CVE-2009-4016

critical

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.

References

http://www.securityfocus.com/bid/37978

http://www.debian.org/security/2010/dsa-1980

http://trac.oftc.net/projects/oftc-hybrid/browser/tags/oftc-hybrid-1.6.8/RELNOTES

http://svn.ircd-hybrid.org:8000/viewcvs.cgi?rev=1044&view=rev

http://security.debian.org/pool/updates/main/i/ircd-hybrid/ircd-hybrid_7.2.2.dfsg.2-4+lenny1.diff.gz

http://secunia.com/advisories/38383

http://secunia.com/advisories/38382

http://secunia.com/advisories/38381

http://secunia.com/advisories/38210

http://lists.ratbox.org/pipermail/ircd-ratbox/2010-January/000891.html

Details

Source: Mitre, NVD

Published: 2010-02-04

Updated: 2010-02-05

Risk Information

CVSS v2

Base Score: 6.8

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P

Severity: Medium

CVSS v3

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical