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CVE-2011-3354

5.0 · MEDIUM

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…

Published Oct 4, 2011quassel-ircCWE-399EPSS 2.07%

Overview

CVE-2011-3354 is a medium-severity vulnerability affecting quassel-irc quassel. It was published on October 4, 2011 and has a CVSS 2.0 base score of 5.0 (MEDIUM).

This vulnerability has a CVSS 2.0 base score of 5.0, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories and patches from quassel-irc. Update quassel to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
quassel-ircquassel0Affected

References

Refbugs.quassel-irc.org/projects/quassel-irc/repository/revisions/da215fcb9cd3096a3e223c87577d5d4ab8f8518b/diff/src/core/ctcpparser.cppRefosvdb.org/75351Refsecunia.com/advisories/45970Refwww.openwall.com/lists/oss-security/2011/09/08/7Refwww.openwall.com/lists/oss-security/2011/09/09/7Refwww.securityfocus.com/bid/49526Refwww.ubuntu.com/usn/USN-1200-1Refbugs.gentoo.org/show_bug.cgi?id=382313Refexchange.xforce.ibmcloud.com/vulnerabilities/69682Refbugs.quassel-irc.org/projects/quassel-irc/repository/revisions/da215fcb9cd3096a3e223c87577d5d4ab8f8518b/diff/src/core/ctcpparser.cpp

How CyberStrike helps

Frequently asked questions

What is CVE-2011-3354?

CVE-2011-3354 is a medium-severity vulnerability affecting quassel-irc quassel. It was published on October 4, 2011 and has a CVSS 2.0 base score of 5.0 (MEDIUM).

How severe is CVE-2011-3354?

This vulnerability has a CVSS 2.0 base score of 5.0, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2011-3354?

Check the references section for vendor advisories and patches from quassel-irc. Update quassel to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2011-3354?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2011-3354 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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