masqmail - several

Jens Steube discovered two vulnerabilities in masqmail, a mailer for
hosts without permanent internet connection. The Common
Vulnerabilities and Exposures project identifies the following
problems:

• CAN-2005-2662
  When sending failed mail messages, the address is not sanitised,
  which allows a local attacker to execute arbitrary commands as the
  mail user.
• CAN-2005-2663
  When opening the log file, masqmail does not relinquish
  privileges, which allows a local attacker to overwrite arbitrary
  files via a symlink attack.

For the old stable distribution (woody) these problems have been fixed in
version 0.1.16-2.2.

For the stable distribution (sarge) these problems have been fixed in
version 0.2.20-1sarge1.

For the unstable distribution (sid) these problems have been fixed in
version 0.2.20-1sarge1.

We recommend that you upgrade your masqmail package.