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CERTFR-2022-AVI-043
Vulnerability from certfr_avis
De multiples vulnérabilités ont été découvertes dans le noyau Linux de SUSE. Certaines d'entre elles permettent à un attaquant de provoquer un problème de sécurité non spécifié par l'éditeur, un déni de service et un contournement de la politique de sécurité.
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": "SUSE MicroOS 5.1",
"product": {
"name": "N/A",
"vendor": {
"name": "SUSE",
"scada": false
}
}
},
{
"description": "SUSE Linux Enterprise Module for Realtime 15-SP3",
"product": {
"name": "N/A",
"vendor": {
"name": "SUSE",
"scada": false
}
}
},
{
"description": "SUSE Linux Enterprise Server 12-SP5",
"product": {
"name": "SUSE Linux Enterprise Server",
"vendor": {
"name": "SUSE",
"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-2019-15126",
"url": "https://www.cve.org/CVERecord?id=CVE-2019-15126"
},
{
"name": "CVE-2018-25020",
"url": "https://www.cve.org/CVERecord?id=CVE-2018-25020"
},
{
"name": "CVE-2020-24504",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-24504"
},
{
"name": "CVE-2021-28711",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-28711"
},
{
"name": "CVE-2021-4001",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-4001"
},
{
"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-2021-4002",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-4002"
},
{
"name": "CVE-2021-4083",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-4083"
},
{
"name": "CVE-2021-45486",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-45486"
},
{
"name": "CVE-2021-28712",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-28712"
},
{
"name": "CVE-2021-33098",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-33098"
},
{
"name": "CVE-2020-27820",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-27820"
},
{
"name": "CVE-2021-43976",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-43976"
},
{
"name": "CVE-2021-0935",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-0935"
},
{
"name": "CVE-2021-0920",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-0920"
},
{
"name": "CVE-2021-4149",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-4149"
},
{
"name": "CVE-2021-28714",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-28714"
},
{
"name": "CVE-2021-28715",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-28715"
}
],
"initial_release_date": "2022-01-17T00:00:00",
"last_revision_date": "2022-01-17T00:00:00",
"links": [],
"reference": "CERTFR-2022-AVI-043",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2022-01-17T00:00:00.000000"
}
],
"risks": [
{
"description": "Atteinte \u00e0 l\u0027int\u00e9grit\u00e9 des donn\u00e9es"
},
{
"description": "Non sp\u00e9cifi\u00e9 par l\u0027\u00e9diteur"
},
{
"description": "D\u00e9ni de service"
},
{
"description": "Contournement de la politique de s\u00e9curit\u00e9"
},
{
"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 de\nSUSE. Certaines d\u0027entre elles permettent \u00e0 un attaquant de provoquer un\nprobl\u00e8me de s\u00e9curit\u00e9 non sp\u00e9cifi\u00e9 par l\u0027\u00e9diteur, un d\u00e9ni de service et\nun contournement de la politique de s\u00e9curit\u00e9.\n",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans le noyau Linux de SUSE",
"vendor_advisories": [
{
"published_at": null,
"title": "Bulletin de s\u00e9curit\u00e9 SUSE 20220080-1 du 14 janvier 2022",
"url": "https://www.suse.com/support/update/announcement/2022/suse-su-20220080-1/"
},
{
"published_at": null,
"title": "Bulletin de s\u00e9curit\u00e9 SUSE 20220079-1 du 14 janvier 2022",
"url": "https://www.suse.com/support/update/announcement/2022/suse-su-20220079-1/"
}
]
}
CVE-2020-24504 (GCVE-0-2020-24504)
Vulnerability from cvelistv5
Published
2021-02-17 13:37
Modified
2024-08-04 15:12
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- denial of service
Summary
Uncontrolled resource consumption in some Intel(R) Ethernet E810 Adapter drivers for Linux before version 1.0.4 may allow an authenticated user to potentially enable denial of service via local access.
References
| URL | Tags | |
|---|---|---|
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| n/a | Intel(R) Ethernet E810 Adapter drivers for Linux |
Version: before version 1.0.4 |
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CVE-2019-15126 (GCVE-0-2019-15126)
Vulnerability from cvelistv5
Published
2020-02-05 16:17
Modified
2024-08-05 00:34
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered on Broadcom Wi-Fi client devices. Specifically timed and handcrafted traffic can cause internal errors (related to state transitions) in a WLAN device that lead to improper layer 2 Wi-Fi encryption with a consequent possibility of information disclosure over the air for a discrete set of traffic, a different vulnerability than CVE-2019-9500, CVE-2019-9501, CVE-2019-9502, and CVE-2019-9503.
References
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CVE-2021-4149 (GCVE-0-2021-4149)
Vulnerability from cvelistv5
Published
2022-03-23 19:46
Modified
2024-08-03 17:16
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
A vulnerability was found in btrfs_alloc_tree_b in fs/btrfs/extent-tree.c in the Linux kernel due to an improper lock operation in btrfs. In this flaw, a user with a local privilege may cause a denial of service (DOS) due to a deadlock problem.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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CVE-2021-4001 (GCVE-0-2021-4001)
Vulnerability from cvelistv5
Published
2022-01-21 00:00
Modified
2024-08-03 17:16
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
A race condition was found in the Linux kernel's ebpf verifier between bpf_map_update_elem and bpf_map_freeze due to a missing lock in kernel/bpf/syscall.c. In this flaw, a local user with a special privilege (cap_sys_admin or cap_bpf) can modify the frozen mapped address space. This flaw affects kernel versions prior to 5.16 rc2.
References
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CVE-2021-33098 (GCVE-0-2021-33098)
Vulnerability from cvelistv5
Published
2021-11-17 19:12
Modified
2024-08-03 23:42
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- denial of service
Summary
Improper input validation in the Intel(R) Ethernet ixgbe driver for Linux before version 3.17.3 may allow an authenticated user to potentially enable denial of service via local access.
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| n/a | Intel(R) Ethernet ixgbe driver for Linux |
Version: before version 3.17.3 |
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CVE-2020-27820 (GCVE-0-2020-27820)
Vulnerability from cvelistv5
Published
2021-11-02 23:26
Modified
2024-08-04 16:25
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
A vulnerability was found in Linux kernel, where a use-after-frees in nouveau's postclose() handler could happen if removing device (that is not common to remove video card physically without power-off, but same happens if "unbind" the driver).
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.
References
| 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
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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-2018-25020 (GCVE-0-2018-25020)
Vulnerability from cvelistv5
Published
2021-12-08 04:47
Modified
2024-08-05 12:26
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
The BPF subsystem in the Linux kernel before 4.17 mishandles situations with a long jump over an instruction sequence where inner instructions require substantial expansions into multiple BPF instructions, leading to an overflow. This affects kernel/bpf/core.c and net/core/filter.c.
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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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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
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CVE-2021-0920 (GCVE-0-2021-0920)
Vulnerability from cvelistv5
Published
2021-12-15 18:05
Modified
2025-10-21 23:15
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- Elevation of privilege
Summary
In unix_scm_to_skb of af_unix.c, there is a possible use after free bug due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-196926917References: Upstream kernel
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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-2021-4083 (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": "https://lists.debian.org/debian-lts-announce/2022/03/msg00011.html"
},
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"name": "[debian-lts-announce] 20220309 [SECURITY] [DLA 2941-1] linux-4.19 security update",
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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-2021-28714 (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)
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
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CVE-2021-4002 (GCVE-0-2021-4002)
Vulnerability from cvelistv5
Published
2022-03-03 21:42
Modified
2024-08-03 17:16
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
A memory leak flaw in the Linux kernel's hugetlbfs memory usage was found in the way the user maps some regions of memory twice using shmget() which are aligned to PUD alignment with the fault of some of the memory pages. A local user could use this flaw to get unauthorized access to some data.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
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CVE-2021-0935 (GCVE-0-2021-0935)
Vulnerability from cvelistv5
Published
2021-10-25 13:20
Modified
2024-08-03 15:55
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- Elevation of privilege
Summary
In ip6_xmit of ip6_output.c, there is a possible out of bounds write due to a use after free. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-168607263References: Upstream kernel
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CVE-2021-45486 (GCVE-0-2021-45486)
Vulnerability from cvelistv5
Published
2021-12-25 01:04
Modified
2024-08-04 04:39
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
In the IPv4 implementation in the Linux kernel before 5.12.4, net/ipv4/route.c has an information leak because the hash table is very small.
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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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