gzip - arbitrary code execution

Several vulnerabilities have been found in gzip, the GNU compression
utilities. The Common Vulnerabilities and Exposures project identifies
the following problems:

• CVE-2009-2624
  Thiemo Nagel discovered a missing input sanitation flaw in the way gzip
  used to decompress data blocks for dynamic Huffman codes, which could
  lead to the execution of arbitrary code when trying to decompress a
  crafted archive. This issue is a reappearance of CVE-2006-4334 and only
  affects the lenny version.
• CVE-2010-0001
  Aki Helin discovered an integer underflow when decompressing files that
  are compressed using the LZW algorithm. This could lead to the execution
  of arbitrary code when trying to decompress a crafted LZW compressed
  gzip archive.

For the stable distribution (lenny), these problems have been fixed in
version 1.3.12-6+lenny1.

For the oldstable distribution (etch), these problems have been fixed in
version 1.3.5-15+etch1.

For the testing distribution (squeeze) and the unstable distribution
(sid), these problems will be fixed soon.

We recommend that you upgrade your gzip packages.