USN-2727-1: GnuTLS vulnerabilities
1 September 2015
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 15.04
GnuTLS could be made to crash or run programs if it processed a specially crafted certificate.
- gnutls28 - GNU TLS library
It was discovered that GnuTLS incorrectly handled parsing CRL distribution points. A remote attacker could possibly use this issue to cause a denial of service, or execute arbitrary code. (CVE-2015-3308)
Kurt Roeckx discovered that GnuTLS incorrectly handled a long DistinguishedName (DN) entry in a certificate. A remote attacker could possibly use this issue to cause a denial of service, or execute arbitrary code. (CVE-2015-6251)
The problem can be corrected by updating your system to the following package versions:
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system update will make all the necessary changes.