Vulnerability Description
Integer underflow in the clean_string function in irc_string.c in (1) IRCD-hybrid 7.2.2 and 7.2.3, (2) ircd-ratbox before 2.2.9, and (3) oftc-hybrid before 1.6.8, when flatten_links is disabled, allows remote attackers to execute arbitrary code or cause a denial of service (daemon crash) via a LINKS command.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ircd-Hybrid | Ircd-Hybrid | 7.2.2 |
| Ircd-Ratbox | Ircd-Ratbox | <= 2.2.8 |
| Oftc | Oftc-Hybrid | <= 1.6.7 |
Related Weaknesses (CWE)
References
- http://lists.ratbox.org/pipermail/ircd-ratbox/2010-January/000891.html
- http://secunia.com/advisories/38210Vendor Advisory
- http://secunia.com/advisories/38381Vendor Advisory
- http://secunia.com/advisories/38382Vendor Advisory
- http://secunia.com/advisories/38383Vendor Advisory
- http://security.debian.org/pool/updates/main/i/ircd-hybrid/ircd-hybrid_7.2.2.dfsPatch
- http://svn.ircd-hybrid.org:8000/viewcvs.cgi?rev=1044&view=rev
- http://trac.oftc.net/projects/oftc-hybrid/browser/tags/oftc-hybrid-1.6.8/RELNOTE
- http://www.debian.org/security/2010/dsa-1980Patch
- http://www.securityfocus.com/bid/37978
- http://lists.ratbox.org/pipermail/ircd-ratbox/2010-January/000891.html
- http://secunia.com/advisories/38210Vendor Advisory
- http://secunia.com/advisories/38381Vendor Advisory
- http://secunia.com/advisories/38382Vendor Advisory
- http://secunia.com/advisories/38383Vendor Advisory
FAQ
What is CVE-2009-4016?
CVE-2009-4016 is a vulnerability with a CVSS score of 6.8 (MEDIUM). Integer underflow in the clean_string function in irc_string.c in (1) IRCD-hybrid 7.2.2 and 7.2.3, (2) ircd-ratbox before 2.2.9, and (3) oftc-hybrid before 1.6.8, when flatten_links is disabled, allow...
How severe is CVE-2009-4016?
CVE-2009-4016 has been rated MEDIUM with a CVSS base score of 6.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2009-4016?
Check the references section above for vendor advisories and patch information. Affected products include: Ircd-Hybrid Ircd-Hybrid, Ircd-Ratbox Ircd-Ratbox, Oftc Oftc-Hybrid.