CVE-2006-6811

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 10.6% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2006-12-29 · updated 2026-06-16
Weakness: CWE-617

Description

KsIRC 1.3.12 allows remote attackers to cause a denial of service (crash) via a long PRIVMSG string when connecting to an Internet Relay Chat (IRC) server, which causes an assertion failure and results in a NULL pointer dereference. NOTE: this issue was originally reported as a buffer overflow.

Affected products

Canonical Ubuntu Linux: 5.10, 6.06, 6.10
KDE Ksirc: 1.3.12

References

http://osvdb.org/33443
http://security.gentoo.org/glsa/glsa-200701-26.xml
http://securitytracker.com/id?1017453
http://www.addict3d.org/index.php?page=viewarticle&trace=0&type=security&ID=8468
http://www.kde.org/info/security/advisory-20070109-1.txt
http://www.mandriva.com/security/advisories?name=MDKSA-2007:009
http://www.securityfocus.com/archive/1/456379/100/0/threaded
http://www.securityfocus.com/bid/21790
http://www.ubuntu.com/usn/usn-409-1
http://www.vupen.com/english/advisories/2006/5199
https://exchange.xforce.ibmcloud.com/vulnerabilities/31134
https://issues.rpath.com/browse/RPL-922

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