It was discovered that CUPS, the Common UNIX Printing System, is
vulnerable to a remotely triggerable privilege escalation via cross-site
scripting and bad print job submission used to replace cupsd.conf on the
CUPS server.
For the oldstable distribution (wheezy), these problems have been fixed
in version 1.5.3-5+deb7u6.
For the stable distribution (jessie), these problems have been fixed in
version 1.7.5-11+deb8u1.
For the unstable distribution (sid), these problems have been fixed in
version 1.7.5-12.
We recommend that you upgrade your cups packages.