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Alma Linux: CVE-2023-3812: Important: kernel security and bug fix update (ALSA-2023-7549)

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Alma Linux: CVE-2023-3812: Important: kernel security and bug fix update (ALSA-2023-7549)

Severity
7
CVSS
(AV:L/AC:L/Au:S/C:C/I:C/A:C)
Published
07/24/2023
Created
12/05/2023
Added
12/04/2023
Modified
01/28/2025

Description

An out-of-bounds memory access flaw was found in the Linux kernel’s TUN/TAP device driver functionality in how a user generates a malicious (too big) networking packet when napi frags is enabled. This flaw allows a local user to crash or potentially escalate their privileges on the system.

Solution(s)

  • alma-upgrade-bpftool
  • alma-upgrade-kernel
  • alma-upgrade-kernel-abi-stablelists
  • alma-upgrade-kernel-core
  • alma-upgrade-kernel-cross-headers
  • alma-upgrade-kernel-debug
  • alma-upgrade-kernel-debug-core
  • alma-upgrade-kernel-debug-devel
  • alma-upgrade-kernel-debug-modules
  • alma-upgrade-kernel-debug-modules-extra
  • alma-upgrade-kernel-devel
  • alma-upgrade-kernel-doc
  • alma-upgrade-kernel-modules
  • alma-upgrade-kernel-modules-extra
  • alma-upgrade-kernel-tools
  • alma-upgrade-kernel-tools-libs
  • alma-upgrade-kernel-tools-libs-devel
  • alma-upgrade-kernel-zfcpdump
  • alma-upgrade-kernel-zfcpdump-core
  • alma-upgrade-kernel-zfcpdump-devel
  • alma-upgrade-kernel-zfcpdump-modules
  • alma-upgrade-kernel-zfcpdump-modules-extra
  • alma-upgrade-perf
  • alma-upgrade-python3-perf

References

  • https://attackerkb.com/topics/cve-2023-3812
  • CVE - 2023-3812
  • https://errata.almalinux.org/8/ALSA-2023-7549.html
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