CVE-2016-4356

NameCVE-2016-4356
DescriptionThe append_utf8_value function in the DN decoder (dn.c) in Libksba before 1.3.3 allows remote attackers to cause a denial of service (out-of-bounds read) by clearing the high bit of the byte after invalid utf-8 encoded data.
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
libksba (PTS)buster1.3.5-2fixed
buster (security)1.3.5-2+deb10u2fixed
bullseye (security), bullseye1.5.0-3+deb11u2fixed
bookworm1.6.3-2fixed
sid, trixie1.6.6-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
libksbasourcejessie1.3.2-1+deb8u1
libksbasource(unstable)1.3.3-1low

Notes

[wheezy] - libksba <no-dsa> (Minor issue)
[squeeze] - libksba <no-dsa> (Minor issue)
https://www.openwall.com/lists/oss-security/2015/04/13/5
https://www.openwall.com/lists/oss-security/2016/04/29/5
http://git.gnupg.org/cgi-bin/gitweb.cgi?p=libksba.git;a=commit;h=243d12fdec66a4360fbb3e307a046b39b5b4ffc3

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