CVE-2005-0199

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 18.8% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2005-05-02 · updated 2026-06-16
Weakness: CWE-191

Description

Integer underflow in the Lists_MakeMask() function in lists.c in ngIRCd before 0.8.2 allows remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code via a long MODE line that causes an incorrect length calculation, which leads to a buffer overflow.

Affected products

Barton Ngircd: before 0.8.2 — fixed in 0.8.2

How to fix

Upgrade to a fixed version: Barton Ngircd 0.8.2. Check the vendor advisory for mitigations.

References

http://arthur.ath.cx/pipermail/ngircd-ml/2005-January/000228.html
http://bugs.gentoo.org/show_bug.cgi?id=79705
http://secunia.com/advisories/14056
http://secunia.com/advisories/14059
http://securitytracker.com/id?1013047
http://www.gentoo.org/security/en/glsa/glsa-200501-40.xml
http://www.securityfocus.com/bid/12397
https://exchange.xforce.ibmcloud.com/vulnerabilities/19143
http://arthur.ath.cx/pipermail/ngircd-ml/2005-January/000228.html
http://bugs.gentoo.org/show_bug.cgi?id=79705
http://secunia.com/advisories/14056
http://secunia.com/advisories/14059

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