DSA-3336-1 nss -- security update

Debian Security Advisory

DSA-3336-1 nss -- security update

Date Reported:

17 Aug 2015

Affected Packages:

nss

Vulnerable:

Yes

Security database references:

In Mitre's CVE dictionary: CVE-2015-2721, CVE-2015-2730.

More information:

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.