CVE-2023-52494 Affecting kernel-azure-devel package, versions <5.14.21-150500.33.48.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.05% (18th percentile)

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  • Snyk IDSNYK-SLES155-KERNELAZUREDEVEL-6808031
  • published4 May 2024
  • disclosed3 May 2024

Introduced: 3 May 2024

CVE-2023-52494  (opens in a new tab)

How to fix?

Upgrade SLES:15.5 kernel-azure-devel to version 5.14.21-150500.33.48.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-azure-devel package and not the kernel-azure-devel 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:

bus: mhi: host: Add alignment check for event ring read pointer

Though we do check the event ring read pointer by "is_valid_ring_ptr" to make sure it is in the buffer range, but there is another risk the pointer may be not aligned. Since we are expecting event ring elements are 128 bits(struct mhi_ring_element) aligned, an unaligned read pointer could lead to multiple issues like DoS or ring buffer memory corruption.

So add a alignment check for event ring read pointer.

CVSS Scores

version 3.1