CVE-2013-5580
The (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 enabled, does not properly handle the return code for the Handle_Write function, which allows remote attackers to cause a denial of service (assertion failure and server crash) via unspecified vectors, related to a "notice auth" message not being sent to a new client.
Key facts
- CVSS score
- 4.3 (v2.0)
- Severity
- MEDIUM
- CVSS vector
AV:N/AC:M/Au:N/C:N/I:N/A:P- Weakness (CWE)
- CWE-20
- EPSS score
- 2.3% (84th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2013-5420)
- Published
- October 1, 2013
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2013-5420 in the EU Vulnerability Database. Last updated in EUVD on September 16, 2024.
View on the EU Vulnerability DatabaseAffected products
- barton / ngircd
- barton / ngircd
- barton / ngircd
- barton / ngircd
- barton / ngircd
- barton / ngircd
References
- http://arthur.barton.de/cgi-bin/gitweb.cgi?p=ngircd.git%3Ba=commit%3Bh=309122017ebc6fff039a7cab1b82f632853d82d5
- http://arthur.barton.de/pipermail/ngircd-ml/2013-August/000645.html
- http://freecode.com/projects/ngircd/releases/357245(Patch)
- http://lists.fedoraproject.org/pipermail/package-announce/2013-September/115047.html
- http://lists.fedoraproject.org/pipermail/package-announce/2013-September/115077.html
- http://osvdb.org/96590
- http://secunia.com/advisories/54567(Vendor Advisory)
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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