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CVE-2014-4343

Published: 21 July 2014

Double 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.

Priority

Medium

Status

Package Release Status
krb5
Launchpad, Ubuntu, Debian
lucid
Released (1.8.1+dfsg-2ubuntu0.13)
precise
Released (1.10+dfsg~beta1-2ubuntu0.5)
saucy Ignored
(reached end-of-life)
trusty
Released (1.12+dfsg-2ubuntu4.2)
upstream
Released (1.12.1+dfsg-5)
Patches:
upstream: https://github.com/krb5/krb5/commit/f18ddf5d82de0ab7591a36e465bc24225776940f

Notes

AuthorNote
seth-arnold
Remote unauthenticated triggering is possible though the commit
message for the patch indicates why it is unlikely; thus 'medium'.

References