Debian Long Term Support / LTS Security Information / 2015 / Security Information -- DLA-315-1 nss

Debian Security Advisory

DLA-315-1 nss -- LTS security update

Date Reported:

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

We recommend that you upgrade your nss packages.