CVE-2011-0281

NameCVE-2011-0281
DescriptionThe 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.
SourceCVE (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 PackageReleaseVersionStatus
krb5 (PTS)bullseye1.18.3-6+deb11u4fixed
bullseye (security)1.18.3-6+deb11u5fixed
bookworm1.20.1-2+deb12u1fixed
bookworm (security)1.20.1-2+deb12u2fixed
trixie1.21.2-1fixed
sid1.21.3-3fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
krb5sourcesqueeze1.8.3+dfsg-4squeeze1
krb5source(unstable)1.8.3+dfsg-5

Notes

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

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