Debian: DSA-3690-1 Urgent: OpenSSL Vulnerabilities and Exposure Risks

Several vulnerabilities were discovered in NSS, the cryptography
library developed by the Mozilla project.

CVE-2015-4000

David Adrian et al. reported that it may be feasible to attack
Diffie-Hellman-based cipher suites in certain circumstances,
compromising the confidentiality and integrity of data encrypted
with Transport Layer Security (TLS).

CVE-2015-7181
CVE-2015-7182
CVE-2016-1950

Tyson Smith, David Keeler, and Francis Gabriel discovered
heap-based buffer overflows in the ASN.1 DER parser, potentially
leading to arbitrary code execution.

CVE-2015-7575

Karthikeyan Bhargavan discovered that TLS client implementation
accepted MD5-based signatures for TLS 1.2 connections with forward
secrecy, weakening the intended security strength of TLS
connections.

CVE-2016-1938

Hanno Boeck discovered that NSS miscomputed the result of integer
division for certain inputs. This could weaken the cryptographic
protections provided by NSS. However, NSS implement...