apache2 - several

Several problems have been discovered in Apache2, the next generation,
scalable, extendable web server. The Common Vulnerabilities and
Exposures project identifies the following problems:

• CAN-2005-1268
  Marc Stern discovered an off-by-one error in the mod_ssl
  Certificate Revocation List (CRL) verification callback. When
  Apache is configured to use a CRL this can be used to cause a
  denial of service.

• CAN-2005-2088
  A vulnerability has been discovered in the Apache web server.
  When it is acting as an HTTP proxy, it allows remote attackers to
  poison the web cache, bypass web application firewall protection,
  and conduct cross-site scripting attacks, which causes Apache to
  incorrectly handle and forward the body of the request.

• CAN-2005-2700
  A problem has been discovered in mod_ssl, which provides strong
  cryptography (HTTPS support) for Apache that allows remote
  attackers to bypass access restrictions.

• CAN-2005-2728
  The byte-range filter in Apache 2.0 allows remote attackers to
  cause a denial of service via an HTTP header with a large Range
  field.

The old stable distribution (woody) does not contain Apache2 packages.

For the stable distribution (sarge) these problems have been fixed in
version 2.0.54-5.

For the unstable distribution (sid) these problems have been fixed in
version 2.0.54-5.

We recommend that you upgrade your apache2 packages.