CVE-2011-4539

NameCVE-2011-4539
Descriptiondhcpd in ISC DHCP 4.x before 4.2.3-P1 and 4.1-ESV before 4.1-ESV-R4 does not properly handle regular expressions in dhcpd.conf, which allows remote attackers to cause a denial of service (daemon crash) via a crafted request packet.
SourceCVE (at NVD; oss-sec, fulldisc, OSVDB, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, more)
ReferencesDSA-2519-1, DSA-2519-2
NVD severitymedium (attack range: remote)
Debian Bugs652259
Debian/oldstablenot vulnerable.
Debian/stablenot vulnerable.
Debian/testingnot vulnerable.
Debian/unstablenot vulnerable.

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
isc-dhcp (PTS)squeeze (security), squeeze4.1.1-P1-15+squeeze8fixed
wheezy4.2.2.dfsg.1-5+deb70u6fixed
jessie, sid4.3.1-6fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
dhcp3source(unstable)(not affected)
isc-dhcpsource(unstable)4.2.2.dfsg.1-5low652259
isc-dhcpsourcesqueeze4.1.1-P1-15+squeeze6mediumDSA-2519-2

Notes

- dhcp3 <not-affected> (Only affects DHCP 4.x)
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