| Name | CVE-2024-31951 |
| Description | In the Opaque LSA Extended Link parser in FRRouting (FRR) through 9.1, there can be a buffer overflow and daemon crash in ospf_te_parse_ext_link for OSPF LSA packets during an attempt to read Segment Routing Adjacency SID subTLVs (lengths are not validated). |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| frr (PTS) | buster | 6.0.2-2+deb10u1 | fixed |
| buster (security) | 7.5.1-1.1+deb10u2 | fixed |
| bullseye (security), bullseye | 7.5.1-1.1+deb11u2 | fixed |
| bookworm (security), bookworm | 8.4.4-1.1~deb12u1 | vulnerable |
| sid | 10.0-0.2 | vulnerable |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| frr | source | buster | (not affected) | | | |
| frr | source | bullseye | (not affected) | | | |
| frr | source | (unstable) | (unfixed) | | | |
Notes
[bullseye] - frr <not-affected> (Vulnerable code not present)
[buster] - frr <not-affected> (Vulnerable code not present)
https://github.com/FRRouting/frr/pull/15674/
Proposed fix: https://github.com/FRRouting/frr/pull/15674/commits/344fb4be2bc27316c74b17003c05ea40be395836
vulnerable feature introduced in https://github.com/FRRouting/frr/commit/f173deb35206a09e8dc22828cb08638e289b72a5 (first shipped with 8.0)