Improper Locking Affecting kernel-default-base package, versions <5.3.18-150200.24.163.1.150200.9.81.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.04% (12th percentile)

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  • Snyk IDSNYK-SLES152-KERNELDEFAULTBASE-5906455
  • published20 Sept 2023
  • disclosed19 Sept 2023

Introduced: 19 Sep 2023

CVE-2023-21400  (opens in a new tab)
CWE-667  (opens in a new tab)

How to fix?

Upgrade SLES:15.2 kernel-default-base to version 5.3.18-150200.24.163.1.150200.9.81.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-default-base package and not the kernel-default-base package as distributed by SLES. See How to fix? for SLES:15.2 relevant fixed versions and status.

In multiple functions of io_uring.c, there is a possible kernel memory corruption due to improper locking. This could lead to local escalation of privilege in the kernel with System execution privileges needed. User interaction is not needed for exploitation.

CVSS Scores

version 3.1