Out-of-bounds Write Affecting bpftool package, versions <0:3.10.0-1160.105.1.el7


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.05% (22nd percentile)

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  • Snyk IDSNYK-RHEL7-BPFTOOL-7980274
  • published14 Sept 2024
  • disclosed13 Apr 2023

Introduced: 13 Apr 2023

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

How to fix?

Upgrade RHEL:7 bpftool to version 0:3.10.0-1160.105.1.el7 or higher.
This issue was patched in RHSA-2023:7423.

NVD Description

Note: Versions mentioned in the description apply only to the upstream bpftool package and not the bpftool package as distributed by RHEL. See How to fix? for RHEL:7 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