CVE-2011-4869

NameCVE-2011-4869
Descriptionvalidator/val_nsec3.c in Unbound before 1.4.13p2 does not properly perform proof processing for NSEC3-signed zones, which allows remote DNS servers to cause a denial of service (daemon crash) via a malformed response that lacks expected NSEC3 records, a different vulnerability than CVE-2011-4528.
SourceCVE (at NVD; oss-sec, fulldisc, OSVDB, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, more)
ReferencesDSA-2370-1
NVD severityhigh (attack range: remote)
Debian/oldoldstablenot vulnerable.
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
unbound (PTS)squeeze1.4.6-1+squeeze3fixed
squeeze (security)1.4.6-1+squeeze2fixed
squeeze (lts)1.4.6-1+squeeze4fixed
wheezy, wheezy (security)1.4.17-3+deb7u2fixed
stretch, sid, jessie1.4.22-3fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
unboundsource(unstable)1.4.14-1medium
unboundsourcelenny1.4.6-1~lenny2highDSA-2370-1
unboundsourcesqueeze1.4.6-1+squeeze2highDSA-2370-1

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