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CERTFR-2022-AVI-176
Vulnerability from certfr_avis
De multiples vulnérabilités ont été découvertes dans le noyau Linux d'Ubuntu. Certaines d'entre elles permettent à un attaquant de provoquer une exécution de code arbitraire, un déni de service à distance et une atteinte à l'intégrité des données.
Solution
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
NoneImpacted products
References
| Title | Publication Time | Tags | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "Ubuntu 16.04 ESM",
"product": {
"name": "Ubuntu",
"vendor": {
"name": "Ubuntu",
"scada": false
}
}
},
{
"description": "Ubuntu 18.04 LTS",
"product": {
"name": "Ubuntu",
"vendor": {
"name": "Ubuntu",
"scada": false
}
}
},
{
"description": "Ubuntu 21.10",
"product": {
"name": "Ubuntu",
"vendor": {
"name": "Ubuntu",
"scada": false
}
}
},
{
"description": "Ubuntu 20.04 LTS",
"product": {
"name": "Ubuntu",
"vendor": {
"name": "Ubuntu",
"scada": false
}
}
},
{
"description": "Ubuntu 14.04 ESM",
"product": {
"name": "Ubuntu",
"vendor": {
"name": "Ubuntu",
"scada": false
}
}
}
],
"affected_systems_content": null,
"content": "## Solution\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des\ncorrectifs (cf. section Documentation).\n",
"cves": [
{
"name": "CVE-2021-45485",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-45485"
},
{
"name": "CVE-2021-44879",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-44879"
},
{
"name": "CVE-2021-33034",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-33034"
},
{
"name": "CVE-2021-34693",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-34693"
},
{
"name": "CVE-2021-4202",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-4202"
},
{
"name": "CVE-2021-3679",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-3679"
},
{
"name": "CVE-2021-3483",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-3483"
},
{
"name": "CVE-2021-38204",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-38204"
},
{
"name": "CVE-2021-28711",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-28711"
},
{
"name": "CVE-2021-43975",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-43975"
},
{
"name": "CVE-2021-28713",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-28713"
},
{
"name": "CVE-2021-4083",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-4083"
},
{
"name": "CVE-2022-0330",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-0330"
},
{
"name": "CVE-2021-28712",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-28712"
},
{
"name": "CVE-2021-0129",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-0129"
},
{
"name": "CVE-2022-22942",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-22942"
},
{
"name": "CVE-2021-4155",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-4155"
},
{
"name": "CVE-2021-3564",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-3564"
},
{
"name": "CVE-2021-43976",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-43976"
},
{
"name": "CVE-2020-26558",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-26558"
},
{
"name": "CVE-2021-22600",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-22600"
},
{
"name": "CVE-2022-24448",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-24448"
},
{
"name": "CVE-2022-0492",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-0492"
},
{
"name": "CVE-2021-39685",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-39685"
},
{
"name": "CVE-2020-26147",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-26147"
},
{
"name": "CVE-2022-0435",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-0435"
},
{
"name": "CVE-2021-3612",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-3612"
},
{
"name": "CVE-2021-28714",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-28714"
},
{
"name": "CVE-2021-42008",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-42008"
},
{
"name": "CVE-2021-28972",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-28972"
},
{
"name": "CVE-2021-28715",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-28715"
},
{
"name": "CVE-2022-24959",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-24959"
}
],
"initial_release_date": "2022-02-23T00:00:00",
"last_revision_date": "2022-02-23T00:00:00",
"links": [],
"reference": "CERTFR-2022-AVI-176",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2022-02-23T00:00:00.000000"
}
],
"risks": [
{
"description": "D\u00e9ni de service \u00e0 distance"
},
{
"description": "Atteinte \u00e0 l\u0027int\u00e9grit\u00e9 des donn\u00e9es"
},
{
"description": "Ex\u00e9cution de code arbitraire"
},
{
"description": "Atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es"
},
{
"description": "\u00c9l\u00e9vation de privil\u00e8ges"
}
],
"summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans le noyau Linux\nd\u0027Ubuntu. Certaines d\u0027entre elles permettent \u00e0 un attaquant de provoquer\nune ex\u00e9cution de code arbitraire, un d\u00e9ni de service \u00e0 distance et une\natteinte \u00e0 l\u0027int\u00e9grit\u00e9 des donn\u00e9es.\n",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans le noyau Linux d\u0027Ubuntu",
"vendor_advisories": [
{
"published_at": null,
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-5302-1 du 22 f\u00e9vrier 2022",
"url": "https://ubuntu.com/security/notices/USN-5302-1"
},
{
"published_at": null,
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-5295-2 du 22 f\u00e9vrier 2022",
"url": "https://ubuntu.com/security/notices/USN-5295-2"
},
{
"published_at": null,
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-5298-1 du 22 f\u00e9vrier 2022",
"url": "https://ubuntu.com/security/notices/USN-5298-1"
},
{
"published_at": null,
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-5297-1 du 22 f\u00e9vrier 2022",
"url": "https://ubuntu.com/security/notices/USN-5297-1"
},
{
"published_at": null,
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-5294-2 du 22 f\u00e9vrier 2022",
"url": "https://ubuntu.com/security/notices/USN-5294-2"
},
{
"published_at": null,
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-5299-1 du 22 f\u00e9vrier 2022",
"url": "https://ubuntu.com/security/notices/USN-5299-1"
}
]
}
CVE-2021-44879 (GCVE-0-2021-44879)
Vulnerability from cvelistv5
Published
2022-02-13 00:00
Modified
2024-08-04 04:32
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
In gc_data_segment in fs/f2fs/gc.c in the Linux kernel before 5.16.3, special files are not considered, leading to a move_data_page NULL pointer dereference.
References
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"url": "https://bugzilla.kernel.org/show_bug.cgi?id=215231"
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{
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CVE-2020-26558 (GCVE-0-2020-26558)
Vulnerability from cvelistv5
Published
2021-05-24 17:22
Modified
2025-11-04 19:12
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
Bluetooth LE and BR/EDR secure pairing in Bluetooth Core Specification 2.1 through 5.2 may permit a nearby man-in-the-middle attacker to identify the Passkey used during pairing (in the Passkey authentication procedure) by reflection of the public key and the authentication evidence of the initiating device, potentially permitting this attacker to complete authenticated pairing with the responding device using the correct Passkey for the pairing session. The attack methodology determines the Passkey value one bit at a time.
References
| URL | Tags | |||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||||||||
{
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},
"references": [
{
"tags": [
"x_refsource_MISC",
"x_transferred"
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"url": "https://www.bluetooth.com/learn-about-bluetooth/key-attributes/bluetooth-security/reporting-security/"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://kb.cert.org/vuls/id/799380"
},
{
"name": "FEDORA-2021-a35b44fd9f",
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"vendor-advisory",
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],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NSS6CTGE4UGTJLCOZOASDR3T3SLL6QJZ/"
},
{
"tags": [
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"url": "https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00520.html"
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],
"url": "https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00517.html"
},
{
"name": "[debian-lts-announce] 20210623 [SECURITY] [DLA 2689-1] linux security update",
"tags": [
"mailing-list",
"x_refsource_MLIST",
"x_transferred"
],
"url": "https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html"
},
{
"name": "[debian-lts-announce] 20210623 [SECURITY] [DLA 2690-1] linux-4.19 security update",
"tags": [
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"x_refsource_MLIST",
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],
"url": "https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html"
},
{
"name": "[debian-lts-announce] 20210626 [SECURITY] [DLA 2692-1] bluez security update",
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"url": "https://lists.debian.org/debian-lts-announce/2021/06/msg00022.html"
},
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},
{
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"url": "https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00520.html"
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"url": "https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00517.html"
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"url": "https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html"
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"tags": [
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"url": "https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html"
},
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"url": "https://lists.debian.org/debian-lts-announce/2021/06/msg00022.html"
},
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"tags": [
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],
"url": "https://www.debian.org/security/2021/dsa-4951"
},
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],
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}
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CVE-2022-0330 (GCVE-0-2022-0330)
Vulnerability from cvelistv5
Published
2022-03-25 00:00
Modified
2024-08-02 23:25
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
A random memory access flaw was found in the Linux kernel's GPU i915 kernel driver functionality in the way a user may run malicious code on the GPU. This flaw allows a local user to crash the system or escalate their privileges on the system.
References
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CVE-2021-28712 (GCVE-0-2021-28712)
Vulnerability from cvelistv5
Published
2022-01-05 16:10
Modified
2024-08-03 21:55
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- unknown
Summary
Rogue backends can cause DoS of guests via high frequency events T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Xen offers the ability to run PV backends in regular unprivileged guests, typically referred to as "driver domains". Running PV backends in driver domains has one primary security advantage: if a driver domain gets compromised, it doesn't have the privileges to take over the system. However, a malicious driver domain could try to attack other guests via sending events at a high frequency leading to a Denial of Service in the guest due to trying to service interrupts for elongated amounts of time. There are three affected backends: * blkfront patch 1, CVE-2021-28711 * netfront patch 2, CVE-2021-28712 * hvc_xen (console) patch 3, CVE-2021-28713
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CVE-2021-33034 (GCVE-0-2021-33034)
Vulnerability from cvelistv5
Published
2021-05-14 22:57
Modified
2024-08-03 23:42
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
In the Linux kernel before 5.12.4, net/bluetooth/hci_event.c has a use-after-free when destroying an hci_chan, aka CID-5c4c8c954409. This leads to writing an arbitrary value.
References
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CVE-2021-39685 (GCVE-0-2021-39685)
Vulnerability from cvelistv5
Published
2022-03-16 14:04
Modified
2024-08-04 02:13
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- Elevation of privilege
Summary
In various setup methods of the USB gadget subsystem, there is a possible out of bounds write due to an incorrect flag check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-210292376References: Upstream kernel
References
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CVE-2021-34693 (GCVE-0-2021-34693)
Vulnerability from cvelistv5
Published
2021-06-14 00:00
Modified
2024-08-04 00:19
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
net/can/bcm.c in the Linux kernel through 5.12.10 allows local users to obtain sensitive information from kernel stack memory because parts of a data structure are uninitialized.
References
| URL | Tags | ||||||||||||||||||||||
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CVE-2021-4083 (GCVE-0-2021-4083)
Vulnerability from cvelistv5
Published
2022-01-18 16:51
Modified
2024-08-03 17:16
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
A read-after-free memory flaw was found in the Linux kernel's garbage collection for Unix domain socket file handlers in the way users call close() and fget() simultaneously and can potentially trigger a race condition. This flaw allows a local user to crash the system or escalate their privileges on the system. This flaw affects Linux kernel versions prior to 5.16-rc4.
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| URL | Tags | ||||||||||||||||||||||
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CVE-2021-28711 (GCVE-0-2021-28711)
Vulnerability from cvelistv5
Published
2022-01-05 16:10
Modified
2024-08-03 21:47
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- unknown
Summary
Rogue backends can cause DoS of guests via high frequency events T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Xen offers the ability to run PV backends in regular unprivileged guests, typically referred to as "driver domains". Running PV backends in driver domains has one primary security advantage: if a driver domain gets compromised, it doesn't have the privileges to take over the system. However, a malicious driver domain could try to attack other guests via sending events at a high frequency leading to a Denial of Service in the guest due to trying to service interrupts for elongated amounts of time. There are three affected backends: * blkfront patch 1, CVE-2021-28711 * netfront patch 2, CVE-2021-28712 * hvc_xen (console) patch 3, CVE-2021-28713
References
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CVE-2021-3564 (GCVE-0-2021-3564)
Vulnerability from cvelistv5
Published
2021-06-08 11:59
Modified
2024-08-03 17:01
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
A flaw double-free memory corruption in the Linux kernel HCI device initialization subsystem was found in the way user attach malicious HCI TTY Bluetooth device. A local user could use this flaw to crash the system. This flaw affects all the Linux kernel versions starting from 3.13.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
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CVE-2021-0129 (GCVE-0-2021-0129)
Vulnerability from cvelistv5
Published
2021-06-09 19:50
Modified
2024-08-03 15:32
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- information disclosure
Summary
Improper access control in BlueZ may allow an authenticated user to potentially enable information disclosure via adjacent access.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
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CVE-2021-28972 (GCVE-0-2021-28972)
Vulnerability from cvelistv5
Published
2021-03-22 16:53
Modified
2024-08-03 21:55
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
In drivers/pci/hotplug/rpadlpar_sysfs.c in the Linux kernel through 5.11.8, the RPA PCI Hotplug driver has a user-tolerable buffer overflow when writing a new device name to the driver from userspace, allowing userspace to write data to the kernel stack frame directly. This occurs because add_slot_store and remove_slot_store mishandle drc_name '\0' termination, aka CID-cc7a0bb058b8.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
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CVE-2021-42008 (GCVE-0-2021-42008)
Vulnerability from cvelistv5
Published
2021-10-04 23:17
Modified
2024-08-04 03:22
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
The decode_data function in drivers/net/hamradio/6pack.c in the Linux kernel before 5.13.13 has a slab out-of-bounds write. Input from a process that has the CAP_NET_ADMIN capability can lead to root access.
References
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CVE-2021-38204 (GCVE-0-2021-38204)
Vulnerability from cvelistv5
Published
2021-08-08 19:25
Modified
2024-08-04 01:37
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
drivers/usb/host/max3421-hcd.c in the Linux kernel before 5.13.6 allows physically proximate attackers to cause a denial of service (use-after-free and panic) by removing a MAX-3421 USB device in certain situations.
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CVE-2022-22942 (GCVE-0-2022-22942)
Vulnerability from cvelistv5
Published
2023-12-13 08:16
Modified
2024-08-03 03:28
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- Privilege escalation
Summary
The vmwgfx driver contains a local privilege escalation vulnerability that allows unprivileged users to gain access to files opened by other processes on the system through a dangling 'file' pointer.
References
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CVE-2021-22600 (GCVE-0-2021-22600)
Vulnerability from cvelistv5
Published
2022-01-26 00:00
Modified
2025-10-21 23:15
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-415 - Double Free
Summary
A double free bug in packet_set_ring() in net/packet/af_packet.c can be exploited by a local user through crafted syscalls to escalate privileges or deny service. We recommend upgrading kernel past the effected versions or rebuilding past ec6af094ea28f0f2dda1a6a33b14cd57e36a9755
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux Kernel | Kernel |
Version: unspecified < 5.4.168 Version: unspecified < 5.10.88 Version: unspecified < 5.15.11 Version: unspecified < 5.16-rc6 |
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CVE-2021-28714 (GCVE-0-2021-28714)
Vulnerability from cvelistv5
Published
2022-01-06 17:06
Modified
2024-08-03 21:55
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- unknown
Summary
Guest can force Linux netback driver to hog large amounts of kernel memory T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Incoming data packets for a guest in the Linux kernel's netback driver are buffered until the guest is ready to process them. There are some measures taken for avoiding to pile up too much data, but those can be bypassed by the guest: There is a timeout how long the client side of an interface can stop consuming new packets before it is assumed to have stalled, but this timeout is rather long (60 seconds by default). Using a UDP connection on a fast interface can easily accumulate gigabytes of data in that time. (CVE-2021-28715) The timeout could even never trigger if the guest manages to have only one free slot in its RX queue ring page and the next package would require more than one free slot, which may be the case when using GSO, XDP, or software hashing. (CVE-2021-28714)
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CVE-2022-24448 (GCVE-0-2022-24448)
Vulnerability from cvelistv5
Published
2022-02-04 19:45
Modified
2024-08-03 04:13
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in fs/nfs/dir.c in the Linux kernel before 5.16.5. If an application sets the O_DIRECTORY flag, and tries to open a regular file, nfs_atomic_open() performs a regular lookup. If a regular file is found, ENOTDIR should occur, but the server instead returns uninitialized data in the file descriptor.
References
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CVE-2021-3612 (GCVE-0-2021-3612)
Vulnerability from cvelistv5
Published
2021-07-09 10:33
Modified
2024-08-03 17:01
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-20 - ->CWE-119
Summary
An out-of-bounds memory write flaw was found in the Linux kernel's joystick devices subsystem in versions before 5.9-rc1, in the way the user calls ioctl JSIOCSBTNMAP. This flaw allows a local user to crash the system or possibly escalate their privileges on the system. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
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CVE-2020-26147 (GCVE-0-2020-26147)
Vulnerability from cvelistv5
Published
2021-05-11 19:40
Modified
2024-08-04 15:49
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in the Linux kernel 5.8.9. The WEP, WPA, WPA2, and WPA3 implementations reassemble fragments even though some of them were sent in plaintext. This vulnerability can be abused to inject packets and/or exfiltrate selected fragments when another device sends fragmented frames and the WEP, CCMP, or GCMP data-confidentiality protocol is used.
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CVE-2021-4202 (GCVE-0-2021-4202)
Vulnerability from cvelistv5
Published
2022-03-25 18:02
Modified
2024-08-03 17:16
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-362 - ->CWE-416
Summary
A use-after-free flaw was found in nci_request in net/nfc/nci/core.c in NFC Controller Interface (NCI) in the Linux kernel. This flaw could allow a local attacker with user privileges to cause a data race problem while the device is getting removed, leading to a privilege escalation problem.
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| URL | Tags | |||||||||||||||||||||||||
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CVE-2021-28713 (GCVE-0-2021-28713)
Vulnerability from cvelistv5
Published
2022-01-05 16:10
Modified
2024-08-03 21:55
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- unknown
Summary
Rogue backends can cause DoS of guests via high frequency events T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Xen offers the ability to run PV backends in regular unprivileged guests, typically referred to as "driver domains". Running PV backends in driver domains has one primary security advantage: if a driver domain gets compromised, it doesn't have the privileges to take over the system. However, a malicious driver domain could try to attack other guests via sending events at a high frequency leading to a Denial of Service in the guest due to trying to service interrupts for elongated amounts of time. There are three affected backends: * blkfront patch 1, CVE-2021-28711 * netfront patch 2, CVE-2021-28712 * hvc_xen (console) patch 3, CVE-2021-28713
References
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CVE-2021-43976 (GCVE-0-2021-43976)
Vulnerability from cvelistv5
Published
2021-11-17 00:00
Modified
2024-08-04 04:10
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
In the Linux kernel through 5.15.2, mwifiex_usb_recv in drivers/net/wireless/marvell/mwifiex/usb.c allows an attacker (who can connect a crafted USB device) to cause a denial of service (skb_over_panic).
References
| URL | Tags | |||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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CVE-2021-3679 (GCVE-0-2021-3679)
Vulnerability from cvelistv5
Published
2021-08-05 19:54
Modified
2024-08-03 17:01
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
A lack of CPU resource in the Linux kernel tracing module functionality in versions prior to 5.14-rc3 was found in the way user uses trace ring buffer in a specific way. Only privileged local users (with CAP_SYS_ADMIN capability) could use this flaw to starve the resources causing denial of service.
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CVE-2021-45485 (GCVE-0-2021-45485)
Vulnerability from cvelistv5
Published
2021-12-25 01:05
Modified
2024-08-04 04:39
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
In the IPv6 implementation in the Linux kernel before 5.13.3, net/ipv6/output_core.c has an information leak because of certain use of a hash table which, although big, doesn't properly consider that IPv6-based attackers can typically choose among many IPv6 source addresses.
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CVE-2022-0492 (GCVE-0-2022-0492)
Vulnerability from cvelistv5
Published
2022-03-03 00:00
Modified
2024-08-02 23:32
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
A vulnerability was found in the Linux kernel’s cgroup_release_agent_write in the kernel/cgroup/cgroup-v1.c function. This flaw, under certain circumstances, allows the use of the cgroups v1 release_agent feature to escalate privileges and bypass the namespace isolation unexpectedly.
References
| URL | Tags | |||||||||||||||||||||||||||||||
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CVE-2021-3483 (GCVE-0-2021-3483)
Vulnerability from cvelistv5
Published
2021-05-17 11:25
Modified
2024-08-03 16:53
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
A flaw was found in the Nosy driver in the Linux kernel. This issue allows a device to be inserted twice into a doubly-linked list, leading to a use-after-free when one of these devices is removed. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability. Versions before kernel 5.12-rc6 are affected
References
| URL | Tags | ||||||||||||||||
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CVE-2021-43975 (GCVE-0-2021-43975)
Vulnerability from cvelistv5
Published
2021-11-17 16:32
Modified
2024-08-04 04:10
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
In the Linux kernel through 5.15.2, hw_atl_utils_fw_rpc_wait in drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.c allows an attacker (who can introduce a crafted device) to trigger an out-of-bounds write via a crafted length value.
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CVE-2021-28715 (GCVE-0-2021-28715)
Vulnerability from cvelistv5
Published
2022-01-06 17:06
Modified
2025-05-22 18:34
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- unknown
Summary
Guest can force Linux netback driver to hog large amounts of kernel memory T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Incoming data packets for a guest in the Linux kernel's netback driver are buffered until the guest is ready to process them. There are some measures taken for avoiding to pile up too much data, but those can be bypassed by the guest: There is a timeout how long the client side of an interface can stop consuming new packets before it is assumed to have stalled, but this timeout is rather long (60 seconds by default). Using a UDP connection on a fast interface can easily accumulate gigabytes of data in that time. (CVE-2021-28715) The timeout could even never trigger if the guest manages to have only one free slot in its RX queue ring page and the next package would require more than one free slot, which may be the case when using GSO, XDP, or software hashing. (CVE-2021-28714)
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"value": "Guest can force Linux netback driver to hog large amounts of kernel memory T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Incoming data packets for a guest in the Linux kernel\u0027s netback driver are buffered until the guest is ready to process them. There are some measures taken for avoiding to pile up too much data, but those can be bypassed by the guest: There is a timeout how long the client side of an interface can stop consuming new packets before it is assumed to have stalled, but this timeout is rather long (60 seconds by default). Using a UDP connection on a fast interface can easily accumulate gigabytes of data in that time. (CVE-2021-28715) The timeout could even never trigger if the guest manages to have only one free slot in its RX queue ring page and the next package would require more than one free slot, which may be the case when using GSO, XDP, or software hashing. (CVE-2021-28714)"
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CVE-2022-24959 (GCVE-0-2022-24959)
Vulnerability from cvelistv5
Published
2022-02-11 04:21
Modified
2024-08-03 04:29
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in the Linux kernel before 5.16.5. There is a memory leak in yam_siocdevprivate in drivers/net/hamradio/yam.c.
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CVE-2022-0435 (GCVE-0-2022-0435)
Vulnerability from cvelistv5
Published
2022-03-25 00:00
Modified
2024-08-02 23:25
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
A stack overflow flaw was found in the Linux kernel's TIPC protocol functionality in the way a user sends a packet with malicious content where the number of domain member nodes is higher than the 64 allowed. This flaw allows a remote user to crash the system or possibly escalate their privileges if they have access to the TIPC network.
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CVE-2021-4155 (GCVE-0-2021-4155)
Vulnerability from cvelistv5
Published
2022-08-24 15:10
Modified
2024-08-03 17:16
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-131 - - Incorrect Calculation of Buffer Size
Summary
A data leak flaw was found in the way XFS_IOC_ALLOCSP IOCTL in the XFS filesystem allowed for size increase of files with unaligned size. A local attacker could use this flaw to leak data on the XFS filesystem otherwise not accessible to them.
References
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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