cupsys - several vulnerabilities

Multiple
vulnerabilities were discovered in the Common Unix Printing
System (CUPS). Several of these issues represent the potential for a
remote compromise or denial of service. The Common Vulnerabilities
and Exposures project identifies the following problems:

• 
  CAN-2002-1383: Multiple integer overflows allow a remote attacker
  to execute arbitrary code via the CUPSd HTTP interface and the
  image handling code in CUPS filters.
• 
  CAN-2002-1366: Race conditions in connection with /etc/cups/certs/
  allow local users with lp privileges to create or overwrite
  arbitrary files. This is not present in the potato version.
• 
  CAN-2002-1367: This vulnerability allows a remote attacker to add
  printers without authentication via a certain UDP packet, which can
  then be used to perform unauthorized activities such as stealing
  the local root certificate for the administration server via a
  “need authorization” page.
• 
  CAN-2002-1368: Negative lengths fed into memcpy() can cause a
  denial of service and possibly execute arbitrary code.
• 
  CAN-2002-1369: An unsafe strncat() function call processing the
  options string allows a remote attacker to execute arbitrary code
  via a buffer overflow.
• 
  CAN-2002-1371: Zero width images allows a remote attacker to
  execute arbitrary code via modified chunk headers.
• 
  CAN-2002-1372: CUPS does not properly check the return values of
  various file and socket operations, which could allow a remote
  attacker to cause a denial of service.
• 
  CAN-2002-1384: The cupsys package contains some code from the xpdf
  package, used to convert PDF files for printing, which contains an
  exploitable integer overflow bug. This is not present in the
  potato version.

Even though we tried very hard to fix all problems in the packages for
potato as well, the packages may still contain other security related
problems. Hence, we advise users of potato systems using CUPS to
upgrade to woody soon.

For the current stable distribution (woody), these problems have been fixed
in version 1.1.14-4.3.

For the old stable distribution (potato), these problems have been fixed
in version 1.0.4-12.1.

For the unstable distribution (sid), these problems have been fixed in
version 1.1.18-1.

We recommend that you upgrade your CUPS packages immediately.