CVE-2023-53320 Affecting kernel-obs-build package, versions <5.14.21-150500.55.124.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.02% (5th percentile)

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  • Snyk IDSNYK-SLES155-KERNELOBSBUILD-13611910
  • published17 Oct 2025
  • disclosed16 Oct 2025

Introduced: 16 Oct 2025

NewCVE-2023-53320  (opens in a new tab)

How to fix?

Upgrade SLES:15.5 kernel-obs-build to version 5.14.21-150500.55.124.1 or higher.

NVD Description

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

scsi: mpi3mr: Fix issues in mpi3mr_get_all_tgt_info()

The function mpi3mr_get_all_tgt_info() has four issues:

  1. It calculates valid entry length in alltgt_info assuming the header part of the struct mpi3mr_device_map_info would equal to sizeof(u32). The correct size is sizeof(u64).

  2. When it calculates the valid entry length kern_entrylen, it excludes one entry by subtracting 1 from num_devices.

  3. It copies num_device by calling memcpy(). Substitution is enough.

  4. It does not specify the calculated length to sg_copy_from_buffer(). Instead, it specifies the payload length which is larger than the alltgt_info size. It causes "BUG: KASAN: slab-out-of-bounds".

Fix the issues by using the correct header size, removing the subtraction from num_devices, replacing the memcpy() with substitution and specifying the correct length to sg_copy_from_buffer().

CVSS Base Scores

version 3.1