USN-3318-1: GnuTLS vulnerabilities

13 June 2017

Several security issues were fixed in GnuTLS.

Releases

Packages

Details

Hubert Kario discovered that GnuTLS incorrectly handled decoding a status
response TLS extension. A remote attacker could possibly use this issue to
cause GnuTLS to crash, resulting in a denial of service. This issue only
applied to Ubuntu 16.04 LTS, Ubuntu 16.10 and Ubuntu 17.04. (CVE-2017-7507)

It was discovered that GnuTLS incorrectly handled decoding certain OpenPGP
certificates. A remote attacker could use this issue to cause GnuTLS to
crash, resulting in a denial of service, or possibly execute arbitrary
code. (CVE-2017-7869)

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 17.04
Ubuntu 16.10
Ubuntu 16.04
Ubuntu 14.04

In general, a standard system update will make all the necessary changes.