CVE-2011-0281

Name	CVE-2011-0281
Description	The unparse implementation in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.6.x through 1.9, when an LDAP backend is used, allows remote attackers to cause a denial of service (file descriptor exhaustion and daemon hang) via a principal name that triggers use of a backslash escape sequence, as demonstrated by a \n sequence.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
krb5 (PTS)	buster	1.17-3+deb10u4	fixed
	buster (security)	1.17-3+deb10u6	fixed
	bullseye	1.18.3-6+deb11u4	fixed
	bullseye (security)	1.18.3-6+deb11u3	fixed
	bookworm	1.20.1-2+deb12u1	fixed
	trixie	1.20.1-5	fixed
	sid	1.20.1-6	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
krb5	source	squeeze	1.8.3+dfsg-4squeeze1
krb5	source	(unstable)	1.8.3+dfsg-5

[lenny] - krb5 <no-dsa> (Will be fixed in a point update)