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Vulnerability record · CVE-2005-0199 · published 2 May 2005

CVE-2005-0199: Barton ngircd vulnerability

Barton · Ngircd

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.

9.8 CVSS 3.1 Critical EPSS 19% · top 2.8% CWE-191 · CWE-191
9.8CVSS 3.1 base score, v2 7.5
19%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
16References, 2 tagged exploit
16 Jun 2026Last modified by NVD

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://arthur.ath.cx/pipermail/ngircd-ml/2005-January/000228.html Broken LinkPatch
http://bugs.gentoo.org/show_bug.cgi?id=79705 Issue Tracking
http://secunia.com/advisories/14056 Broken Link
http://secunia.com/advisories/14059 Broken Link
http://securitytracker.com/id?1013047 Broken LinkThird Party AdvisoryVDB Entry
http://www.gentoo.org/security/en/glsa/glsa-200501-40.xml PatchThird Party Advisory
http://www.securityfocus.com/bid/12397 Broken LinkExploitPatchThird Party AdvisoryVDB Entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/19143 Third Party AdvisoryVDB Entry
http://arthur.ath.cx/pipermail/ngircd-ml/2005-January/000228.html Broken LinkPatch
http://bugs.gentoo.org/show_bug.cgi?id=79705 Issue Tracking
http://secunia.com/advisories/14056 Broken Link
http://secunia.com/advisories/14059 Broken Link
http://securitytracker.com/id?1013047 Broken LinkThird Party AdvisoryVDB Entry
http://www.gentoo.org/security/en/glsa/glsa-200501-40.xml PatchThird Party Advisory
http://www.securityfocus.com/bid/12397 Broken LinkExploitPatchThird Party AdvisoryVDB Entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/19143 Third Party AdvisoryVDB Entry

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

7.5CVE-2020-14148Barton ngircd out-of-bounds read vulnerabilityThe Server-Server protocol implementation in ngIRCd before 26~rc2 allows an out-of-bounds access, as demonstrated by the IRC_NJOIN() function.EPSS 2.6%4.3CVE-2013-5580Barton ngircd improper input validation vulnerabilityThe (1) Conn_StartLogin and (2) cb_Read_Resolver_Result functions in conn.c in ngIRCd 18 through 20.2, when the configuration option NoticeAuth is en…EPSS 2.3%9.8CVE-2014-0497Adobe Flash Player integer underflow allows remote code executionAdobe Flash Player contains an integer underflow (CWE-191) that allows remote attackers to execute arbitrary code via unspecified vectors. The flaw a…KEVEPSS 100%analysed8.4CVE-2022-0185Linux Kernel Filesystem Context Heap Buffer OverflowThe legacy_parse_param function in the Linux kernel's Filesystem Context functionality fails to properly verify supplied parameter lengths, causing a…KEVEPSS 25%analysed7.8CVE-2021-31956Windows NTFS integer underflow privilege escalationCVE-2021-31956 is an elevation of privilege flaw in the Windows NTFS file system driver, rooted in an integer underflow (CWE-191). A local attacker w…KEVEPSS 22%analysed

Source: NIST National Vulnerability Database (record CVE-2005-0199), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.