CVE-2013-0238
MEDIUM · CVSS 5.0EPSS 10.0%EU EUVD
The try_parse_v4_netmask function in hostmask.c in IRCD-Hybrid before 8.0.6 does not properly validate masks, which allows remote attackers to cause a denial of service (crash) via a mask that causes a negative number to be parsed.
Key facts
- CVSS score
- 5.0 (v2.0)
- Severity
- MEDIUM
- CVSS vector
AV:N/AC:L/Au:N/C:N/I:N/A:P- Weakness (CWE)
- CWE-20
- EPSS score
- 10.0% (96th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2013-0271)
- Published
- February 13, 2013
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2013-0271 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.
View on the EU Vulnerability DatabaseAffected products
- ircd-hybrid / ircd-hybrid
- ircd-hybrid / ircd-hybrid
- ircd-hybrid / ircd-hybrid
- ircd-hybrid / ircd-hybrid
- ircd-hybrid / ircd-hybrid
- ircd-hybrid / ircd-hybrid
- ircd-hybrid / ircd-hybrid
- ircd-hybrid / ircd-hybrid
- ircd-hybrid / ircd-hybrid
- ircd-hybrid / ircd-hybrid
- ircd-hybrid / ircd-hybrid
- ircd-hybrid / ircd-hybrid
- ircd-hybrid / ircd-hybrid
- ircd-hybrid / ircd-hybrid
- ircd-hybrid / ircd-hybrid
- ircd-hybrid / ircd-hybrid
- ircd-hybrid / ircd-hybrid
References
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=699267
- http://osvdb.org/89623
- http://secunia.com/advisories/51948(Vendor Advisory)
- http://secunia.com/advisories/52106(Vendor Advisory)
- http://svn.ircd-hybrid.org:8000/viewcvs.cgi/ircd-hybrid/trunk/src/hostmask.c?r1=1786&r2=1785&pathrev=1786
- http://www.debian.org/security/2013/dsa-2618
- http://www.exploit-db.com/exploits/24951
- http://www.mandriva.com/security/advisories?name=MDVSA-2013:093
- http://www.openwall.com/lists/oss-security/2013/01/29/8
- http://www.securityfocus.com/bid/57610
- https://exchange.xforce.ibmcloud.com/vulnerabilities/81695
- https://wiki.mageia.org/en/Support/Advisories/MGASA-2013-0055
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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