CVE-2009-4016

NameCVE-2009-4016
DescriptionInteger 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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, GitHub code/issues, web search, more)
ReferencesDSA-1980-1
NVD severitymedium (attack range: remote)
Debian Bugs567191, 567192, 567193

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
ircd-hybrid (PTS)wheezy1:7.2.2.dfsg.2-10+deb7u1fixed
jessie1:8.2.0+dfsg.1-2+deb8u1fixed
stretch1:8.2.19+dfsg.1-1fixed
sid1:8.2.21+dfsg.1-1fixed
ircd-ratbox (PTS)wheezy3.0.7.dfsg-3fixed
jessie3.0.8.dfsg-3fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
ircd-hybridsource(unstable)1:7.2.2.dfsg.2-6.1medium567192
ircd-hybridsourceetch1:7.2.2.dfsg.2-3+etch1mediumDSA-1980-1
ircd-hybridsourcelenny1:7.2.2.dfsg.2-4+lenny1mediumDSA-1980-1
ircd-ratboxsource(unstable)3.0.6.dfsg-1medium567191
ircd-ratboxsourcelenny2.2.8.dfsg-2+lenny1mediumDSA-1980-1
oftc-hybridsource(unstable)1.6.3.dfsg-1.1medium567193

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