R2.3 allows a remote unauthenticated attacker to cause a denial of service.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| ▼ | Ivanti | Connect Secure |
Version: 22.7R2.3 < 22.7R2.3 |
|
|
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cve-2024-11005
Vulnerability from cvelistv5
Published
2024-11-12 16:07
Modified
2024-11-22 16:33
Severity ?
EPSS score ?
Summary
Command injection in Ivanti Connect Secure before version 22.7R2.1 (Not Applicable to 9.1Rx) and Ivanti Policy Secure before version 22.7R1.1 (Not Applicable to 9.1Rx) allows a remote authenticated attacker with admin privileges to achieve remote code execution.
References
Impacted products
| Vendor | Product | Version | |||||
|---|---|---|---|---|---|---|---|
| ▼ | Ivanti | Connect Secure |
Patch: 22.7R2.1 |
||||
|
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var-201906-1176
Vulnerability from variot
Jonathan Looney discovered that the TCP retransmission queue implementation in tcp_fragment in the Linux kernel could be fragmented when handling certain TCP Selective Acknowledgment (SACK) sequences. A remote attacker could use this to cause a denial of service. This has been fixed in stable kernel releases 4.4.182, 4.9.182, 4.14.127, 4.19.52, 5.1.11, and is fixed in commit f070ef2ac66716357066b683fb0baf55f8191a2e. This vulnerability stems from improper management of system resources (such as memory, disk space, files, etc.) by network systems or products. A successful exploit could cause the targeted system to crash, resulting in a DoS condition. Proof-of-concept (PoC) code that demonstrates an exploit of this vulnerability is publicly available. Kernel.org has confirmed the vulnerability and released software updates. 7.3) - noarch, x86_64
Bug Fix(es):
-
THP: Race between MADV_DONTNEED and NUMA hinting node migration code (BZ#1698104)
-
[RHEL7] md_clear flag missing from /proc/cpuinfo on late microcode update (BZ#1712990)
-
[RHEL7] MDS mitigations are not enabled after double microcode update (BZ#1712995)
-
WARNING: CPU: 0 PID: 0 at kernel/jump_label.c:90 __static_key_slow_dec+0xa6/0xb0 (BZ#1713001)
-
========================================================================== Kernel Live Patch Security Notice 0058-1 October 22, 2019
linux vulnerability
A security issue affects these releases of Ubuntu:
| Series | Base kernel | Arch | flavors | |------------------+--------------+----------+------------------| | Ubuntu 18.04 LTS | 4.15.0 | amd64 | aws | | Ubuntu 18.04 LTS | 4.15.0 | amd64 | generic | | Ubuntu 18.04 LTS | 4.15.0 | amd64 | lowlatency | | Ubuntu 18.04 LTS | 4.15.0 | amd64 | oem | | Ubuntu 18.04 LTS | 5.0.0 | amd64 | azure | | Ubuntu 14.04 LTS | 4.4.0 | amd64 | generic | | Ubuntu 14.04 LTS | 4.4.0 | amd64 | lowlatency | | Ubuntu 16.04 LTS | 4.4.0 | amd64 | aws | | Ubuntu 16.04 LTS | 4.4.0 | amd64 | generic | | Ubuntu 16.04 LTS | 4.4.0 | amd64 | lowlatency | | Ubuntu 16.04 LTS | 4.15.0 | amd64 | azure | | Ubuntu 16.04 LTS | 4.15.0 | amd64 | generic | | Ubuntu 16.04 LTS | 4.15.0 | amd64 | lowlatency |
Summary:
Several security issues were fixed in the kernel.
Software Description: - linux: Linux kernel
Details:
It was discovered that a race condition existed in the GFS2 file system in the Linux kernel. (CVE-2016-10905)
It was discovered that a use-after-free error existed in the block layer subsystem of the Linux kernel when certain failure conditions occurred. (CVE-2018-20856)
It was discovered that the USB gadget Midi driver in the Linux kernel contained a double-free vulnerability when handling certain error conditions. (CVE-2018-20961)
It was discovered that the XFS file system in the Linux kernel did not properly handle mount failures in some situations. (CVE-2018-20976)
It was discovered that the RSI 91x Wi-Fi driver in the Linux kernel did not did not handle detach operations correctly, leading to a use-after-free vulnerability. (CVE-2018-21008)
It was discovered that the Intel Wi-Fi device driver in the Linux kernel did not properly validate certain Tunneled Direct Link Setup (TDLS). (CVE-2019-0136)
It was discovered that the Linux kernel on ARM processors allowed a tracing process to modify a syscall after a seccomp decision had been made on that syscall. (CVE-2019-2054)
It was discovered that an integer overflow existed in the Binder implementation of the Linux kernel, leading to a buffer overflow. (CVE-2019-2181)
It was discovered that the Marvell Wireless LAN device driver in the Linux kernel did not properly validate the BSS descriptor. (CVE-2019-3846)
It was discovered that a heap buffer overflow existed in the Marvell Wireless LAN device driver for the Linux kernel. (CVE-2019-10126)
It was discovered that the Bluetooth UART implementation in the Linux kernel did not properly check for missing tty operations. (CVE-2019-11478)
It was discovered that the ext4 file system implementation in the Linux kernel did not properly zero out memory in some situations. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2019-11833)
It was discovered that the PowerPC dlpar implementation in the Linux kernel did not properly check for allocation errors in some situations. (CVE-2019-12614)
It was discovered that the floppy driver in the Linux kernel did not properly validate meta data, leading to a buffer overread. (CVE-2019-14283)
It was discovered that the floppy driver in the Linux kernel did not properly validate ioctl() calls, leading to a division-by-zero. (CVE-2019-14284)
Wen Huang discovered that the Marvell Wi-Fi device driver in the Linux kernel did not properly perform bounds checking, leading to a heap overflow. (CVE-2019-14814)
Wen Huang discovered that the Marvell Wi-Fi device driver in the Linux kernel did not properly perform bounds checking, leading to a heap overflow. (CVE-2019-14815)
Wen Huang discovered that the Marvell Wi-Fi device driver in the Linux kernel did not properly perform bounds checking, leading to a heap overflow. (CVE-2019-14816)
Matt Delco discovered that the KVM hypervisor implementation in the Linux kernel did not properly perform bounds checking when handling coalesced MMIO write operations. (CVE-2019-14821)
Peter Pi discovered a buffer overflow in the virtio network backend (vhost_net) implementation in the Linux kernel. (CVE-2019-14835)
Update instructions:
The problem can be corrected by updating your livepatches to the following versions:
| Kernel | Version | flavors | |--------------------------+----------+--------------------------| | 4.4.0-148.174 | 58.1 | lowlatency, generic | | 4.4.0-148.174~14.04.1 | 58.1 | lowlatency, generic | | 4.4.0-150.176 | 58.1 | generic, lowlatency | | 4.4.0-150.176~14.04.1 | 58.1 | lowlatency, generic | | 4.4.0-151.178 | 58.1 | lowlatency, generic | | 4.4.0-151.178~14.04.1 | 58.1 | generic, lowlatency | | 4.4.0-154.181 | 58.1 | lowlatency, generic | | 4.4.0-154.181~14.04.1 | 58.1 | generic, lowlatency | | 4.4.0-157.185 | 58.1 | lowlatency, generic | | 4.4.0-157.185~14.04.1 | 58.1 | generic, lowlatency | | 4.4.0-159.187 | 58.1 | lowlatency, generic | | 4.4.0-159.187~14.04.1 | 58.1 | generic, lowlatency | | 4.4.0-161.189 | 58.1 | lowlatency, generic | | 4.4.0-161.189~14.04.1 | 58.1 | lowlatency, generic | | 4.4.0-164.192 | 58.1 | lowlatency, generic | | 4.4.0-164.192~14.04.1 | 58.1 | lowlatency, generic | | 4.4.0-165.193 | 58.1 | generic, lowlatency | | 4.4.0-1083.93 | 58.1 | aws | | 4.4.0-1084.94 | 58.1 | aws | | 4.4.0-1085.96 | 58.1 | aws | | 4.4.0-1087.98 | 58.1 | aws | | 4.4.0-1088.99 | 58.1 | aws | | 4.4.0-1090.101 | 58.1 | aws | | 4.4.0-1092.103 | 58.1 | aws | | 4.4.0-1094.105 | 58.1 | aws | | 4.15.0-50.54 | 58.1 | generic, lowlatency | | 4.15.0-50.54~16.04.1 | 58.1 | generic, lowlatency | | 4.15.0-51.55 | 58.1 | generic, lowlatency | | 4.15.0-51.55~16.04.1 | 58.1 | generic, lowlatency | | 4.15.0-52.56 | 58.1 | lowlatency, generic | | 4.15.0-52.56~16.04.1 | 58.1 | generic, lowlatency | | 4.15.0-54.58 | 58.1 | generic, lowlatency | | 4.15.0-54.58~16.04.1 | 58.1 | generic, lowlatency | | 4.15.0-55.60 | 58.1 | generic, lowlatency | | 4.15.0-58.64 | 58.1 | generic, lowlatency | | 4.15.0-58.64~16.04.1 | 58.1 | lowlatency, generic | | 4.15.0-60.67 | 58.1 | lowlatency, generic | | 4.15.0-60.67~16.04.1 | 58.1 | generic, lowlatency | | 4.15.0-62.69 | 58.1 | generic, lowlatency | | 4.15.0-62.69~16.04.1 | 58.1 | lowlatency, generic | | 4.15.0-64.73 | 58.1 | generic, lowlatency | | 4.15.0-64.73~16.04.1 | 58.1 | lowlatency, generic | | 4.15.0-65.74 | 58.1 | lowlatency, generic | | 4.15.0-1038.43 | 58.1 | oem | | 4.15.0-1039.41 | 58.1 | aws | | 4.15.0-1039.44 | 58.1 | oem | | 4.15.0-1040.42 | 58.1 | aws | | 4.15.0-1041.43 | 58.1 | aws | | 4.15.0-1043.45 | 58.1 | aws | | 4.15.0-1043.48 | 58.1 | oem | | 4.15.0-1044.46 | 58.1 | aws | | 4.15.0-1045.47 | 58.1 | aws | | 4.15.0-1045.50 | 58.1 | oem | | 4.15.0-1047.49 | 58.1 | aws | | 4.15.0-1047.51 | 58.1 | azure | | 4.15.0-1048.50 | 58.1 | aws | | 4.15.0-1049.54 | 58.1 | azure | | 4.15.0-1050.52 | 58.1 | aws | | 4.15.0-1050.55 | 58.1 | azure | | 4.15.0-1050.57 | 58.1 | oem | | 4.15.0-1051.53 | 58.1 | aws | | 4.15.0-1051.56 | 58.1 | azure | | 4.15.0-1052.57 | 58.1 | azure | | 4.15.0-1055.60 | 58.1 | azure | | 4.15.0-1056.61 | 58.1 | azure | | 4.15.0-1056.65 | 58.1 | oem | | 4.15.0-1057.62 | 58.1 | azure | | 4.15.0-1057.66 | 58.1 | oem | | 4.15.0-1059.64 | 58.1 | azure | | 5.0.0-1014.14~18.04.1 | 58.1 | azure | | 5.0.0-1016.17~18.04.1 | 58.1 | azure | | 5.0.0-1018.19~18.04.1 | 58.1 | azure | | 5.0.0-1020.21~18.04.1 | 58.1 | azure |
Support Information:
Kernels older than the levels listed below do not receive livepatch updates. Please upgrade your kernel as soon as possible.
| Series | Version | Flavors | |------------------+------------------+--------------------------| | Ubuntu 18.04 LTS | 4.15.0-1039 | aws | | Ubuntu 16.04 LTS | 4.4.0-1083 | aws | | Ubuntu 18.04 LTS | 5.0.0-1000 | azure | | Ubuntu 16.04 LTS | 4.15.0-1047 | azure | | Ubuntu 18.04 LTS | 4.15.0-50 | generic lowlatency | | Ubuntu 16.04 LTS | 4.15.0-50 | generic lowlatency | | Ubuntu 14.04 LTS | 4.4.0-148 | generic lowlatency | | Ubuntu 18.04 LTS | 4.15.0-1038 | oem | | Ubuntu 16.04 LTS | 4.4.0-148 | generic lowlatency |
References: CVE-2016-10905, CVE-2018-20856, CVE-2018-20961, CVE-2018-20976, CVE-2018-21008, CVE-2019-0136, CVE-2019-2054, CVE-2019-2181, CVE-2019-3846, CVE-2019-10126, CVE-2019-10207, CVE-2019-11477, CVE-2019-11478, CVE-2019-11833, CVE-2019-12614, CVE-2019-14283, CVE-2019-14284, CVE-2019-14814, CVE-2019-14815, CVE-2019-14816, CVE-2019-14821, CVE-2019-14835
-- ubuntu-security-announce mailing list ubuntu-security-announce@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-security-announce . -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256
====================================================================
Red Hat Security Advisory
Synopsis: Important: kernel security update Advisory ID: RHSA-2019:1481-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2019:1481 Issue date: 2019-06-17 CVE Names: CVE-2019-11477 CVE-2019-11478 CVE-2019-11479 ==================================================================== 1. Summary:
An update for kernel is now available for Red Hat Enterprise Linux 7.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
- Relevant releases/architectures:
Red Hat Enterprise Linux Client (v. 7) - noarch, x86_64 Red Hat Enterprise Linux Client Optional (v. 7) - x86_64 Red Hat Enterprise Linux ComputeNode (v. 7) - noarch, x86_64 Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64 Red Hat Enterprise Linux Server (v. 7) - noarch, ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, ppc64le, x86_64 Red Hat Enterprise Linux Workstation (v. 7) - noarch, x86_64 Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64
-
While processing SACK segments, the Linux kernel's socket buffer (SKB) data structure becomes fragmented. Each fragment is about TCP maximum segment size (MSS) bytes. To efficiently process SACK blocks, the Linux kernel merges multiple fragmented SKBs into one, potentially overflowing the variable holding the number of segments. A remote attacker could use this flaw to crash the Linux kernel by sending a crafted sequence of SACK segments on a TCP connection with small value of TCP MSS, resulting in a denial of service (DoS). (CVE-2019-11477)
-
Kernel: tcp: excessive resource consumption while processing SACK blocks allows remote denial of service (CVE-2019-11478)
-
Kernel: tcp: excessive resource consumption for TCP connections with low MSS allows remote denial of service (CVE-2019-11479)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
- Solution:
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
The system must be rebooted for this update to take effect.
- Bugs fixed (https://bugzilla.redhat.com/):
1719123 - CVE-2019-11477 Kernel: tcp: integer overflow while processing SACK blocks allows remote denial of service 1719128 - CVE-2019-11478 Kernel: tcp: excessive resource consumption while processing SACK blocks allows remote denial of service 1719129 - CVE-2019-11479 Kernel: tcp: excessive resource consumption for TCP connections with low MSS allows remote denial of service
- Package List:
Red Hat Enterprise Linux Client (v. 7):
Source: kernel-3.10.0-957.21.3.el7.src.rpm
noarch: kernel-abi-whitelists-3.10.0-957.21.3.el7.noarch.rpm kernel-doc-3.10.0-957.21.3.el7.noarch.rpm
x86_64: bpftool-3.10.0-957.21.3.el7.x86_64.rpm kernel-3.10.0-957.21.3.el7.x86_64.rpm kernel-debug-3.10.0-957.21.3.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm kernel-debug-devel-3.10.0-957.21.3.el7.x86_64.rpm kernel-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-957.21.3.el7.x86_64.rpm kernel-devel-3.10.0-957.21.3.el7.x86_64.rpm kernel-headers-3.10.0-957.21.3.el7.x86_64.rpm kernel-tools-3.10.0-957.21.3.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm kernel-tools-libs-3.10.0-957.21.3.el7.x86_64.rpm perf-3.10.0-957.21.3.el7.x86_64.rpm perf-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm python-perf-3.10.0-957.21.3.el7.x86_64.rpm python-perf-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
x86_64: kernel-debug-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm kernel-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-957.21.3.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-957.21.3.el7.x86_64.rpm perf-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm python-perf-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm
Red Hat Enterprise Linux ComputeNode (v. 7):
Source: kernel-3.10.0-957.21.3.el7.src.rpm
noarch: kernel-abi-whitelists-3.10.0-957.21.3.el7.noarch.rpm kernel-doc-3.10.0-957.21.3.el7.noarch.rpm
x86_64: bpftool-3.10.0-957.21.3.el7.x86_64.rpm kernel-3.10.0-957.21.3.el7.x86_64.rpm kernel-debug-3.10.0-957.21.3.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm kernel-debug-devel-3.10.0-957.21.3.el7.x86_64.rpm kernel-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-957.21.3.el7.x86_64.rpm kernel-devel-3.10.0-957.21.3.el7.x86_64.rpm kernel-headers-3.10.0-957.21.3.el7.x86_64.rpm kernel-tools-3.10.0-957.21.3.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm kernel-tools-libs-3.10.0-957.21.3.el7.x86_64.rpm perf-3.10.0-957.21.3.el7.x86_64.rpm perf-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm python-perf-3.10.0-957.21.3.el7.x86_64.rpm python-perf-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional (v. 7):
x86_64: kernel-debug-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm kernel-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-957.21.3.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-957.21.3.el7.x86_64.rpm perf-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm python-perf-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm
Red Hat Enterprise Linux Server (v. 7):
Source: kernel-3.10.0-957.21.3.el7.src.rpm
noarch: kernel-abi-whitelists-3.10.0-957.21.3.el7.noarch.rpm kernel-doc-3.10.0-957.21.3.el7.noarch.rpm
ppc64: kernel-3.10.0-957.21.3.el7.ppc64.rpm kernel-bootwrapper-3.10.0-957.21.3.el7.ppc64.rpm kernel-debug-3.10.0-957.21.3.el7.ppc64.rpm kernel-debug-debuginfo-3.10.0-957.21.3.el7.ppc64.rpm kernel-debug-devel-3.10.0-957.21.3.el7.ppc64.rpm kernel-debuginfo-3.10.0-957.21.3.el7.ppc64.rpm kernel-debuginfo-common-ppc64-3.10.0-957.21.3.el7.ppc64.rpm kernel-devel-3.10.0-957.21.3.el7.ppc64.rpm kernel-headers-3.10.0-957.21.3.el7.ppc64.rpm kernel-tools-3.10.0-957.21.3.el7.ppc64.rpm kernel-tools-debuginfo-3.10.0-957.21.3.el7.ppc64.rpm kernel-tools-libs-3.10.0-957.21.3.el7.ppc64.rpm perf-3.10.0-957.21.3.el7.ppc64.rpm perf-debuginfo-3.10.0-957.21.3.el7.ppc64.rpm python-perf-3.10.0-957.21.3.el7.ppc64.rpm python-perf-debuginfo-3.10.0-957.21.3.el7.ppc64.rpm
ppc64le: kernel-3.10.0-957.21.3.el7.ppc64le.rpm kernel-bootwrapper-3.10.0-957.21.3.el7.ppc64le.rpm kernel-debug-3.10.0-957.21.3.el7.ppc64le.rpm kernel-debug-debuginfo-3.10.0-957.21.3.el7.ppc64le.rpm kernel-debuginfo-3.10.0-957.21.3.el7.ppc64le.rpm kernel-debuginfo-common-ppc64le-3.10.0-957.21.3.el7.ppc64le.rpm kernel-devel-3.10.0-957.21.3.el7.ppc64le.rpm kernel-headers-3.10.0-957.21.3.el7.ppc64le.rpm kernel-tools-3.10.0-957.21.3.el7.ppc64le.rpm kernel-tools-debuginfo-3.10.0-957.21.3.el7.ppc64le.rpm kernel-tools-libs-3.10.0-957.21.3.el7.ppc64le.rpm perf-3.10.0-957.21.3.el7.ppc64le.rpm perf-debuginfo-3.10.0-957.21.3.el7.ppc64le.rpm python-perf-3.10.0-957.21.3.el7.ppc64le.rpm python-perf-debuginfo-3.10.0-957.21.3.el7.ppc64le.rpm
s390x: kernel-3.10.0-957.21.3.el7.s390x.rpm kernel-debug-3.10.0-957.21.3.el7.s390x.rpm kernel-debug-debuginfo-3.10.0-957.21.3.el7.s390x.rpm kernel-debug-devel-3.10.0-957.21.3.el7.s390x.rpm kernel-debuginfo-3.10.0-957.21.3.el7.s390x.rpm kernel-debuginfo-common-s390x-3.10.0-957.21.3.el7.s390x.rpm kernel-devel-3.10.0-957.21.3.el7.s390x.rpm kernel-headers-3.10.0-957.21.3.el7.s390x.rpm kernel-kdump-3.10.0-957.21.3.el7.s390x.rpm kernel-kdump-debuginfo-3.10.0-957.21.3.el7.s390x.rpm kernel-kdump-devel-3.10.0-957.21.3.el7.s390x.rpm perf-3.10.0-957.21.3.el7.s390x.rpm perf-debuginfo-3.10.0-957.21.3.el7.s390x.rpm python-perf-3.10.0-957.21.3.el7.s390x.rpm python-perf-debuginfo-3.10.0-957.21.3.el7.s390x.rpm
x86_64: bpftool-3.10.0-957.21.3.el7.x86_64.rpm kernel-3.10.0-957.21.3.el7.x86_64.rpm kernel-debug-3.10.0-957.21.3.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm kernel-debug-devel-3.10.0-957.21.3.el7.x86_64.rpm kernel-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-957.21.3.el7.x86_64.rpm kernel-devel-3.10.0-957.21.3.el7.x86_64.rpm kernel-headers-3.10.0-957.21.3.el7.x86_64.rpm kernel-tools-3.10.0-957.21.3.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm kernel-tools-libs-3.10.0-957.21.3.el7.x86_64.rpm perf-3.10.0-957.21.3.el7.x86_64.rpm perf-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm python-perf-3.10.0-957.21.3.el7.x86_64.rpm python-perf-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm
Red Hat Enterprise Linux Server Optional (v. 7):
ppc64: kernel-debug-debuginfo-3.10.0-957.21.3.el7.ppc64.rpm kernel-debuginfo-3.10.0-957.21.3.el7.ppc64.rpm kernel-debuginfo-common-ppc64-3.10.0-957.21.3.el7.ppc64.rpm kernel-tools-debuginfo-3.10.0-957.21.3.el7.ppc64.rpm kernel-tools-libs-devel-3.10.0-957.21.3.el7.ppc64.rpm perf-debuginfo-3.10.0-957.21.3.el7.ppc64.rpm python-perf-debuginfo-3.10.0-957.21.3.el7.ppc64.rpm
ppc64le: kernel-debug-debuginfo-3.10.0-957.21.3.el7.ppc64le.rpm kernel-debug-devel-3.10.0-957.21.3.el7.ppc64le.rpm kernel-debuginfo-3.10.0-957.21.3.el7.ppc64le.rpm kernel-debuginfo-common-ppc64le-3.10.0-957.21.3.el7.ppc64le.rpm kernel-tools-debuginfo-3.10.0-957.21.3.el7.ppc64le.rpm kernel-tools-libs-devel-3.10.0-957.21.3.el7.ppc64le.rpm perf-debuginfo-3.10.0-957.21.3.el7.ppc64le.rpm python-perf-debuginfo-3.10.0-957.21.3.el7.ppc64le.rpm
x86_64: kernel-debug-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm kernel-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-957.21.3.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-957.21.3.el7.x86_64.rpm perf-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm python-perf-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm
Red Hat Enterprise Linux Workstation (v. 7):
Source: kernel-3.10.0-957.21.3.el7.src.rpm
noarch: kernel-abi-whitelists-3.10.0-957.21.3.el7.noarch.rpm kernel-doc-3.10.0-957.21.3.el7.noarch.rpm
x86_64: bpftool-3.10.0-957.21.3.el7.x86_64.rpm kernel-3.10.0-957.21.3.el7.x86_64.rpm kernel-debug-3.10.0-957.21.3.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm kernel-debug-devel-3.10.0-957.21.3.el7.x86_64.rpm kernel-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-957.21.3.el7.x86_64.rpm kernel-devel-3.10.0-957.21.3.el7.x86_64.rpm kernel-headers-3.10.0-957.21.3.el7.x86_64.rpm kernel-tools-3.10.0-957.21.3.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm kernel-tools-libs-3.10.0-957.21.3.el7.x86_64.rpm perf-3.10.0-957.21.3.el7.x86_64.rpm perf-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm python-perf-3.10.0-957.21.3.el7.x86_64.rpm python-perf-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm
Red Hat Enterprise Linux Workstation Optional (v. 7):
x86_64: kernel-debug-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm kernel-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-957.21.3.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-957.21.3.el7.x86_64.rpm perf-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm python-perf-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/
- References:
https://access.redhat.com/security/cve/CVE-2019-11477 https://access.redhat.com/security/cve/CVE-2019-11478 https://access.redhat.com/security/cve/CVE-2019-11479 https://access.redhat.com/security/updates/classification/#important https://access.redhat.com/security/vulnerabilities/tcpsack
- Contact:
The Red Hat security contact is secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/
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-- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce .
ATTENTION: Due to an unavoidable ABI change the kernel updates have been given a new version number, which requires you to recompile and reinstall all third party kernel modules you might have installed. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual, linux-powerpc), a standard system upgrade will automatically perform this as well. 8) - aarch64, noarch, ppc64le, s390x, x86_64
Bug Fix(es):
-
[HPE 8.0 Bug] nvme drive power button does not turn off drive (BZ#1700288)
-
RHEL8.0 - hw csum failure seen in dmesg and console (using mlx5/mlx4/Mellanox) (BZ#1700289)
-
RHEL8.0 - vfio-ap: add subsystem to matrix device to avoid libudev failures (kvm) (BZ#1700290)
-
[FJ8.1 Bug]: Make Fujitsu Erratum 010001 patch work on A64FX v1r0 (BZ#1700901)
-
[FJ8.0 Bug]: Fujitsu A64FX processor errata - panic by unknown fault (BZ#1700902)
-
RHEL 8.0 Snapshot 4 - nvme create-ns command hangs after creating 20 namespaces on Bolt (NVMe) (BZ#1701140)
-
[Cavium/Marvell 8.0 qed] Fix qed_mcp_halt() and qed_mcp_resume() (backporting bug) (BZ#1704184)
-
[Intel 8.1 Bug] PBF: Base frequency display fix (BZ#1706739)
-
[RHEL8]read/write operation not permitted to /sys/kernel/debug/gcov/reset (BZ#1708100)
-
RHEL8.0 - ISST-LTE:pVM:fleetwood:LPM:raylp85:After lpm seeing the console logs on the the lpar at target side (BZ#1708102)
-
RHEL8.0 - Backport support for software count cache flush Spectre v2 mitigation (BZ#1708112)
-
[Regression] RHEL8.0 - System crashed with one stress-ng-mremap stressor on Boston (kvm host) (BZ#1708617)
-
[intel ice Rhel 8 RC1] ethtool -A ethx causes interfaces to go down (BZ#1709433)
-
These packages include redhat-release-virtualization-host, ovirt-node, and rhev-hypervisor. RHVH features a Cockpit user interface for monitoring the host's resources and performing administrative tasks.
The following packages have been upgraded to a later upstream version: redhat-release-virtualization-host (4.3.4), redhat-virtualization-host (4.3.4). 7) - aarch64, noarch, ppc64le
3
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"data": "Jonathan Looney discovered that the TCP retransmission queue implementation in tcp_fragment in the Linux kernel could be fragmented when handling certain TCP Selective Acknowledgment (SACK) sequences. A remote attacker could use this to cause a denial of service. This has been fixed in stable kernel releases 4.4.182, 4.9.182, 4.14.127, 4.19.52, 5.1.11, and is fixed in commit f070ef2ac66716357066b683fb0baf55f8191a2e. This vulnerability stems from improper management of system resources (such as memory, disk space, files, etc.) by network systems or products. A successful exploit could cause the targeted system to crash, resulting in a DoS condition. \nProof-of-concept (PoC) code that demonstrates an exploit of this vulnerability is publicly available. \nKernel.org has confirmed the vulnerability and released software updates. 7.3) - noarch, x86_64\n\n3. \n\nBug Fix(es):\n\n* THP: Race between MADV_DONTNEED and NUMA hinting node migration code\n(BZ#1698104)\n\n* [RHEL7] md_clear flag missing from /proc/cpuinfo on late microcode update\n(BZ#1712990)\n\n* [RHEL7] MDS mitigations are not enabled after double microcode update\n(BZ#1712995)\n\n* WARNING: CPU: 0 PID: 0 at kernel/jump_label.c:90\n__static_key_slow_dec+0xa6/0xb0 (BZ#1713001)\n\n4. ==========================================================================\nKernel Live Patch Security Notice 0058-1\nOctober 22, 2019\n\nlinux vulnerability\n==========================================================================\n\nA security issue affects these releases of Ubuntu:\n\n| Series | Base kernel | Arch | flavors |\n|------------------+--------------+----------+------------------|\n| Ubuntu 18.04 LTS | 4.15.0 | amd64 | aws |\n| Ubuntu 18.04 LTS | 4.15.0 | amd64 | generic |\n| Ubuntu 18.04 LTS | 4.15.0 | amd64 | lowlatency |\n| Ubuntu 18.04 LTS | 4.15.0 | amd64 | oem |\n| Ubuntu 18.04 LTS | 5.0.0 | amd64 | azure |\n| Ubuntu 14.04 LTS | 4.4.0 | amd64 | generic |\n| Ubuntu 14.04 LTS | 4.4.0 | amd64 | lowlatency |\n| Ubuntu 16.04 LTS | 4.4.0 | amd64 | aws |\n| Ubuntu 16.04 LTS | 4.4.0 | amd64 | generic |\n| Ubuntu 16.04 LTS | 4.4.0 | amd64 | lowlatency |\n| Ubuntu 16.04 LTS | 4.15.0 | amd64 | azure |\n| Ubuntu 16.04 LTS | 4.15.0 | amd64 | generic |\n| Ubuntu 16.04 LTS | 4.15.0 | amd64 | lowlatency |\n\nSummary:\n\nSeveral security issues were fixed in the kernel. \n\nSoftware Description:\n- linux: Linux kernel\n\nDetails:\n\nIt was discovered that a race condition existed in the GFS2 file system in\nthe Linux kernel. (CVE-2016-10905)\n\nIt was discovered that a use-after-free error existed in the block layer\nsubsystem of the Linux kernel when certain failure conditions occurred. (CVE-2018-20856)\n\nIt was discovered that the USB gadget Midi driver in the Linux kernel\ncontained a double-free vulnerability when handling certain error\nconditions. (CVE-2018-20961)\n\nIt was discovered that the XFS file system in the Linux kernel did not\nproperly handle mount failures in some situations. (CVE-2018-20976)\n\nIt was discovered that the RSI 91x Wi-Fi driver in the Linux kernel did not\ndid not handle detach operations correctly, leading to a use-after-free\nvulnerability. \n(CVE-2018-21008)\n\nIt was discovered that the Intel Wi-Fi device driver in the Linux kernel\ndid not properly validate certain Tunneled Direct Link Setup (TDLS). (CVE-2019-0136)\n\nIt was discovered that the Linux kernel on ARM processors allowed a tracing\nprocess to modify a syscall after a seccomp decision had been made on that\nsyscall. (CVE-2019-2054)\n\nIt was discovered that an integer overflow existed in the Binder\nimplementation of the Linux kernel, leading to a buffer overflow. (CVE-2019-2181)\n\nIt was discovered that the Marvell Wireless LAN device driver in the Linux\nkernel did not properly validate the BSS descriptor. (CVE-2019-3846)\n\nIt was discovered that a heap buffer overflow existed in the Marvell\nWireless LAN device driver for the Linux kernel. (CVE-2019-10126)\n\nIt was discovered that the Bluetooth UART implementation in the Linux\nkernel did not properly check for missing tty operations. (CVE-2019-11478)\n\nIt was discovered that the ext4 file system implementation in the Linux\nkernel did not properly zero out memory in some situations. A local\nattacker could use this to expose sensitive information (kernel memory). \n(CVE-2019-11833)\n\nIt was discovered that the PowerPC dlpar implementation in the Linux kernel\ndid not properly check for allocation errors in some situations. (CVE-2019-12614)\n\nIt was discovered that the floppy driver in the Linux kernel did not\nproperly validate meta data, leading to a buffer overread. \n(CVE-2019-14283)\n\nIt was discovered that the floppy driver in the Linux kernel did not\nproperly validate ioctl() calls, leading to a division-by-zero. \n(CVE-2019-14284)\n\nWen Huang discovered that the Marvell Wi-Fi device driver in the Linux\nkernel did not properly perform bounds checking, leading to a heap\noverflow. (CVE-2019-14814)\n\nWen Huang discovered that the Marvell Wi-Fi device driver in the Linux\nkernel did not properly perform bounds checking, leading to a heap\noverflow. (CVE-2019-14815)\n\nWen Huang discovered that the Marvell Wi-Fi device driver in the Linux\nkernel did not properly perform bounds checking, leading to a heap\noverflow. (CVE-2019-14816)\n\nMatt Delco discovered that the KVM hypervisor implementation in the Linux\nkernel did not properly perform bounds checking when handling coalesced\nMMIO write operations. (CVE-2019-14821)\n\nPeter Pi discovered a buffer overflow in the virtio network backend\n(vhost_net) implementation in the Linux kernel. (CVE-2019-14835)\n\nUpdate instructions:\n\nThe problem can be corrected by updating your livepatches to the following\nversions:\n\n| Kernel | Version | flavors |\n|--------------------------+----------+--------------------------|\n| 4.4.0-148.174 | 58.1 | lowlatency, generic |\n| 4.4.0-148.174~14.04.1 | 58.1 | lowlatency, generic |\n| 4.4.0-150.176 | 58.1 | generic, lowlatency |\n| 4.4.0-150.176~14.04.1 | 58.1 | lowlatency, generic |\n| 4.4.0-151.178 | 58.1 | lowlatency, generic |\n| 4.4.0-151.178~14.04.1 | 58.1 | generic, lowlatency |\n| 4.4.0-154.181 | 58.1 | lowlatency, generic |\n| 4.4.0-154.181~14.04.1 | 58.1 | generic, lowlatency |\n| 4.4.0-157.185 | 58.1 | lowlatency, generic |\n| 4.4.0-157.185~14.04.1 | 58.1 | generic, lowlatency |\n| 4.4.0-159.187 | 58.1 | lowlatency, generic |\n| 4.4.0-159.187~14.04.1 | 58.1 | generic, lowlatency |\n| 4.4.0-161.189 | 58.1 | lowlatency, generic |\n| 4.4.0-161.189~14.04.1 | 58.1 | lowlatency, generic |\n| 4.4.0-164.192 | 58.1 | lowlatency, generic |\n| 4.4.0-164.192~14.04.1 | 58.1 | lowlatency, generic |\n| 4.4.0-165.193 | 58.1 | generic, lowlatency |\n| 4.4.0-1083.93 | 58.1 | aws |\n| 4.4.0-1084.94 | 58.1 | aws |\n| 4.4.0-1085.96 | 58.1 | aws |\n| 4.4.0-1087.98 | 58.1 | aws |\n| 4.4.0-1088.99 | 58.1 | aws |\n| 4.4.0-1090.101 | 58.1 | aws |\n| 4.4.0-1092.103 | 58.1 | aws |\n| 4.4.0-1094.105 | 58.1 | aws |\n| 4.15.0-50.54 | 58.1 | generic, lowlatency |\n| 4.15.0-50.54~16.04.1 | 58.1 | generic, lowlatency |\n| 4.15.0-51.55 | 58.1 | generic, lowlatency |\n| 4.15.0-51.55~16.04.1 | 58.1 | generic, lowlatency |\n| 4.15.0-52.56 | 58.1 | lowlatency, generic |\n| 4.15.0-52.56~16.04.1 | 58.1 | generic, lowlatency |\n| 4.15.0-54.58 | 58.1 | generic, lowlatency |\n| 4.15.0-54.58~16.04.1 | 58.1 | generic, lowlatency |\n| 4.15.0-55.60 | 58.1 | generic, lowlatency |\n| 4.15.0-58.64 | 58.1 | generic, lowlatency |\n| 4.15.0-58.64~16.04.1 | 58.1 | lowlatency, generic |\n| 4.15.0-60.67 | 58.1 | lowlatency, generic |\n| 4.15.0-60.67~16.04.1 | 58.1 | generic, lowlatency |\n| 4.15.0-62.69 | 58.1 | generic, lowlatency |\n| 4.15.0-62.69~16.04.1 | 58.1 | lowlatency, generic |\n| 4.15.0-64.73 | 58.1 | generic, lowlatency |\n| 4.15.0-64.73~16.04.1 | 58.1 | lowlatency, generic |\n| 4.15.0-65.74 | 58.1 | lowlatency, generic |\n| 4.15.0-1038.43 | 58.1 | oem |\n| 4.15.0-1039.41 | 58.1 | aws |\n| 4.15.0-1039.44 | 58.1 | oem |\n| 4.15.0-1040.42 | 58.1 | aws |\n| 4.15.0-1041.43 | 58.1 | aws |\n| 4.15.0-1043.45 | 58.1 | aws |\n| 4.15.0-1043.48 | 58.1 | oem |\n| 4.15.0-1044.46 | 58.1 | aws |\n| 4.15.0-1045.47 | 58.1 | aws |\n| 4.15.0-1045.50 | 58.1 | oem |\n| 4.15.0-1047.49 | 58.1 | aws |\n| 4.15.0-1047.51 | 58.1 | azure |\n| 4.15.0-1048.50 | 58.1 | aws |\n| 4.15.0-1049.54 | 58.1 | azure |\n| 4.15.0-1050.52 | 58.1 | aws |\n| 4.15.0-1050.55 | 58.1 | azure |\n| 4.15.0-1050.57 | 58.1 | oem |\n| 4.15.0-1051.53 | 58.1 | aws |\n| 4.15.0-1051.56 | 58.1 | azure |\n| 4.15.0-1052.57 | 58.1 | azure |\n| 4.15.0-1055.60 | 58.1 | azure |\n| 4.15.0-1056.61 | 58.1 | azure |\n| 4.15.0-1056.65 | 58.1 | oem |\n| 4.15.0-1057.62 | 58.1 | azure |\n| 4.15.0-1057.66 | 58.1 | oem |\n| 4.15.0-1059.64 | 58.1 | azure |\n| 5.0.0-1014.14~18.04.1 | 58.1 | azure |\n| 5.0.0-1016.17~18.04.1 | 58.1 | azure |\n| 5.0.0-1018.19~18.04.1 | 58.1 | azure |\n| 5.0.0-1020.21~18.04.1 | 58.1 | azure |\n\nSupport Information:\n\nKernels older than the levels listed below do not receive livepatch\nupdates. Please upgrade your kernel as soon as possible. \n\n| Series | Version | Flavors |\n|------------------+------------------+--------------------------|\n| Ubuntu 18.04 LTS | 4.15.0-1039 | aws |\n| Ubuntu 16.04 LTS | 4.4.0-1083 | aws |\n| Ubuntu 18.04 LTS | 5.0.0-1000 | azure |\n| Ubuntu 16.04 LTS | 4.15.0-1047 | azure |\n| Ubuntu 18.04 LTS | 4.15.0-50 | generic lowlatency |\n| Ubuntu 16.04 LTS | 4.15.0-50 | generic lowlatency |\n| Ubuntu 14.04 LTS | 4.4.0-148 | generic lowlatency |\n| Ubuntu 18.04 LTS | 4.15.0-1038 | oem |\n| Ubuntu 16.04 LTS | 4.4.0-148 | generic lowlatency |\n\nReferences:\n CVE-2016-10905, CVE-2018-20856, CVE-2018-20961, CVE-2018-20976, \n CVE-2018-21008, CVE-2019-0136, CVE-2019-2054, CVE-2019-2181, \n CVE-2019-3846, CVE-2019-10126, CVE-2019-10207, CVE-2019-11477, \n CVE-2019-11478, CVE-2019-11833, CVE-2019-12614, CVE-2019-14283, \n CVE-2019-14284, CVE-2019-14814, CVE-2019-14815, CVE-2019-14816, \n CVE-2019-14821, CVE-2019-14835\n\n\n-- \nubuntu-security-announce mailing list\nubuntu-security-announce@lists.ubuntu.com\nModify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-security-announce\n. -----BEGIN PGP SIGNED MESSAGE-----\nHash: SHA256\n\n==================================================================== \nRed Hat Security Advisory\n\nSynopsis: Important: kernel security update\nAdvisory ID: RHSA-2019:1481-01\nProduct: Red Hat Enterprise Linux\nAdvisory URL: https://access.redhat.com/errata/RHSA-2019:1481\nIssue date: 2019-06-17\nCVE Names: CVE-2019-11477 CVE-2019-11478 CVE-2019-11479\n====================================================================\n1. Summary:\n\nAn update for kernel is now available for Red Hat Enterprise Linux 7. \n\nRed Hat Product Security has rated this update as having a security impact\nof Important. A Common Vulnerability Scoring System (CVSS) base score,\nwhich gives a detailed severity rating, is available for each vulnerability\nfrom the CVE link(s) in the References section. \n\n2. Relevant releases/architectures:\n\nRed Hat Enterprise Linux Client (v. 7) - noarch, x86_64\nRed Hat Enterprise Linux Client Optional (v. 7) - x86_64\nRed Hat Enterprise Linux ComputeNode (v. 7) - noarch, x86_64\nRed Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64\nRed Hat Enterprise Linux Server (v. 7) - noarch, ppc64, ppc64le, s390x, x86_64\nRed Hat Enterprise Linux Server Optional (v. 7) - ppc64, ppc64le, x86_64\nRed Hat Enterprise Linux Workstation (v. 7) - noarch, x86_64\nRed Hat Enterprise Linux Workstation Optional (v. 7) - x86_64\n\n3. While processing SACK segments, the Linux kernel\u0027s socket buffer\n(SKB) data structure becomes fragmented. Each fragment is about TCP maximum\nsegment size (MSS) bytes. To efficiently process SACK blocks, the Linux\nkernel merges multiple fragmented SKBs into one, potentially overflowing\nthe variable holding the number of segments. A remote attacker could use\nthis flaw to crash the Linux kernel by sending a crafted sequence of SACK\nsegments on a TCP connection with small value of TCP MSS, resulting in a\ndenial of service (DoS). (CVE-2019-11477)\n\n* Kernel: tcp: excessive resource consumption while processing SACK blocks\nallows remote denial of service (CVE-2019-11478)\n\n* Kernel: tcp: excessive resource consumption for TCP connections with low\nMSS allows remote denial of service (CVE-2019-11479)\n\nFor more details about the security issue(s), including the impact, a CVSS\nscore, acknowledgments, and other related information, refer to the CVE\npage(s) listed in the References section. \n\n4. Solution:\n\nFor details on how to apply this update, which includes the changes\ndescribed in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect. \n\n5. Bugs fixed (https://bugzilla.redhat.com/):\n\n1719123 - CVE-2019-11477 Kernel: tcp: integer overflow while processing SACK blocks allows remote denial of service\n1719128 - CVE-2019-11478 Kernel: tcp: excessive resource consumption while processing SACK blocks allows remote denial of service\n1719129 - CVE-2019-11479 Kernel: tcp: excessive resource consumption for TCP connections with low MSS allows remote denial of service\n\n6. Package List:\n\nRed Hat Enterprise Linux Client (v. 7):\n\nSource:\nkernel-3.10.0-957.21.3.el7.src.rpm\n\nnoarch:\nkernel-abi-whitelists-3.10.0-957.21.3.el7.noarch.rpm\nkernel-doc-3.10.0-957.21.3.el7.noarch.rpm\n\nx86_64:\nbpftool-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-debug-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-debug-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-debug-devel-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-debuginfo-common-x86_64-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-devel-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-headers-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-tools-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-tools-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-tools-libs-3.10.0-957.21.3.el7.x86_64.rpm\nperf-3.10.0-957.21.3.el7.x86_64.rpm\nperf-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\npython-perf-3.10.0-957.21.3.el7.x86_64.rpm\npython-perf-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\n\nRed Hat Enterprise Linux Client Optional (v. 7):\n\nx86_64:\nkernel-debug-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-debuginfo-common-x86_64-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-tools-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-tools-libs-devel-3.10.0-957.21.3.el7.x86_64.rpm\nperf-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\npython-perf-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\n\nRed Hat Enterprise Linux ComputeNode (v. 7):\n\nSource:\nkernel-3.10.0-957.21.3.el7.src.rpm\n\nnoarch:\nkernel-abi-whitelists-3.10.0-957.21.3.el7.noarch.rpm\nkernel-doc-3.10.0-957.21.3.el7.noarch.rpm\n\nx86_64:\nbpftool-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-debug-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-debug-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-debug-devel-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-debuginfo-common-x86_64-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-devel-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-headers-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-tools-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-tools-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-tools-libs-3.10.0-957.21.3.el7.x86_64.rpm\nperf-3.10.0-957.21.3.el7.x86_64.rpm\nperf-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\npython-perf-3.10.0-957.21.3.el7.x86_64.rpm\npython-perf-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\n\nRed Hat Enterprise Linux ComputeNode Optional (v. 7):\n\nx86_64:\nkernel-debug-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-debuginfo-common-x86_64-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-tools-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-tools-libs-devel-3.10.0-957.21.3.el7.x86_64.rpm\nperf-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\npython-perf-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\n\nRed Hat Enterprise Linux Server (v. 7):\n\nSource:\nkernel-3.10.0-957.21.3.el7.src.rpm\n\nnoarch:\nkernel-abi-whitelists-3.10.0-957.21.3.el7.noarch.rpm\nkernel-doc-3.10.0-957.21.3.el7.noarch.rpm\n\nppc64:\nkernel-3.10.0-957.21.3.el7.ppc64.rpm\nkernel-bootwrapper-3.10.0-957.21.3.el7.ppc64.rpm\nkernel-debug-3.10.0-957.21.3.el7.ppc64.rpm\nkernel-debug-debuginfo-3.10.0-957.21.3.el7.ppc64.rpm\nkernel-debug-devel-3.10.0-957.21.3.el7.ppc64.rpm\nkernel-debuginfo-3.10.0-957.21.3.el7.ppc64.rpm\nkernel-debuginfo-common-ppc64-3.10.0-957.21.3.el7.ppc64.rpm\nkernel-devel-3.10.0-957.21.3.el7.ppc64.rpm\nkernel-headers-3.10.0-957.21.3.el7.ppc64.rpm\nkernel-tools-3.10.0-957.21.3.el7.ppc64.rpm\nkernel-tools-debuginfo-3.10.0-957.21.3.el7.ppc64.rpm\nkernel-tools-libs-3.10.0-957.21.3.el7.ppc64.rpm\nperf-3.10.0-957.21.3.el7.ppc64.rpm\nperf-debuginfo-3.10.0-957.21.3.el7.ppc64.rpm\npython-perf-3.10.0-957.21.3.el7.ppc64.rpm\npython-perf-debuginfo-3.10.0-957.21.3.el7.ppc64.rpm\n\nppc64le:\nkernel-3.10.0-957.21.3.el7.ppc64le.rpm\nkernel-bootwrapper-3.10.0-957.21.3.el7.ppc64le.rpm\nkernel-debug-3.10.0-957.21.3.el7.ppc64le.rpm\nkernel-debug-debuginfo-3.10.0-957.21.3.el7.ppc64le.rpm\nkernel-debuginfo-3.10.0-957.21.3.el7.ppc64le.rpm\nkernel-debuginfo-common-ppc64le-3.10.0-957.21.3.el7.ppc64le.rpm\nkernel-devel-3.10.0-957.21.3.el7.ppc64le.rpm\nkernel-headers-3.10.0-957.21.3.el7.ppc64le.rpm\nkernel-tools-3.10.0-957.21.3.el7.ppc64le.rpm\nkernel-tools-debuginfo-3.10.0-957.21.3.el7.ppc64le.rpm\nkernel-tools-libs-3.10.0-957.21.3.el7.ppc64le.rpm\nperf-3.10.0-957.21.3.el7.ppc64le.rpm\nperf-debuginfo-3.10.0-957.21.3.el7.ppc64le.rpm\npython-perf-3.10.0-957.21.3.el7.ppc64le.rpm\npython-perf-debuginfo-3.10.0-957.21.3.el7.ppc64le.rpm\n\ns390x:\nkernel-3.10.0-957.21.3.el7.s390x.rpm\nkernel-debug-3.10.0-957.21.3.el7.s390x.rpm\nkernel-debug-debuginfo-3.10.0-957.21.3.el7.s390x.rpm\nkernel-debug-devel-3.10.0-957.21.3.el7.s390x.rpm\nkernel-debuginfo-3.10.0-957.21.3.el7.s390x.rpm\nkernel-debuginfo-common-s390x-3.10.0-957.21.3.el7.s390x.rpm\nkernel-devel-3.10.0-957.21.3.el7.s390x.rpm\nkernel-headers-3.10.0-957.21.3.el7.s390x.rpm\nkernel-kdump-3.10.0-957.21.3.el7.s390x.rpm\nkernel-kdump-debuginfo-3.10.0-957.21.3.el7.s390x.rpm\nkernel-kdump-devel-3.10.0-957.21.3.el7.s390x.rpm\nperf-3.10.0-957.21.3.el7.s390x.rpm\nperf-debuginfo-3.10.0-957.21.3.el7.s390x.rpm\npython-perf-3.10.0-957.21.3.el7.s390x.rpm\npython-perf-debuginfo-3.10.0-957.21.3.el7.s390x.rpm\n\nx86_64:\nbpftool-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-debug-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-debug-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-debug-devel-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-debuginfo-common-x86_64-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-devel-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-headers-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-tools-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-tools-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-tools-libs-3.10.0-957.21.3.el7.x86_64.rpm\nperf-3.10.0-957.21.3.el7.x86_64.rpm\nperf-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\npython-perf-3.10.0-957.21.3.el7.x86_64.rpm\npython-perf-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\n\nRed Hat Enterprise Linux Server Optional (v. 7):\n\nppc64:\nkernel-debug-debuginfo-3.10.0-957.21.3.el7.ppc64.rpm\nkernel-debuginfo-3.10.0-957.21.3.el7.ppc64.rpm\nkernel-debuginfo-common-ppc64-3.10.0-957.21.3.el7.ppc64.rpm\nkernel-tools-debuginfo-3.10.0-957.21.3.el7.ppc64.rpm\nkernel-tools-libs-devel-3.10.0-957.21.3.el7.ppc64.rpm\nperf-debuginfo-3.10.0-957.21.3.el7.ppc64.rpm\npython-perf-debuginfo-3.10.0-957.21.3.el7.ppc64.rpm\n\nppc64le:\nkernel-debug-debuginfo-3.10.0-957.21.3.el7.ppc64le.rpm\nkernel-debug-devel-3.10.0-957.21.3.el7.ppc64le.rpm\nkernel-debuginfo-3.10.0-957.21.3.el7.ppc64le.rpm\nkernel-debuginfo-common-ppc64le-3.10.0-957.21.3.el7.ppc64le.rpm\nkernel-tools-debuginfo-3.10.0-957.21.3.el7.ppc64le.rpm\nkernel-tools-libs-devel-3.10.0-957.21.3.el7.ppc64le.rpm\nperf-debuginfo-3.10.0-957.21.3.el7.ppc64le.rpm\npython-perf-debuginfo-3.10.0-957.21.3.el7.ppc64le.rpm\n\nx86_64:\nkernel-debug-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-debuginfo-common-x86_64-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-tools-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-tools-libs-devel-3.10.0-957.21.3.el7.x86_64.rpm\nperf-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\npython-perf-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\n\nRed Hat Enterprise Linux Workstation (v. 7):\n\nSource:\nkernel-3.10.0-957.21.3.el7.src.rpm\n\nnoarch:\nkernel-abi-whitelists-3.10.0-957.21.3.el7.noarch.rpm\nkernel-doc-3.10.0-957.21.3.el7.noarch.rpm\n\nx86_64:\nbpftool-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-debug-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-debug-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-debug-devel-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-debuginfo-common-x86_64-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-devel-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-headers-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-tools-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-tools-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-tools-libs-3.10.0-957.21.3.el7.x86_64.rpm\nperf-3.10.0-957.21.3.el7.x86_64.rpm\nperf-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\npython-perf-3.10.0-957.21.3.el7.x86_64.rpm\npython-perf-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\n\nRed Hat Enterprise Linux Workstation Optional (v. 7):\n\nx86_64:\nkernel-debug-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-debuginfo-common-x86_64-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-tools-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-tools-libs-devel-3.10.0-957.21.3.el7.x86_64.rpm\nperf-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\npython-perf-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\n\nThese packages are GPG signed by Red Hat for security. Our key and\ndetails on how to verify the signature are available from\nhttps://access.redhat.com/security/team/key/\n\n7. References:\n\nhttps://access.redhat.com/security/cve/CVE-2019-11477\nhttps://access.redhat.com/security/cve/CVE-2019-11478\nhttps://access.redhat.com/security/cve/CVE-2019-11479\nhttps://access.redhat.com/security/updates/classification/#important\nhttps://access.redhat.com/security/vulnerabilities/tcpsack\n\n8. Contact:\n\nThe Red Hat security contact is \u003csecalert@redhat.com\u003e. More contact\ndetails at https://access.redhat.com/security/team/contact/\n\nCopyright 2019 Red Hat, Inc. \n-----BEGIN PGP SIGNATURE-----\nVersion: GnuPG v1\n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\nrjP0JW27B5U=rNYS\n-----END PGP SIGNATURE-----\n\n--\nRHSA-announce mailing list\nRHSA-announce@redhat.com\nhttps://www.redhat.com/mailman/listinfo/rhsa-announce\n. \n\nATTENTION: Due to an unavoidable ABI change the kernel updates have\nbeen given a new version number, which requires you to recompile and\nreinstall all third party kernel modules you might have installed. \nUnless you manually uninstalled the standard kernel metapackages\n(e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,\nlinux-powerpc), a standard system upgrade will automatically perform\nthis as well. 8) - aarch64, noarch, ppc64le, s390x, x86_64\n\n3. \n\nBug Fix(es):\n\n* [HPE 8.0 Bug] nvme drive power button does not turn off drive\n(BZ#1700288)\n\n* RHEL8.0 - hw csum failure seen in dmesg and console (using\nmlx5/mlx4/Mellanox) (BZ#1700289)\n\n* RHEL8.0 - vfio-ap: add subsystem to matrix device to avoid libudev\nfailures (kvm) (BZ#1700290)\n\n* [FJ8.1 Bug]: Make Fujitsu Erratum 010001 patch work on A64FX v1r0\n(BZ#1700901)\n\n* [FJ8.0 Bug]: Fujitsu A64FX processor errata - panic by unknown fault\n(BZ#1700902)\n\n* RHEL 8.0 Snapshot 4 - nvme create-ns command hangs after creating 20\nnamespaces on Bolt (NVMe) (BZ#1701140)\n\n* [Cavium/Marvell 8.0 qed] Fix qed_mcp_halt() and qed_mcp_resume()\n(backporting bug) (BZ#1704184)\n\n* [Intel 8.1 Bug] PBF: Base frequency display fix (BZ#1706739)\n\n* [RHEL8]read/write operation not permitted to /sys/kernel/debug/gcov/reset\n(BZ#1708100)\n\n* RHEL8.0 - ISST-LTE:pVM:fleetwood:LPM:raylp85:After lpm seeing the\nconsole logs on the the lpar at target side (BZ#1708102)\n\n* RHEL8.0 - Backport support for software count cache flush Spectre v2\nmitigation (BZ#1708112)\n\n* [Regression] RHEL8.0 - System crashed with one stress-ng-mremap stressor\non Boston (kvm host) (BZ#1708617)\n\n* [intel ice Rhel 8 RC1] ethtool -A ethx causes interfaces to go down\n(BZ#1709433)\n\n4. These packages include redhat-release-virtualization-host,\novirt-node, and rhev-hypervisor. RHVH features a Cockpit user\ninterface for monitoring the host\u0027s resources and performing administrative\ntasks. \n\nThe following packages have been upgraded to a later upstream version:\nredhat-release-virtualization-host (4.3.4), redhat-virtualization-host\n(4.3.4). 7) - aarch64, noarch, ppc64le\n\n3",
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var-201906-1175
Vulnerability from variot
Jonathan Looney discovered that the TCP_SKB_CB(skb)->tcp_gso_segs value was subject to an integer overflow in the Linux kernel when handling TCP Selective Acknowledgments (SACKs). A remote attacker could use this to cause a denial of service. This has been fixed in stable kernel releases 4.4.182, 4.9.182, 4.14.127, 4.19.52, 5.1.11, and is fixed in commit 3b4929f65b0d8249f19a50245cd88ed1a2f78cff. Linux Kernel Exists in an integer overflow vulnerability.Service operation interruption (DoS) It may be in a state. A successful exploit could cause the targeted system to crash, resulting in a DoS condition. Proof-of-concept (PoC) code that demonstrates an exploit of this vulnerability is publicly available. Kernel.org has confirmed the vulnerability and released software updates. ========================================================================== Kernel Live Patch Security Notice 0052-1 June 18, 2019
linux vulnerability
A security issue affects these releases of Ubuntu:
| Series | Base kernel | Arch | flavors | |------------------+--------------+----------+------------------| | Ubuntu 18.04 LTS | 4.15.0 | amd64 | generic | | Ubuntu 18.04 LTS | 4.15.0 | amd64 | lowlatency | | Ubuntu 16.04 LTS | 4.4.0 | amd64 | generic | | Ubuntu 16.04 LTS | 4.4.0 | amd64 | lowlatency |
Summary:
Several security issues were fixed in the kernel. (CVE-2019-11478)
Update instructions:
The problem can be corrected by updating your livepatches to the following versions:
| Kernel | Version | flavors | |--------------------------+----------+--------------------------| | 4.4.0-148.174 | 52.3 | generic, lowlatency | | 4.4.0-150.176 | 52.3 | generic, lowlatency | | 4.15.0-50.54 | 52.3 | generic, lowlatency | | 4.15.0-50.54~16.04.1 | 52.3 | generic, lowlatency | | 4.15.0-51.55 | 52.3 | generic, lowlatency | | 4.15.0-51.55~16.04.1 | 52.3 | generic, lowlatency |
References: CVE-2019-11477, CVE-2019-11478
-- ubuntu-security-announce mailing list ubuntu-security-announce@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-security-announce . -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256
====================================================================
Red Hat Security Advisory
Synopsis: Important: kernel security update Advisory ID: RHSA-2019:1481-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2019:1481 Issue date: 2019-06-17 CVE Names: CVE-2019-11477 CVE-2019-11478 CVE-2019-11479 ==================================================================== 1. Summary:
An update for kernel is now available for Red Hat Enterprise Linux 7.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
- Relevant releases/architectures:
Red Hat Enterprise Linux Client (v. 7) - noarch, x86_64 Red Hat Enterprise Linux Client Optional (v. 7) - x86_64 Red Hat Enterprise Linux ComputeNode (v. 7) - noarch, x86_64 Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64 Red Hat Enterprise Linux Server (v. 7) - noarch, ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, ppc64le, x86_64 Red Hat Enterprise Linux Workstation (v. 7) - noarch, x86_64 Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64
- Description:
The kernel packages contain the Linux kernel, the core of any Linux operating system. While processing SACK segments, the Linux kernel's socket buffer (SKB) data structure becomes fragmented. To efficiently process SACK blocks, the Linux kernel merges multiple fragmented SKBs into one, potentially overflowing the variable holding the number of segments. A remote attacker could use this flaw to crash the Linux kernel by sending a crafted sequence of SACK segments on a TCP connection with small value of TCP MSS, resulting in a denial of service (DoS). (CVE-2019-11477)
-
Kernel: tcp: excessive resource consumption while processing SACK blocks allows remote denial of service (CVE-2019-11478)
-
Kernel: tcp: excessive resource consumption for TCP connections with low MSS allows remote denial of service (CVE-2019-11479)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
- Solution:
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
The system must be rebooted for this update to take effect.
- Bugs fixed (https://bugzilla.redhat.com/):
1719123 - CVE-2019-11477 Kernel: tcp: integer overflow while processing SACK blocks allows remote denial of service 1719128 - CVE-2019-11478 Kernel: tcp: excessive resource consumption while processing SACK blocks allows remote denial of service 1719129 - CVE-2019-11479 Kernel: tcp: excessive resource consumption for TCP connections with low MSS allows remote denial of service
- Package List:
Red Hat Enterprise Linux Client (v. 7):
Source: kernel-3.10.0-957.21.3.el7.src.rpm
noarch: kernel-abi-whitelists-3.10.0-957.21.3.el7.noarch.rpm kernel-doc-3.10.0-957.21.3.el7.noarch.rpm
x86_64: bpftool-3.10.0-957.21.3.el7.x86_64.rpm kernel-3.10.0-957.21.3.el7.x86_64.rpm kernel-debug-3.10.0-957.21.3.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm kernel-debug-devel-3.10.0-957.21.3.el7.x86_64.rpm kernel-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-957.21.3.el7.x86_64.rpm kernel-devel-3.10.0-957.21.3.el7.x86_64.rpm kernel-headers-3.10.0-957.21.3.el7.x86_64.rpm kernel-tools-3.10.0-957.21.3.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm kernel-tools-libs-3.10.0-957.21.3.el7.x86_64.rpm perf-3.10.0-957.21.3.el7.x86_64.rpm perf-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm python-perf-3.10.0-957.21.3.el7.x86_64.rpm python-perf-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
x86_64: kernel-debug-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm kernel-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-957.21.3.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-957.21.3.el7.x86_64.rpm perf-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm python-perf-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm
Red Hat Enterprise Linux ComputeNode (v. 7):
Source: kernel-3.10.0-957.21.3.el7.src.rpm
noarch: kernel-abi-whitelists-3.10.0-957.21.3.el7.noarch.rpm kernel-doc-3.10.0-957.21.3.el7.noarch.rpm
x86_64: bpftool-3.10.0-957.21.3.el7.x86_64.rpm kernel-3.10.0-957.21.3.el7.x86_64.rpm kernel-debug-3.10.0-957.21.3.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm kernel-debug-devel-3.10.0-957.21.3.el7.x86_64.rpm kernel-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-957.21.3.el7.x86_64.rpm kernel-devel-3.10.0-957.21.3.el7.x86_64.rpm kernel-headers-3.10.0-957.21.3.el7.x86_64.rpm kernel-tools-3.10.0-957.21.3.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm kernel-tools-libs-3.10.0-957.21.3.el7.x86_64.rpm perf-3.10.0-957.21.3.el7.x86_64.rpm perf-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm python-perf-3.10.0-957.21.3.el7.x86_64.rpm python-perf-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional (v. 7):
x86_64: kernel-debug-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm kernel-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-957.21.3.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-957.21.3.el7.x86_64.rpm perf-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm python-perf-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm
Red Hat Enterprise Linux Server (v. 7):
Source: kernel-3.10.0-957.21.3.el7.src.rpm
noarch: kernel-abi-whitelists-3.10.0-957.21.3.el7.noarch.rpm kernel-doc-3.10.0-957.21.3.el7.noarch.rpm
ppc64: kernel-3.10.0-957.21.3.el7.ppc64.rpm kernel-bootwrapper-3.10.0-957.21.3.el7.ppc64.rpm kernel-debug-3.10.0-957.21.3.el7.ppc64.rpm kernel-debug-debuginfo-3.10.0-957.21.3.el7.ppc64.rpm kernel-debug-devel-3.10.0-957.21.3.el7.ppc64.rpm kernel-debuginfo-3.10.0-957.21.3.el7.ppc64.rpm kernel-debuginfo-common-ppc64-3.10.0-957.21.3.el7.ppc64.rpm kernel-devel-3.10.0-957.21.3.el7.ppc64.rpm kernel-headers-3.10.0-957.21.3.el7.ppc64.rpm kernel-tools-3.10.0-957.21.3.el7.ppc64.rpm kernel-tools-debuginfo-3.10.0-957.21.3.el7.ppc64.rpm kernel-tools-libs-3.10.0-957.21.3.el7.ppc64.rpm perf-3.10.0-957.21.3.el7.ppc64.rpm perf-debuginfo-3.10.0-957.21.3.el7.ppc64.rpm python-perf-3.10.0-957.21.3.el7.ppc64.rpm python-perf-debuginfo-3.10.0-957.21.3.el7.ppc64.rpm
ppc64le: kernel-3.10.0-957.21.3.el7.ppc64le.rpm kernel-bootwrapper-3.10.0-957.21.3.el7.ppc64le.rpm kernel-debug-3.10.0-957.21.3.el7.ppc64le.rpm kernel-debug-debuginfo-3.10.0-957.21.3.el7.ppc64le.rpm kernel-debuginfo-3.10.0-957.21.3.el7.ppc64le.rpm kernel-debuginfo-common-ppc64le-3.10.0-957.21.3.el7.ppc64le.rpm kernel-devel-3.10.0-957.21.3.el7.ppc64le.rpm kernel-headers-3.10.0-957.21.3.el7.ppc64le.rpm kernel-tools-3.10.0-957.21.3.el7.ppc64le.rpm kernel-tools-debuginfo-3.10.0-957.21.3.el7.ppc64le.rpm kernel-tools-libs-3.10.0-957.21.3.el7.ppc64le.rpm perf-3.10.0-957.21.3.el7.ppc64le.rpm perf-debuginfo-3.10.0-957.21.3.el7.ppc64le.rpm python-perf-3.10.0-957.21.3.el7.ppc64le.rpm python-perf-debuginfo-3.10.0-957.21.3.el7.ppc64le.rpm
s390x: kernel-3.10.0-957.21.3.el7.s390x.rpm kernel-debug-3.10.0-957.21.3.el7.s390x.rpm kernel-debug-debuginfo-3.10.0-957.21.3.el7.s390x.rpm kernel-debug-devel-3.10.0-957.21.3.el7.s390x.rpm kernel-debuginfo-3.10.0-957.21.3.el7.s390x.rpm kernel-debuginfo-common-s390x-3.10.0-957.21.3.el7.s390x.rpm kernel-devel-3.10.0-957.21.3.el7.s390x.rpm kernel-headers-3.10.0-957.21.3.el7.s390x.rpm kernel-kdump-3.10.0-957.21.3.el7.s390x.rpm kernel-kdump-debuginfo-3.10.0-957.21.3.el7.s390x.rpm kernel-kdump-devel-3.10.0-957.21.3.el7.s390x.rpm perf-3.10.0-957.21.3.el7.s390x.rpm perf-debuginfo-3.10.0-957.21.3.el7.s390x.rpm python-perf-3.10.0-957.21.3.el7.s390x.rpm python-perf-debuginfo-3.10.0-957.21.3.el7.s390x.rpm
x86_64: bpftool-3.10.0-957.21.3.el7.x86_64.rpm kernel-3.10.0-957.21.3.el7.x86_64.rpm kernel-debug-3.10.0-957.21.3.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm kernel-debug-devel-3.10.0-957.21.3.el7.x86_64.rpm kernel-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-957.21.3.el7.x86_64.rpm kernel-devel-3.10.0-957.21.3.el7.x86_64.rpm kernel-headers-3.10.0-957.21.3.el7.x86_64.rpm kernel-tools-3.10.0-957.21.3.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm kernel-tools-libs-3.10.0-957.21.3.el7.x86_64.rpm perf-3.10.0-957.21.3.el7.x86_64.rpm perf-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm python-perf-3.10.0-957.21.3.el7.x86_64.rpm python-perf-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm
Red Hat Enterprise Linux Server Optional (v. 7):
ppc64: kernel-debug-debuginfo-3.10.0-957.21.3.el7.ppc64.rpm kernel-debuginfo-3.10.0-957.21.3.el7.ppc64.rpm kernel-debuginfo-common-ppc64-3.10.0-957.21.3.el7.ppc64.rpm kernel-tools-debuginfo-3.10.0-957.21.3.el7.ppc64.rpm kernel-tools-libs-devel-3.10.0-957.21.3.el7.ppc64.rpm perf-debuginfo-3.10.0-957.21.3.el7.ppc64.rpm python-perf-debuginfo-3.10.0-957.21.3.el7.ppc64.rpm
ppc64le: kernel-debug-debuginfo-3.10.0-957.21.3.el7.ppc64le.rpm kernel-debug-devel-3.10.0-957.21.3.el7.ppc64le.rpm kernel-debuginfo-3.10.0-957.21.3.el7.ppc64le.rpm kernel-debuginfo-common-ppc64le-3.10.0-957.21.3.el7.ppc64le.rpm kernel-tools-debuginfo-3.10.0-957.21.3.el7.ppc64le.rpm kernel-tools-libs-devel-3.10.0-957.21.3.el7.ppc64le.rpm perf-debuginfo-3.10.0-957.21.3.el7.ppc64le.rpm python-perf-debuginfo-3.10.0-957.21.3.el7.ppc64le.rpm
x86_64: kernel-debug-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm kernel-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-957.21.3.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-957.21.3.el7.x86_64.rpm perf-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm python-perf-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm
Red Hat Enterprise Linux Workstation (v. 7):
Source: kernel-3.10.0-957.21.3.el7.src.rpm
noarch: kernel-abi-whitelists-3.10.0-957.21.3.el7.noarch.rpm kernel-doc-3.10.0-957.21.3.el7.noarch.rpm
x86_64: bpftool-3.10.0-957.21.3.el7.x86_64.rpm kernel-3.10.0-957.21.3.el7.x86_64.rpm kernel-debug-3.10.0-957.21.3.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm kernel-debug-devel-3.10.0-957.21.3.el7.x86_64.rpm kernel-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-957.21.3.el7.x86_64.rpm kernel-devel-3.10.0-957.21.3.el7.x86_64.rpm kernel-headers-3.10.0-957.21.3.el7.x86_64.rpm kernel-tools-3.10.0-957.21.3.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm kernel-tools-libs-3.10.0-957.21.3.el7.x86_64.rpm perf-3.10.0-957.21.3.el7.x86_64.rpm perf-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm python-perf-3.10.0-957.21.3.el7.x86_64.rpm python-perf-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm
Red Hat Enterprise Linux Workstation Optional (v. 7):
x86_64: kernel-debug-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm kernel-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-957.21.3.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-957.21.3.el7.x86_64.rpm perf-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm python-perf-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/
- References:
https://access.redhat.com/security/cve/CVE-2019-11477 https://access.redhat.com/security/cve/CVE-2019-11478 https://access.redhat.com/security/cve/CVE-2019-11479 https://access.redhat.com/security/updates/classification/#important https://access.redhat.com/security/vulnerabilities/tcpsack
- Contact:
The Red Hat security contact is secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/
Copyright 2019 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1
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-- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce . Description:
The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.
Bug Fix(es):
-
kernel-rt: update to the RHEL8.0.z batch#1 source tree (BZ#1704955)
-
7.5) - ppc64, ppc64le, x86_64
-
These packages include redhat-release-virtualization-host, ovirt-node, and rhev-hypervisor. RHVH features a Cockpit user interface for monitoring the host's resources and performing administrative tasks. # Advisory
ID: NFLX-2019-001
Title: Linux and FreeBSD Kernel: Multiple TCP-based remote denial of service vulnerabilities
Release Date: 2019-06-17
Severity: Critical
Overview:
Netflix has identified several TCP networking vulnerabilities in FreeBSD and Linux kernels.
The vulnerabilities specifically relate to the minimum segment size (MSS) and TCP Selective Acknowledgement (SACK) capabilities. The most serious, dubbed “SACK Panic,” allows a remotely-triggered kernel panic on recent Linux kernels.
There are patches that address most of these vulnerabilities. If patches can not be applied, certain mitigations will be effective. We recommend that affected parties enact one of those described below, based on their environment.
Fix: Apply the patch PATCH_net_1_4.patch. Additionally, versions of the Linux kernel up to, and including, 4.14 require a second patch PATCH_net_1a.patch.
Workaround #1: Block connections with a low MSS using one of the supplied filters. (The values in the filters are examples. You can apply a higher or lower limit, as appropriate for your environment.) Note that these filters may break legitimate connections which rely on a low MSS. Also, note that this mitigation is only effective if TCP probing is disabled (that is, the net.ipv4.tcp_mtu_probing sysctl is set to 0, which appears to be the default value for that sysctl).
Workaround #2: Disable SACK processing (/proc/sys/net/ipv4/tcp_sack set to 0).
(Note that either workaround should be sufficient on its own. It is not necessary to apply both workarounds.)
2: CVE-2019-11478: SACK Slowness (Linux < 4.15) or Excess Resource Usage (all Linux versions)
Description: It is possible to send a crafted sequence of SACKs which will fragment the TCP retransmission queue. On Linux kernels prior to 4.15, an attacker may be able to further exploit the fragmented queue to cause an expensive linked-list walk for subsequent SACKs received for that same TCP connection.
Fix: Apply the patch PATCH_net_2_4.patch
Workaround #1: Block connections with a low MSS using one of the supplied filters. (The values in the filters are examples. You can apply a higher or lower limit, as appropriate for your environment.) Note that these filters may break legitimate connections which rely on a low MSS. Also, note that this mitigation is only effective if TCP probing is disabled (that is, the net.ipv4.tcp_mtu_probing sysctl is set to 0, which appears to be the default value for that sysctl).
Workaround #2: Disable SACK processing (/proc/sys/net/ipv4/tcp_sack set to 0).
(Note that either workaround should be sufficient on its own. It is not necessary to apply both workarounds.)
3: CVE-2019-5599: SACK Slowness (FreeBSD 12 using the RACK TCP Stack)
Description: It is possible to send a crafted sequence of SACKs which will fragment the RACK send map. An attacker may be able to further exploit the fragmented send map to cause an expensive linked-list walk for subsequent SACKs received for that same TCP connection.
Workaround #1: Apply the patch split_limit.patch and set the net.inet.tcp.rack.split_limit sysctl to a reasonable value to limit the size of the SACK table.
Workaround #2: Temporarily disable the RACK TCP stack.
(Note that either workaround should be sufficient on its own. It is not necessary to apply both workarounds.)
4: CVE-2019-11479: Excess Resource Consumption Due to Low MSS Values (all Linux versions)
Description: An attacker can force the Linux kernel to segment its responses into multiple TCP segments, each of which contains only 8 bytes of data. This drastically increases the bandwidth required to deliver the same amount of data. Further, it consumes additional resources (CPU and NIC processing power). This attack requires continued effort from the attacker and the impacts will end shortly after the attacker stops sending traffic.
Fix: Two patches PATCH_net_3_4.patch and PATCH_net_4_4.patch add a sysctl which enforces a minimum MSS, set by the net.ipv4.tcp_min_snd_mss sysctl. This lets an administrator enforce a minimum MSS appropriate for their applications.
Workaround: Block connections with a low MSS using one of the supplied filters. (The values in the filters are examples. You can apply a higher or lower limit, as appropriate for your environment.) Note that these filters may break legitimate connections which rely on a low MSS. Also, note that this mitigation is only effective if TCP probing is disabled (that is, the net.ipv4.tcp_mtu_probing sysctl is set to 0, which appears to be the default value for that sysctl).
Note:
Good system and application coding and configuration practices (limiting write buffers to the necessary level, monitoring connection memory consumption via SO_MEMINFO, and aggressively closing misbehaving connections) can help to limit the impact of attacks against these kinds of vulnerabilities.
Acknowledgments:
Originally reported by Jonathan Looney.
We thank Eric Dumazet for providing Linux fixes and support.
We thank Bruce Curtis for providing the Linux filters.
We thank Jonathan Lemon and Alexey Kodanev for helping to improve the Linux patches.
We gratefully acknowledge the assistance of Tyler Hicks in testing fixes, refining the information about vulnerable versions, and providing assistance during the disclosure process.
Bug Fix(es):
-
MDS mitigations not enabled on Intel Skylake CPUs (BZ#1713026)
-
[RHEL6] md_clear flag missing from /proc/cpuinfo (BZ#1713029)
-
RHEL6 kernel does not disable SMT with mds=full,nosmt (BZ#1713044)
4
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"data": "Jonathan Looney discovered that the TCP_SKB_CB(skb)-\u003etcp_gso_segs value was subject to an integer overflow in the Linux kernel when handling TCP Selective Acknowledgments (SACKs). A remote attacker could use this to cause a denial of service. This has been fixed in stable kernel releases 4.4.182, 4.9.182, 4.14.127, 4.19.52, 5.1.11, and is fixed in commit 3b4929f65b0d8249f19a50245cd88ed1a2f78cff. Linux Kernel Exists in an integer overflow vulnerability.Service operation interruption (DoS) It may be in a state. A successful exploit could cause the targeted system to crash, resulting in a DoS condition. \nProof-of-concept (PoC) code that demonstrates an exploit of this vulnerability is publicly available. \nKernel.org has confirmed the vulnerability and released software updates. ==========================================================================\nKernel Live Patch Security Notice 0052-1\nJune 18, 2019\n\nlinux vulnerability\n==========================================================================\n\nA security issue affects these releases of Ubuntu:\n\n| Series | Base kernel | Arch | flavors |\n|------------------+--------------+----------+------------------|\n| Ubuntu 18.04 LTS | 4.15.0 | amd64 | generic |\n| Ubuntu 18.04 LTS | 4.15.0 | amd64 | lowlatency |\n| Ubuntu 16.04 LTS | 4.4.0 | amd64 | generic |\n| Ubuntu 16.04 LTS | 4.4.0 | amd64 | lowlatency |\n\nSummary:\n\nSeveral security issues were fixed in the kernel. (CVE-2019-11478)\n\nUpdate instructions:\n\nThe problem can be corrected by updating your livepatches to the following\nversions:\n\n| Kernel | Version | flavors |\n|--------------------------+----------+--------------------------|\n| 4.4.0-148.174 | 52.3 | generic, lowlatency |\n| 4.4.0-150.176 | 52.3 | generic, lowlatency |\n| 4.15.0-50.54 | 52.3 | generic, lowlatency |\n| 4.15.0-50.54~16.04.1 | 52.3 | generic, lowlatency |\n| 4.15.0-51.55 | 52.3 | generic, lowlatency |\n| 4.15.0-51.55~16.04.1 | 52.3 | generic, lowlatency |\n\nReferences:\n CVE-2019-11477, CVE-2019-11478\n\n\n-- \nubuntu-security-announce mailing list\nubuntu-security-announce@lists.ubuntu.com\nModify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-security-announce\n. -----BEGIN PGP SIGNED MESSAGE-----\nHash: SHA256\n\n==================================================================== \nRed Hat Security Advisory\n\nSynopsis: Important: kernel security update\nAdvisory ID: RHSA-2019:1481-01\nProduct: Red Hat Enterprise Linux\nAdvisory URL: https://access.redhat.com/errata/RHSA-2019:1481\nIssue date: 2019-06-17\nCVE Names: CVE-2019-11477 CVE-2019-11478 CVE-2019-11479\n====================================================================\n1. Summary:\n\nAn update for kernel is now available for Red Hat Enterprise Linux 7. \n\nRed Hat Product Security has rated this update as having a security impact\nof Important. A Common Vulnerability Scoring System (CVSS) base score,\nwhich gives a detailed severity rating, is available for each vulnerability\nfrom the CVE link(s) in the References section. \n\n2. Relevant releases/architectures:\n\nRed Hat Enterprise Linux Client (v. 7) - noarch, x86_64\nRed Hat Enterprise Linux Client Optional (v. 7) - x86_64\nRed Hat Enterprise Linux ComputeNode (v. 7) - noarch, x86_64\nRed Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64\nRed Hat Enterprise Linux Server (v. 7) - noarch, ppc64, ppc64le, s390x, x86_64\nRed Hat Enterprise Linux Server Optional (v. 7) - ppc64, ppc64le, x86_64\nRed Hat Enterprise Linux Workstation (v. 7) - noarch, x86_64\nRed Hat Enterprise Linux Workstation Optional (v. 7) - x86_64\n\n3. Description:\n\nThe kernel packages contain the Linux kernel, the core of any Linux\noperating system. While processing SACK segments, the Linux kernel\u0027s socket buffer\n(SKB) data structure becomes fragmented. To efficiently process SACK blocks, the Linux\nkernel merges multiple fragmented SKBs into one, potentially overflowing\nthe variable holding the number of segments. A remote attacker could use\nthis flaw to crash the Linux kernel by sending a crafted sequence of SACK\nsegments on a TCP connection with small value of TCP MSS, resulting in a\ndenial of service (DoS). (CVE-2019-11477)\n\n* Kernel: tcp: excessive resource consumption while processing SACK blocks\nallows remote denial of service (CVE-2019-11478)\n\n* Kernel: tcp: excessive resource consumption for TCP connections with low\nMSS allows remote denial of service (CVE-2019-11479)\n\nFor more details about the security issue(s), including the impact, a CVSS\nscore, acknowledgments, and other related information, refer to the CVE\npage(s) listed in the References section. \n\n4. Solution:\n\nFor details on how to apply this update, which includes the changes\ndescribed in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect. \n\n5. Bugs fixed (https://bugzilla.redhat.com/):\n\n1719123 - CVE-2019-11477 Kernel: tcp: integer overflow while processing SACK blocks allows remote denial of service\n1719128 - CVE-2019-11478 Kernel: tcp: excessive resource consumption while processing SACK blocks allows remote denial of service\n1719129 - CVE-2019-11479 Kernel: tcp: excessive resource consumption for TCP connections with low MSS allows remote denial of service\n\n6. Package List:\n\nRed Hat Enterprise Linux Client (v. 7):\n\nSource:\nkernel-3.10.0-957.21.3.el7.src.rpm\n\nnoarch:\nkernel-abi-whitelists-3.10.0-957.21.3.el7.noarch.rpm\nkernel-doc-3.10.0-957.21.3.el7.noarch.rpm\n\nx86_64:\nbpftool-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-debug-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-debug-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-debug-devel-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-debuginfo-common-x86_64-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-devel-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-headers-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-tools-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-tools-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-tools-libs-3.10.0-957.21.3.el7.x86_64.rpm\nperf-3.10.0-957.21.3.el7.x86_64.rpm\nperf-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\npython-perf-3.10.0-957.21.3.el7.x86_64.rpm\npython-perf-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\n\nRed Hat Enterprise Linux Client Optional (v. 7):\n\nx86_64:\nkernel-debug-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-debuginfo-common-x86_64-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-tools-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-tools-libs-devel-3.10.0-957.21.3.el7.x86_64.rpm\nperf-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\npython-perf-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\n\nRed Hat Enterprise Linux ComputeNode (v. 7):\n\nSource:\nkernel-3.10.0-957.21.3.el7.src.rpm\n\nnoarch:\nkernel-abi-whitelists-3.10.0-957.21.3.el7.noarch.rpm\nkernel-doc-3.10.0-957.21.3.el7.noarch.rpm\n\nx86_64:\nbpftool-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-debug-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-debug-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-debug-devel-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-debuginfo-common-x86_64-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-devel-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-headers-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-tools-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-tools-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-tools-libs-3.10.0-957.21.3.el7.x86_64.rpm\nperf-3.10.0-957.21.3.el7.x86_64.rpm\nperf-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\npython-perf-3.10.0-957.21.3.el7.x86_64.rpm\npython-perf-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\n\nRed Hat Enterprise Linux ComputeNode Optional (v. 7):\n\nx86_64:\nkernel-debug-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-debuginfo-common-x86_64-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-tools-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-tools-libs-devel-3.10.0-957.21.3.el7.x86_64.rpm\nperf-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\npython-perf-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\n\nRed Hat Enterprise Linux Server (v. 7):\n\nSource:\nkernel-3.10.0-957.21.3.el7.src.rpm\n\nnoarch:\nkernel-abi-whitelists-3.10.0-957.21.3.el7.noarch.rpm\nkernel-doc-3.10.0-957.21.3.el7.noarch.rpm\n\nppc64:\nkernel-3.10.0-957.21.3.el7.ppc64.rpm\nkernel-bootwrapper-3.10.0-957.21.3.el7.ppc64.rpm\nkernel-debug-3.10.0-957.21.3.el7.ppc64.rpm\nkernel-debug-debuginfo-3.10.0-957.21.3.el7.ppc64.rpm\nkernel-debug-devel-3.10.0-957.21.3.el7.ppc64.rpm\nkernel-debuginfo-3.10.0-957.21.3.el7.ppc64.rpm\nkernel-debuginfo-common-ppc64-3.10.0-957.21.3.el7.ppc64.rpm\nkernel-devel-3.10.0-957.21.3.el7.ppc64.rpm\nkernel-headers-3.10.0-957.21.3.el7.ppc64.rpm\nkernel-tools-3.10.0-957.21.3.el7.ppc64.rpm\nkernel-tools-debuginfo-3.10.0-957.21.3.el7.ppc64.rpm\nkernel-tools-libs-3.10.0-957.21.3.el7.ppc64.rpm\nperf-3.10.0-957.21.3.el7.ppc64.rpm\nperf-debuginfo-3.10.0-957.21.3.el7.ppc64.rpm\npython-perf-3.10.0-957.21.3.el7.ppc64.rpm\npython-perf-debuginfo-3.10.0-957.21.3.el7.ppc64.rpm\n\nppc64le:\nkernel-3.10.0-957.21.3.el7.ppc64le.rpm\nkernel-bootwrapper-3.10.0-957.21.3.el7.ppc64le.rpm\nkernel-debug-3.10.0-957.21.3.el7.ppc64le.rpm\nkernel-debug-debuginfo-3.10.0-957.21.3.el7.ppc64le.rpm\nkernel-debuginfo-3.10.0-957.21.3.el7.ppc64le.rpm\nkernel-debuginfo-common-ppc64le-3.10.0-957.21.3.el7.ppc64le.rpm\nkernel-devel-3.10.0-957.21.3.el7.ppc64le.rpm\nkernel-headers-3.10.0-957.21.3.el7.ppc64le.rpm\nkernel-tools-3.10.0-957.21.3.el7.ppc64le.rpm\nkernel-tools-debuginfo-3.10.0-957.21.3.el7.ppc64le.rpm\nkernel-tools-libs-3.10.0-957.21.3.el7.ppc64le.rpm\nperf-3.10.0-957.21.3.el7.ppc64le.rpm\nperf-debuginfo-3.10.0-957.21.3.el7.ppc64le.rpm\npython-perf-3.10.0-957.21.3.el7.ppc64le.rpm\npython-perf-debuginfo-3.10.0-957.21.3.el7.ppc64le.rpm\n\ns390x:\nkernel-3.10.0-957.21.3.el7.s390x.rpm\nkernel-debug-3.10.0-957.21.3.el7.s390x.rpm\nkernel-debug-debuginfo-3.10.0-957.21.3.el7.s390x.rpm\nkernel-debug-devel-3.10.0-957.21.3.el7.s390x.rpm\nkernel-debuginfo-3.10.0-957.21.3.el7.s390x.rpm\nkernel-debuginfo-common-s390x-3.10.0-957.21.3.el7.s390x.rpm\nkernel-devel-3.10.0-957.21.3.el7.s390x.rpm\nkernel-headers-3.10.0-957.21.3.el7.s390x.rpm\nkernel-kdump-3.10.0-957.21.3.el7.s390x.rpm\nkernel-kdump-debuginfo-3.10.0-957.21.3.el7.s390x.rpm\nkernel-kdump-devel-3.10.0-957.21.3.el7.s390x.rpm\nperf-3.10.0-957.21.3.el7.s390x.rpm\nperf-debuginfo-3.10.0-957.21.3.el7.s390x.rpm\npython-perf-3.10.0-957.21.3.el7.s390x.rpm\npython-perf-debuginfo-3.10.0-957.21.3.el7.s390x.rpm\n\nx86_64:\nbpftool-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-debug-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-debug-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-debug-devel-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-debuginfo-common-x86_64-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-devel-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-headers-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-tools-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-tools-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-tools-libs-3.10.0-957.21.3.el7.x86_64.rpm\nperf-3.10.0-957.21.3.el7.x86_64.rpm\nperf-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\npython-perf-3.10.0-957.21.3.el7.x86_64.rpm\npython-perf-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\n\nRed Hat Enterprise Linux Server Optional (v. 7):\n\nppc64:\nkernel-debug-debuginfo-3.10.0-957.21.3.el7.ppc64.rpm\nkernel-debuginfo-3.10.0-957.21.3.el7.ppc64.rpm\nkernel-debuginfo-common-ppc64-3.10.0-957.21.3.el7.ppc64.rpm\nkernel-tools-debuginfo-3.10.0-957.21.3.el7.ppc64.rpm\nkernel-tools-libs-devel-3.10.0-957.21.3.el7.ppc64.rpm\nperf-debuginfo-3.10.0-957.21.3.el7.ppc64.rpm\npython-perf-debuginfo-3.10.0-957.21.3.el7.ppc64.rpm\n\nppc64le:\nkernel-debug-debuginfo-3.10.0-957.21.3.el7.ppc64le.rpm\nkernel-debug-devel-3.10.0-957.21.3.el7.ppc64le.rpm\nkernel-debuginfo-3.10.0-957.21.3.el7.ppc64le.rpm\nkernel-debuginfo-common-ppc64le-3.10.0-957.21.3.el7.ppc64le.rpm\nkernel-tools-debuginfo-3.10.0-957.21.3.el7.ppc64le.rpm\nkernel-tools-libs-devel-3.10.0-957.21.3.el7.ppc64le.rpm\nperf-debuginfo-3.10.0-957.21.3.el7.ppc64le.rpm\npython-perf-debuginfo-3.10.0-957.21.3.el7.ppc64le.rpm\n\nx86_64:\nkernel-debug-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-debuginfo-common-x86_64-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-tools-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-tools-libs-devel-3.10.0-957.21.3.el7.x86_64.rpm\nperf-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\npython-perf-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\n\nRed Hat Enterprise Linux Workstation (v. 7):\n\nSource:\nkernel-3.10.0-957.21.3.el7.src.rpm\n\nnoarch:\nkernel-abi-whitelists-3.10.0-957.21.3.el7.noarch.rpm\nkernel-doc-3.10.0-957.21.3.el7.noarch.rpm\n\nx86_64:\nbpftool-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-debug-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-debug-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-debug-devel-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-debuginfo-common-x86_64-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-devel-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-headers-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-tools-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-tools-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-tools-libs-3.10.0-957.21.3.el7.x86_64.rpm\nperf-3.10.0-957.21.3.el7.x86_64.rpm\nperf-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\npython-perf-3.10.0-957.21.3.el7.x86_64.rpm\npython-perf-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\n\nRed Hat Enterprise Linux Workstation Optional (v. 7):\n\nx86_64:\nkernel-debug-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-debuginfo-common-x86_64-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-tools-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\nkernel-tools-libs-devel-3.10.0-957.21.3.el7.x86_64.rpm\nperf-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\npython-perf-debuginfo-3.10.0-957.21.3.el7.x86_64.rpm\n\nThese packages are GPG signed by Red Hat for security. Our key and\ndetails on how to verify the signature are available from\nhttps://access.redhat.com/security/team/key/\n\n7. References:\n\nhttps://access.redhat.com/security/cve/CVE-2019-11477\nhttps://access.redhat.com/security/cve/CVE-2019-11478\nhttps://access.redhat.com/security/cve/CVE-2019-11479\nhttps://access.redhat.com/security/updates/classification/#important\nhttps://access.redhat.com/security/vulnerabilities/tcpsack\n\n8. Contact:\n\nThe Red Hat security contact is \u003csecalert@redhat.com\u003e. More contact\ndetails at https://access.redhat.com/security/team/contact/\n\nCopyright 2019 Red Hat, Inc. \n-----BEGIN PGP SIGNATURE-----\nVersion: GnuPG v1\n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\nrjP0JW27B5U=rNYS\n-----END PGP SIGNATURE-----\n\n--\nRHSA-announce mailing list\nRHSA-announce@redhat.com\nhttps://www.redhat.com/mailman/listinfo/rhsa-announce\n. Description:\n\nThe kernel-rt packages provide the Real Time Linux Kernel, which enables\nfine-tuning for systems with extremely high determinism requirements. \n\nBug Fix(es):\n\n* kernel-rt: update to the RHEL8.0.z batch#1 source tree (BZ#1704955)\n\n4. 7.5) - ppc64, ppc64le, x86_64\n\n3. These packages include redhat-release-virtualization-host,\novirt-node, and rhev-hypervisor. RHVH features a Cockpit user\ninterface for monitoring the host\u0027s resources and performing administrative\ntasks. # Advisory\n###### ID: NFLX-2019-001\n\n###### Title: Linux and FreeBSD Kernel: Multiple TCP-based remote denial of service vulnerabilities\n\n###### Release Date: 2019-06-17\n\n###### Severity: Critical\n\n### Overview:\n\nNetflix has identified several TCP networking vulnerabilities in FreeBSD and Linux kernels. \n\nThe vulnerabilities specifically relate to the minimum segment size (MSS) and TCP Selective Acknowledgement (SACK) capabilities. The most serious, dubbed _\u201cSACK Panic_,\u201d allows a remotely-triggered kernel panic on recent Linux kernels. \n\nThere are patches that address most of these vulnerabilities. If patches can not be applied, certain mitigations will be effective. We recommend that affected parties enact one of those described below, based on their environment. \n\n__Fix:__ Apply the patch [PATCH_net_1_4.patch](2019-001/PATCH_net_1_4.patch). Additionally, versions of the Linux kernel up to, and including, 4.14 require a second patch [PATCH_net_1a.patch](2019-001/PATCH_net_1a.patch). \n\n__Workaround #1:__ Block connections with a low MSS using one of the supplied [filters](2019-001/block-low-mss/README.md). (The values in the filters are examples. You can apply a higher or lower limit, as appropriate for your environment.) Note that these filters may break legitimate connections which rely on a low MSS. Also, note that this mitigation is only effective if TCP probing is disabled (that is, the `net.ipv4.tcp_mtu_probing` sysctl is set to 0, which appears to be the default value for that sysctl). \n\n__Workaround #2:__ Disable SACK processing (`/proc/sys/net/ipv4/tcp_sack` set to 0). \n\n(Note that either workaround should be sufficient on its own. It is not necessary to apply both workarounds.)\n\n\n### 2: [CVE-2019-11478](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11478): SACK Slowness (Linux \u003c 4.15) or Excess Resource Usage (all Linux versions)\n\n__Description:__ It is possible to send a crafted sequence of SACKs which will fragment the TCP retransmission queue. On Linux kernels prior to 4.15, an attacker may be able to further exploit the fragmented queue to cause an expensive linked-list walk for subsequent SACKs received for that same TCP connection. \n\n__Fix:__ Apply the patch [PATCH_net_2_4.patch](2019-001/PATCH_net_2_4.patch)\n\n__Workaround #1:__ Block connections with a low MSS using one of the supplied [filters](2019-001/block-low-mss/README.md). (The values in the filters are examples. You can apply a higher or lower limit, as appropriate for your environment.) Note that these filters may break legitimate connections which rely on a low MSS. Also, note that this mitigation is only effective if TCP probing is disabled (that is, the `net.ipv4.tcp_mtu_probing` sysctl is set to 0, which appears to be the default value for that sysctl). \n\n__Workaround #2:__ Disable SACK processing (`/proc/sys/net/ipv4/tcp_sack` set to 0). \n\n(Note that either workaround should be sufficient on its own. It is not necessary to apply both workarounds.)\n\n\n### 3: [CVE-2019-5599](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-5599): SACK Slowness (FreeBSD 12 using the RACK TCP Stack)\n\n__Description:__ It is possible to send a crafted sequence of SACKs which will fragment the RACK send map. An attacker may be able to further exploit the fragmented send map to cause an expensive linked-list walk for subsequent SACKs received for that same TCP connection. \n\n__Workaround #1:__ Apply the patch [split_limit.patch](2019-001/split_limit.patch) and set the `net.inet.tcp.rack.split_limit` sysctl to a reasonable value to limit the size of the SACK table. \n\n__Workaround #2:__ Temporarily disable the RACK TCP stack. \n\n(Note that either workaround should be sufficient on its own. It is not necessary to apply both workarounds.)\n\n\n### 4: [CVE-2019-11479](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11479): Excess Resource Consumption Due to Low MSS Values (all Linux versions)\n\n__Description:__ An attacker can force the Linux kernel to segment its responses into multiple TCP segments, each of which contains only 8 bytes of data. This drastically increases the bandwidth required to deliver the same amount of data. Further, it consumes additional resources (CPU and NIC processing power). This attack requires continued effort from the attacker and the impacts will end shortly after the attacker stops sending traffic. \n\n__Fix:__ Two patches [PATCH_net_3_4.patch](2019-001/PATCH_net_3_4.patch) and [PATCH_net_4_4.patch](2019-001/PATCH_net_4_4.patch) add a sysctl which enforces a minimum MSS, set by the `net.ipv4.tcp_min_snd_mss` sysctl. This lets an administrator enforce a minimum MSS appropriate for their applications. \n\n__Workaround:__ Block connections with a low MSS using one of the supplied [filters](2019-001/block-low-mss/README.md). (The values in the filters are examples. You can apply a higher or lower limit, as appropriate for your environment.) Note that these filters may break legitimate connections which rely on a low MSS. Also, note that this mitigation is only effective if TCP probing is disabled (that is, the `net.ipv4.tcp_mtu_probing` sysctl is set to 0, which appears to be the default value for that sysctl). \n\n\n### Note:\nGood system and application coding and configuration practices (limiting write buffers to the necessary level, monitoring connection memory consumption via SO_MEMINFO, and aggressively closing misbehaving connections) can help to limit the impact of attacks against these kinds of vulnerabilities. \n\n\n## Acknowledgments:\nOriginally reported by Jonathan Looney. \n\nWe thank Eric Dumazet for providing Linux fixes and support. \n\nWe thank Bruce Curtis for providing the Linux filters. \n\nWe thank Jonathan Lemon and Alexey Kodanev for helping to improve the Linux patches. \n\nWe gratefully acknowledge the assistance of Tyler Hicks in testing fixes, refining the information about vulnerable versions, and providing assistance during the disclosure process. \n\nBug Fix(es):\n\n* MDS mitigations not enabled on Intel Skylake CPUs (BZ#1713026)\n\n* [RHEL6] md_clear flag missing from /proc/cpuinfo (BZ#1713029)\n\n* RHEL6 kernel does not disable SMT with mds=full,nosmt (BZ#1713044)\n\n4",
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