Use After Free Affecting bpftool package, versions <0:3.10.0-1160.71.1.el7


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
2.91% (86th percentile)

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  • Snyk IDSNYK-RHEL7-BPFTOOL-7977227
  • published14 Sept 2024
  • disclosed31 May 2022

Introduced: 31 May 2022

CVE-2022-32250  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade RHEL:7 bpftool to version 0:3.10.0-1160.71.1.el7 or higher.
This issue was patched in RHSA-2022:5232.

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.

net/netfilter/nf_tables_api.c in the Linux kernel through 5.18.1 allows a local user (able to create user/net namespaces) to escalate privileges to root because an incorrect NFT_STATEFUL_EXPR check leads to a use-after-free.

References

CVSS Base Scores

version 3.1