[SECURITY] [DLA 950-1] libtasn1-3 security update

2017-05-23T20:40:38
ID DEBIAN:DLA-950-1:6137B
Type debian
Reporter Debian
Modified 2017-05-23T20:40:38

Description

Package : libtasn1-3 Version : 2.13-2+deb7u4 CVE ID : CVE-2017-6891

Secunia Research has discovered multiple vulnerabilities in GnuTLS libtasn1, which can be exploited by malicious people to compromise a vulnerable system.

Two errors in the "asn1_find_node()" function (lib/parser_aux.c) can be exploited to cause a stacked-based buffer overflow.

Successful exploitation of the vulnerabilities allows execution of arbitrary code but requires tricking a user into processing a specially crafted assignments file by e.g. asn1Coding utility.

For Debian 7 "Wheezy", this problem has been fixed in version 2.13-2+deb7u4.

We recommend that you upgrade your libtasn1-3 packages.

Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS