rhsa-2022_0622
Vulnerability from csaf_redhat
Published
2022-02-22 17:02
Modified
2024-11-06 00:31
Summary
Red Hat Security Advisory: kernel-rt security and bug fix update
Notes
Topic
An update for kernel-rt 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.
Details
The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.
Security Fix(es):
* kernel: use after free in eventpoll.c may lead to escalation of privilege (CVE-2020-0466)
* kernel: Use After Free in unix_gc() which could result in a local privilege escalation (CVE-2021-0920)
* kernel: xfs: raw block device data leak in XFS_IOC_ALLOCSP IOCTL (CVE-2021-4155)
* kernel: possible privileges escalation due to missing TLB flush (CVE-2022-0330)
* kernel: failing usercopy allows for use-after-free exploitation (CVE-2022-22942)
* kernel: out of bounds write in hid-multitouch.c may lead to escalation of privilege (CVE-2020-0465)
* kernel: double free in bluetooth subsystem when the HCI device initialization fails (CVE-2021-3564)
* kernel: use-after-free in function hci_sock_bound_ioctl() (CVE-2021-3573)
* kernel: possible use-after-free in bluetooth module (CVE-2021-3752)
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.
Bug Fix(es):
* kernel-rt: update to the latest RHEL7.9.z12 source tree (BZ#2039101)
Terms of Use
This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
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"text": "A flaw was found in the Linux kernel\u2019s multi-touch input system. An out-of-bounds write triggered by a use-after-free issue could lead to memory corruption or possible privilege escalation. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.",
"title": "Vulnerability description"
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"category": "summary",
"text": "kernel: out of bounds write in hid-multitouch.c may lead to escalation of privilege",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
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"text": "kernel: use after free in eventpoll.c may lead to escalation of privilege",
"title": "Vulnerability summary"
},
{
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"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
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"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: Use After Free in unix_gc() which could result in a local privilege escalation",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
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"text": "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.",
"title": "Vulnerability description"
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{
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"text": "kernel: double free in bluetooth subsystem when the HCI device initialization fails",
"title": "Vulnerability summary"
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"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
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"title": "kernel: possible use-after-free in bluetooth module"
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{
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"organization": "Virtuozzo Kernel team"
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"name": "Incorrect Calculation of Buffer Size"
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"discovery_date": "2021-12-18T00:00:00+00:00",
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"text": "2034813"
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{
"category": "description",
"text": "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.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: xfs: raw block device data leak in XFS_IOC_ALLOCSP IOCTL",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
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"title": "kernel: failing usercopy allows for use-after-free exploitation"
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}
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- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- 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.