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
0.11% (46th percentile)

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  • Snyk IDSNYK-ALMALINUX9-FRR-6060433
  • published15 Nov 2023
  • disclosed7 Nov 2023

Introduced: 7 Nov 2023

CVE-2022-43681  (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 out-of-bounds read exists in the BGP daemon of FRRouting FRR through 8.4. When sending a malformed BGP OPEN message that ends with the option length octet (or the option length word, in case of an extended OPEN message), the FRR code reads of out of the bounds of the packet, throwing a SIGABRT signal and exiting. This results in a bgpd daemon restart, causing a Denial-of-Service condition.

CVSS Scores

version 3.1