CVE-2011-3354

Severity: medium (CVSS 5.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2011-10-04 · updated 2026-06-16
Weakness: CWE-399

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.

Affected products

Quassel-Irc Quassel: through 0.7.2; 0.3.0, 0.3.1, 0.4.0, 0.4.1, 0.4.2, 0.4.3 (+7)

References

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

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