-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - ------------------------------------------------------------------------- Debian Security Advisory DSA-3688-1 security@xxxxxxxxxx https://www.debian.org/security/ Florian Weimer October 05, 2016 https://www.debian.org/security/faq - ------------------------------------------------------------------------- Package : nss CVE ID : CVE-2015-4000 CVE-2015-7181 CVE-2015-7182 CVE-2015-7575 CVE-2016-1938 CVE-2016-1950 CVE-2016-1978 CVE-2016-1979 CVE-2016-2834 Debian Bug : 583651 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 implements RSA-CRT leak hardening, so RSA private keys are not directly disclosed by this issue. CVE-2016-1978 Eric Rescorla discovered a user-after-free vulnerability in the implementation of ECDH-based TLS handshakes, with unknown consequences. CVE-2016-1979 Tim Taubert discovered a use-after-free vulnerability in ASN.1 DER processing, with application-specific impact. CVE-2016-2834 Tyson Smith and Jed Davis discovered unspecified memory-safety bugs in NSS. In addition, the NSS library did not ignore environment variables in processes which underwent a SUID/SGID/AT_SECURE transition at process start. In certain system configurations, this allowed local users to escalate their privileges. This update contains further correctness and stability fixes without immediate security impact. For the stable distribution (jessie), these problems have been fixed in version 2:3.26-1+debu8u1. For the unstable distribution (sid), these problems have been fixed in version 2:3.23-1. 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/ Mailing list: debian-security-announce@xxxxxxxxxxxxxxxx -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (GNU/Linux) iQEcBAEBAgAGBQJX9WZNAAoJEL97/wQC1SS+XQ8H/08M1lp4/xcBgntng0pWBoiP cGiY87w40R14UNwFnPaQzVEiKWC8CsnjXElbb6Dod6iNO35CGG4aRmMKI18LzRL/ nDTScYZrXQOpiXOOW0gzZY2opM5QQH/rDTyYh8K9pxQTc0wnDceczsEkvjj3EgzK mklNZ0WdCv4Y3/vwyxD5tfbPcI+dB5UxgmSCaY985wrqq+gCQ04fl5jwJCpBjtAL 8Hev7VFabUfp7L5m+s4OWAT9vMMNKokQ6PPOrUt2azVdpAW4eWOJPQGADnVfhJht 8BRyCLBPE0aJcgHIYIQcVHjs6pIig7ewqCPQSzdCaKTNvTMZe/1aKG38a/BZ5/w= =OQ0j -----END PGP SIGNATURE-----
