==========================================================================
Ubuntu Security Notice USN-2727-1
September 01, 2015
gnutls28 vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
– Ubuntu 15.04
Summary:
GnuTLS could be made to crash or run programs if it processed a specially
crafted certificate.
Software Description:
– gnutls28: GNU TLS library
Details:
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)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 15.04:
libgnutls-deb0-28 3.3.8-3ubuntu3.1
In general, a standard system update will make all the necessary changes.
References:
http://www.ubuntu.com/usn/usn-2727-1
CVE-2015-3308, CVE-2015-6251
Package Information:
https://launchpad.net/ubuntu/+source/gnutls28/3.3.8-3ubuntu3.1
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