Debian Security Advisory
DLA-950-1 libtasn1-3 -- LTS security update
- Date Reported:
- 23 May 2017
- Affected Packages:
- Security database references:
- In Mitre's CVE dictionary: CVE-2017-6891.
- More information:
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