CVE-2012-3955

NameCVE-2012-3955
DescriptionISC DHCP 4.1.x before 4.1-ESV-R7 and 4.2.x before 4.2.4-P2 allows remote attackers to cause a denial of service (daemon crash) in opportunistic circumstances by establishing an IPv6 lease in an environment where the lease expiration time is later reduced.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, GitHub code/issues, web search, more)
ReferencesDSA-2551-1
NVD severityhigh (attack range: remote)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
isc-dhcp (PTS)wheezy (security), wheezy4.2.2.dfsg.1-5+deb70u8fixed
jessie (security), jessie4.3.1-6+deb8u2fixed
stretch, sid4.3.4-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
isc-dhcpsource(unstable)4.2.4-2high
isc-dhcpsourcesqueeze4.1.1-P1-15+squeeze8highDSA-2551-1
isc-dhcpsourcewheezy4.2.2.dfsg.1-5+deb70u1high

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