USN-1418-1: GnuTLS vulnerabilities

Releases

• Ubuntu 11.10
• Ubuntu 11.04
• Ubuntu 10.10
• Ubuntu 10.04
• Ubuntu 8.04

Packages

• gnutls13 - the GNU TLS library - commandline utilities
• gnutls26 - the GNU TLS library - commandline utilities

Details

Alban Crequy discovered that the GnuTLS library incorrectly checked array
bounds when copying TLS session data. A remote attacker could crash a client
application, leading to a denial of service, as the client application prepared
for TLS session resumption. (CVE-2011-4128)

Matthew Hall discovered that the GnuTLS library incorrectly handled TLS
records. A remote attacker could crash client and server applications, leading
to a denial of service, by sending a crafted TLS record. (CVE-2012-1573)

Update instructions

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

Ubuntu 8.04

• libgnutls13 - 2.0.4-1ubuntu2.7

Ubuntu 11.10

• libgnutls26 - 2.10.5-1ubuntu3.1

Ubuntu 11.04

• libgnutls26 - 2.8.6-1ubuntu2.1

Ubuntu 10.10

• libgnutls26 - 2.8.6-1ubuntu0.1

Ubuntu 10.04

• libgnutls26 - 2.8.5-2ubuntu0.1

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

References

• CVE-2012-1573
• CVE-2011-4128