| Name | CVE-2016-4356 |
| Description | The 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. |
| 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 |
|---|
| libksba (PTS) | bullseye (security), bullseye | 1.5.0-3+deb11u2 | fixed |
| bookworm | 1.6.3-2 | fixed |
| sid, trixie | 1.6.7-2 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| libksba | source | jessie | 1.3.2-1+deb8u1 | | | |
| libksba | source | (unstable) | 1.3.3-1 | low | | |
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