CVE-2024-31951: Buffer Overflow
First published: Sun Apr 07 2024(Updated: )
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).
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/frr | <=8.4.4-1.1~deb12u1 | 7.5.1-1.1+deb11u2 7.5.1-1.1+deb11u4 10.2.1-2 |
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Reference Links
- https://github.com/FRRouting/frr/pull/15674/
- https://github.com/FRRouting/frr/pull/15674/commits/344fb4be2bc27316c74b17003c05ea40be395836
- https://launchpad.net/bugs/cve/CVE-2024-31951
- https://github.com/FRRouting/frr/commit/f69d1313b19047d3d83fc2b36a518355b861dfc4
- https://github.com/FRRouting/frr/commit/5557a289acdaeec8cc63ffc97b5c2abf6dee7b3a
- https://github.com/FRRouting/frr/commit/8c177d69e32b91b45bda5fc5da6511fa03dc11ca
- https://github.com/FRRouting/frr/commit/e08495a4a8ad4d2050691d9e5e13662d2635b2e0
- https://github.com/FRRouting/frr/commit/f173deb35206a09e8dc22828cb08638e289b72a5
- https://security-tracker.debian.org/tracker/CVE-2024-31951
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-31951
- https://nvd.nist.gov/vuln/detail/CVE-2024-31951
- https://ubuntu.com/security/CVE-2024-31951
Frequently Asked Questions
What is the severity of CVE-2024-31951?
CVE-2024-31951 has been categorized as a critical vulnerability due to the potential for buffer overflow and daemon crashes.
How do I fix CVE-2024-31951?
To mitigate CVE-2024-31951, you should upgrade to versions 7.5.1-1.1+deb11u2, 7.5.1-1.1+deb11u4, or 10.2.1-2 of the frr package.
What systems are affected by CVE-2024-31951?
CVE-2024-31951 affects versions of the frr package up to and including 8.4.4-1.1~deb12u1 on Debian-based systems.
What types of attacks does CVE-2024-31951 enable?
CVE-2024-31951 enables attackers to exploit buffer overflow vulnerabilities, potentially leading to remote crashes of the daemon.
Is CVE-2024-31951 specific to any protocol?
Yes, CVE-2024-31951 specifically affects the OSPF protocol implementation within the FRRouting software.
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