CVE-2023-52576 Affecting kernel-livepatch-5_14_21-150500_13_47-rt package, versions <1-150500.11.3.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.05% (18th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-SLES155-KERNELLIVEPATCH514211505001347RT-6729622
  • published30 Apr 2024
  • disclosed29 Apr 2024

Introduced: 29 Apr 2024

CVE-2023-52576  (opens in a new tab)

How to fix?

Upgrade SLES:15.5 kernel-livepatch-5_14_21-150500_13_47-rt to version 1-150500.11.3.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-livepatch-5_14_21-150500_13_47-rt package and not the kernel-livepatch-5_14_21-150500_13_47-rt package as distributed by SLES. See How to fix? for SLES:15.5 relevant fixed versions and status.

In the Linux kernel, the following vulnerability has been resolved:

x86/mm, kexec, ima: Use memblock_free_late() from ima_free_kexec_buffer()

The code calling ima_free_kexec_buffer() runs long after the memblock allocator has already been torn down, potentially resulting in a use after free in memblock_isolate_range().

With KASAN or KFENCE, this use after free will result in a BUG from the idle task, and a subsequent kernel panic.

Switch ima_free_kexec_buffer() over to memblock_free_late() to avoid that bug.

CVSS Scores

version 3.1