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[SECURITY] [DLA 315-1] nss security update

Package        : nss
Version        : 3.12.8-1+squeeze12
CVE ID         : CVE-2015-2721 CVE-2015-2730

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


    Karthikeyan Bhargavan discovered that NSS incorrectly handles state
    transitions for the TLS state machine. A man-in-the-middle attacker
    could exploit this flaw to skip the ServerKeyExchange message and
    remove the forward-secrecy property.


    Watson Ladd discovered that NSS does not properly perform Elliptical
    Curve Cryptography (ECC) multiplication, allowing a remote attacker
    to potentially spoof ECDSA signatures.

For the oldoldstable distribution (squeeze), these problems have been fixed
in version 3.12.8-1+squeeze12.

We recommend that you upgrade your nss packages.

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