CVE-2009-4016

no score yetEPSS 4.0%

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.

EPSS: 4.0% chance of exploitation in the next 30 days; higher than 90% of CVEs (scores of 2026-10-31)
CWE: CWE-189
Published: 2010-02-04
Modified: 2026-06-16
Record from: the NVD, synced 2026-10-19

Affected

ircd-hybrid:ircd-hybrid
ircd-ratbox:ircd-ratbox
oftc:oftc-hybrid

References

http://lists.ratbox.org/pipermail/ircd-ratbox/2010-January/000891.html
http://secunia.com/advisories/38210
http://secunia.com/advisories/38381
http://secunia.com/advisories/38382
http://secunia.com/advisories/38383

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