nss - cryptographic weaknesses

Several vulnerabilities have been discovered in Mozilla’s Network
Security Services (NSS) library. The Common Vulnerabilities and
Exposures project identifies the following problems:

• CVE-2010-3170
  NSS recognizes a wildcard IP address in the subject’s Common
  Name field of an X.509 certificate, which might allow
  man-in-the-middle attackers to spoof arbitrary SSL servers via
  a crafted certificate issued by a legitimate Certification
  Authority.
• CVE-2010-3173
  NSS does not properly set the minimum key length for
  Diffie-Hellman Ephemeral (DHE) mode, which makes it easier for
  remote attackers to defeat cryptographic protection mechanisms
  via a brute-force attack.

For the stable distribution (lenny), these problems have been fixed in
version 3.12.3.1-0lenny2.

For the unstable distribution (sid) and the upcoming stable
distribution (squeeze), these problems have been fixed in version
3.12.8-1.

We recommend that you upgrade your NSS packages.