[SECURITY] [DSA 3336-1] nss security update

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Debian Security Advisory DSA-3336-1                   security@debian.org
https://www.debian.org/security/                     Salvatore Bonaccorso
August 17, 2015                       https://www.debian.org/security/faq
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Package        : nss
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:

CVE-2015-2721

    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.

CVE-2015-2730

    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 oldstable distribution (wheezy), these problems have been fixed
in version 2:3.14.5-1+deb7u5.

For the stable distribution (jessie), these problems have been fixed in
version 2:3.17.2-1.1+deb8u1.

For the testing distribution (stretch), these problems have been fixed
in version 2:3.19.1-1.

For the unstable distribution (sid), these problems have been fixed in
version 2:3.19.1-1.

We recommend that you upgrade your nss packages.

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/