CVE-2014-4343

NameCVE-2014-4343
DescriptionDouble free vulnerability in the init_ctx_reselect function in the SPNEGO initiator in lib/gssapi/spnego/spnego_mech.c in MIT Kerberos 5 (aka krb5) 1.10.x through 1.12.x before 1.12.2 allows remote attackers to cause a denial of service (memory corruption) or possibly execute arbitrary code via network traffic that appears to come from an intended acceptor, but specifies a security mechanism different from the one proposed by the initiator.
SourceCVE (at NVD; oss-sec, fulldisc, OSVDB, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, more)
ReferencesDLA-37-1, DSA-3000-1
NVD severityhigh (attack range: remote)
Debian Bugs755520
Debian/oldoldstablepackage krb5 is 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
krb5 (PTS)squeeze, squeeze (security)1.8.3+dfsg-4squeeze7vulnerable
squeeze (lts)1.8.3+dfsg-4squeeze9fixed
wheezy1.10.1+dfsg-5+deb7u2fixed
wheezy (security)1.10.1+dfsg-5+deb7u3fixed
jessie1.12.1+dfsg-19fixed
stretch, sid1.12.1+dfsg-20fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
krb5source(unstable)1.12.1+dfsg-5high755520
krb5sourcesqueeze1.8.3+dfsg-4squeeze8high
krb5sourcewheezy1.10.1+dfsg-5+deb7u2highDSA-3000-1

Notes

https://github.com/krb5/krb5/commit/f18ddf5d82de0ab7591a36e465bc24225776940f

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