RLSA-2022:0819

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Import Source
https://storage.googleapis.com/resf-osv-data/RLSA-2022:0819.json
JSON Data
https://api.osv.dev/v1/vulns/RLSA-2022:0819
Related
Published
2022-03-10T14:37:54Z
Modified
2023-02-02T14:12:29.824030Z
Severity
  • 8.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H CVSS Calculator
Summary
Important: kernel-rt security and bug fix update
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: improper initialization of the "flags" member of the new pipe_buffer (CVE-2022-0847)

  • kernel: Use After Free in unix_gc() which could result in a local privilege escalation (CVE-2021-0920)

  • kernel: local privilege escalation by exploiting the fsconfig syscall parameter leads to container breakout (CVE-2021-4154)

  • kernel: possible privileges escalation due to missing TLB flush (CVE-2022-0330)

  • kernel: remote stack overflow via kernel panic on systems using TIPC may lead to DoS (CVE-2022-0435)

  • kernel: cgroups v1 release_agent feature may allow privilege escalation (CVE-2022-0492)

  • kernel: failing usercopy allows for use-after-free exploitation (CVE-2022-22942)

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 symbol '_rtmutexinit' is exported GPL-only in kernel 4.18.0-348.2.1.rt7.132.el85 (BZ#2038423)

  • kernel-rt: update RT source tree to the Rocky Linux-8.5.z3 source tree (BZ#2045589)

References
Credits
    • Rocky Enterprise Software Foundation
    • Red Hat

Affected packages

Rocky Linux:8 / kernel-rt

Package

Name
kernel-rt
Purl
pkg:rpm/rocky-linux/kernel-rt?distro=rocky-linux-8-5-legacy&epoch=0

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0:4.18.0-348.20.1.rt7.150.el8_5