nss - security update

Several vulnerabilities have been discovered in nss, the Mozilla Network
Security Service library. The Common Vulnerabilities and Exposures project
identifies the following problems:

• CVE-2015-7181
  The sec_asn1d_parse_leaf function improperly restricts access to an
  unspecified data structure, which allows remote attackers to cause a
  denial of service (application crash) or possibly execute arbitrary
  code via crafted OCTET STRING data, related to a “use-after-poison”
  issue.
• CVE-2015-7182
  A Heap-based buffer overflow in the ASN.1 decoder allows remote
  attackers to cause a denial of service (application crash) or
  possibly execute arbitrary code via crafted OCTET STRING data.

For the oldoldstable distribution (squeeze), these problems have been fixed
in version 3.12.8-1+squeeze13.

We recommend that you upgrade your nss packages.