CVE-2024-55553 Affecting frr package, versions *


Severity

Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.04% (12th percentile)

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  • Snyk IDSNYK-UBUNTU2204-FRR-8602969
  • published14 Jan 2025
  • disclosed6 Jan 2025

Introduced: 6 Jan 2025

NewCVE-2024-55553  (opens in a new tab)

How to fix?

There is no fixed version for Ubuntu:22.04 frr.

NVD Description

Note: Versions mentioned in the description apply only to the upstream frr package and not the frr package as distributed by Ubuntu. See How to fix? for Ubuntu:22.04 relevant fixed versions and status.

In FRRouting (FRR) before 10.3 from 6.0 onward, all routes are re-validated if the total size of an update received via RTR exceeds the internal socket's buffer size, default 4K on most OSes. An attacker can use this to trigger re-parsing of the RIB for FRR routers using RTR by causing more than this number of updates during an update interval (usually 30 minutes). Additionally, this effect regularly occurs organically. Furthermore, an attacker can use this to trigger route validation continuously. Given that routers with large full tables may need more than 30 minutes to fully re-validate the table, continuous issuance/withdrawal of large numbers of ROA may be used to impact the route handling performance of all FRR instances using RPKI globally. Additionally, the re-validation will cause heightened BMP traffic to ingestors. Affected Versions: FRRouting <6.0. Fixed Versions: 10.0.3, 10.1.2, 10.2.1, >= 10.3.

CVSS Scores

version 3.1