Out-of-bounds Write Affecting kernel-livepatch-5_14_21-150400_24_60-default package, versions <3-150400.2.2


Severity

Recommended
medium

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.05% (23rd percentile)

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  • Snyk IDSNYK-SLES154-KERNELLIVEPATCH514211504002460DEFAULT-5747854
  • published30 Jun 2023
  • disclosed29 Jun 2023

Introduced: 29 Jun 2023

CVE-2023-31436  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade SLES:15.4 kernel-livepatch-5_14_21-150400_24_60-default to version 3-150400.2.2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-livepatch-5_14_21-150400_24_60-default package and not the kernel-livepatch-5_14_21-150400_24_60-default package as distributed by SLES. See How to fix? for SLES:15.4 relevant fixed versions and status.

qfq_change_class in net/sched/sch_qfq.c in the Linux kernel before 6.2.13 allows an out-of-bounds write because lmax can exceed QFQ_MIN_LMAX.

CVSS Scores

version 3.1