CVE-2014-4343

Name	CVE-2014-4343
Description	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.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DLA-37-1, DSA-3000-1
Debian Bugs	755520

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
krb5 (PTS)	jessie, jessie (lts)	1.12.1+dfsg-19+deb8u9	fixed
	stretch (security)	1.15-1+deb9u3	fixed
	stretch (lts), stretch	1.15-1+deb9u6	fixed
	buster, buster (lts)	1.17-3+deb10u7	fixed
	buster (security)	1.17-3+deb10u6	fixed
	bullseye (security), bullseye	1.18.3-6+deb11u5	fixed
	bookworm (security), bookworm	1.20.1-2+deb12u2	fixed
	sid, trixie	1.21.3-3	fixed

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

Package	Type	Release	Fixed Version	Origin	Debian Bugs
krb5	source	squeeze	1.8.3+dfsg-4squeeze8
krb5	source	wheezy	1.10.1+dfsg-5+deb7u2	DSA-3000-1
krb5	source	(unstable)	1.12.1+dfsg-5		755520

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