CVE-2011-4868

NameCVE-2011-4868
DescriptionThe logging functionality in dhcpd in ISC DHCP before 4.2.3-P2, when using Dynamic DNS (DDNS) and issuing IPv6 addresses, does not properly handle the DHCPv6 lease structure, which allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via crafted packets related to a lease-status update.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs655746

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
isc-dhcp (PTS)jessie, jessie (lts)4.3.1-6+deb8u6fixed
stretch (security)4.3.5-3+deb9u2fixed
stretch (lts), stretch4.3.5-3+deb9u3fixed
buster (security), buster, buster (lts)4.4.1-2+deb10u3fixed
bullseye4.4.1-2.3+deb11u2fixed
bullseye (security)4.4.1-2.3+deb11u1fixed
bookworm4.4.3-P1-2fixed
sid, trixie4.4.3-P1-5fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
isc-dhcpsourcesqueeze(not affected)
isc-dhcpsource(unstable)4.2.2.dfsg.1-5low655746

Notes

[squeeze] - isc-dhcp <not-affected> (vulnerable code not present)

Search for package or bug name: Reporting problems