Reachable Assertion Affecting frr-selinux package, versions <0:8.3.1-11.el9_3


Severity

Recommended
medium

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.33% (71st percentile)

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  • Snyk IDSNYK-RHEL9-FRRSELINUX-7875430
  • published3 Sept 2024
  • disclosed4 Apr 2023

Introduced: 4 Apr 2023

CVE-2022-36440  (opens in a new tab)
CWE-617  (opens in a new tab)

How to fix?

Upgrade RHEL:9 frr-selinux to version 0:8.3.1-11.el9_3 or higher.
This issue was patched in RHSA-2023:6434.

NVD Description

Note: Versions mentioned in the description apply only to the upstream frr-selinux package and not the frr-selinux package as distributed by RHEL. See How to fix? for RHEL:9 relevant fixed versions and status.

A reachable assertion was found in Frrouting frr-bgpd 8.3.0 in the peek_for_as4_capability function. Attackers can maliciously construct BGP open packets and send them to BGP peers running frr-bgpd, resulting in DoS.

CVSS Scores

version 3.1