It was discovered that libgssglue incorrectly handled the
GSSAPI_MECH_CONF environment variable when running a privileged binary. A local attacker could exploit this to gain root privileges.
Updated packages are available from security.ubuntu.com.
========================================================================== Ubuntu Security Notice USN-1612-1 October 15, 2012 libgssglue vulnerability ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 12.04 LTS - Ubuntu 11.10 - Ubuntu 11.04 - Ubuntu 10.04 LTS Summary: Privilege escalation via the GSSAPI_MECH_CONF environment variable with setuid programs. Software Description: - libgssglue: header files and docs for libgssglue Details: It was discovered that libgssglue incorrectly handled the GSSAPI_MECH_CONF environment variable when running a privileged binary. A local attacker could exploit this to gain root privileges. (CVE-2011-2709) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 12.04 LTS: libgssglue1 0.3-4ubuntu0.1 Ubuntu 11.10: libgssglue1 0.3-1ubuntu1.1 Ubuntu 11.04: libgssglue1 0.1-4ubuntu1.1 Ubuntu 10.04 LTS: libgssglue1 0.1-4ubuntu0.1 In general, a standard system update will make all the necessary changes. References: http://www.ubuntu.com/usn/usn-1612-1 CVE-2011-2709 Package Information: https://launchpad.net/ubuntu/+source/libgssglue/0.3-4ubuntu0.1 https://launchpad.net/ubuntu/+source/libgssglue/0.3-1ubuntu1.1 https://launchpad.net/ubuntu/+source/libgssglue/0.1-4ubuntu1.1 https://launchpad.net/ubuntu/+source/libgssglue/0.1-4ubuntu0.1