Out-of-bounds Write Affecting kernel-livepatch-5_14_21-150500_13_5-rt package, versions <1-150500.11.5.1


Severity

Recommended
medium

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.05% (24th percentile)

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  • Snyk IDSNYK-SLES155-KERNELLIVEPATCH51421150500135RT-5772206
  • published12 Jul 2023
  • disclosed11 Jul 2023

Introduced: 11 Jul 2023

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

How to fix?

Upgrade SLES:15.5 kernel-livepatch-5_14_21-150500_13_5-rt to version 1-150500.11.5.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-livepatch-5_14_21-150500_13_5-rt package and not the kernel-livepatch-5_14_21-150500_13_5-rt package as distributed by SLES. See How to fix? for SLES:15.5 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 Base Scores

version 3.1