Matt Ezell from Oak Ridge National Labs reported a vulnerability in torque, a PBS-derived batch processing queueing system. A user could submit executable shell commands on the tail of what is passed with the -M switch for qsub. This was later passed to a pipe, making it possible for these commands to be executed as root on the pbs\_server. For the oldstable distribution (squeeze), this problem has been fixed in version 2.4.8+dfsg-9squeeze3. For the stable distribution (wheezy), this problem has been fixed in version 2.4.16+dfsg-1+deb7u2. For the unstable distribution (sid), this problem has been fixed in version 2.4.16+dfsg-1.3. We recommend that you upgrade your torque packages.