Out-of-bounds Read Affecting frr package, versions <0:8.3.1-11.el9_3.alma.1


Severity

Recommended
0.0
medium
0
10

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.08% (35th percentile)

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  • Snyk IDSNYK-ALMALINUX9-FRR-6060429
  • published15 Nov 2023
  • disclosed7 Nov 2023

Introduced: 7 Nov 2023

CVE-2022-40302  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:9 frr to version 0:8.3.1-11.el9_3.alma.1 or higher.
This issue was patched in ALSA-2023:6434.

NVD Description

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

An issue was discovered in bgpd in FRRouting (FRR) through 8.4. By crafting a BGP OPEN message with an option of type 0xff (Extended Length from RFC 9072), attackers may cause a denial of service (assertion failure and daemon restart, or out-of-bounds read). This is possible because of inconsistent boundary checks that do not account for reading 3 bytes (instead of 2) in this 0xff case.

CVSS Scores

version 3.1