CVE-2024-55553

Publication date 6 January 2025

Last updated 29 January 2025

Ubuntu priority

Medium

Why this priority?

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. Fixed Versions: 10.0.3, 10.1.2, 10.2.1, >= 10.3.

Read the notes from the security team

Status

Package Ubuntu Release Status
frr 24.10 oracular
Fixed 10.0.1-0.1ubuntu3
24.04 LTS noble
Fixed 8.4.4-1.1ubuntu6.3
22.04 LTS jammy
Fixed 8.1-1ubuntu1.13
20.04 LTS focal
quagga 24.10 oracular Not in release
24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal
Not affected
18.04 LTS bionic
Not affected
16.04 LTS xenial
Not affected

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Notes

sbeattie

the quagga project was renamed to frr

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
frr

References

Related Ubuntu Security Notices (USN)

Other references