Improper Locking Affecting linux-5.10 package, versions <5.10.197-1~deb10u1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.26% (17th percentile)

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  • Snyk IDSNYK-DEBIAN10-LINUX510-6010497
  • published3 Aug 2023
  • disclosed13 Jul 2023

Introduced: 13 Jul 2023

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

How to fix?

Upgrade Debian:10 linux-5.10 to version 5.10.197-1~deb10u1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream linux-5.10 package and not the linux-5.10 package as distributed by Debian. See How to fix? for Debian:10 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 Base Scores

version 3.1