Red Hat Security Advisory 2016-2779-01 - Network Security Services is a set of libraries designed to support the cross-platform development of security-enabled client and server applications. The nss-util packages provide utilities for use with the Network Security Services libraries. The following packages have been upgraded to a newer upstream version: nss, nss-util. Multiple security issues have been addressed.
df0b83d865da079f245658c46d7eff1eab3b336b9074b5a1419917a774b695c1Debian Linux Security Advisory 3688-1 - Several vulnerabilities were discovered in NSS, the cryptography library developed by the Mozilla project.
b93966cf45b459b94721e41f799657ce1d921ea91d32c39e7fe841f2d97f11e7Ubuntu Security Notice 3029-1 - Tyson Smith and Jed Davis discovered that NSS incorrectly handled memory. A remote attacker could use this issue to cause NSS to crash, resulting in a denial of service, or possibly execute arbitrary code. This update refreshes the NSS package to version 3.23 which includes the latest CA certificate bundle. As a security improvement, this update also modifies NSS behaviour to reject DH key sizes below 1024 bits, preventing a possible downgrade attack. Various other issues were also addressed.
6e601ccd1ee83f0d499b744c4b1829d9d494088ab8da32987ec0617887d2186fUbuntu Security Notice 2993-1 - Christian Holler, Gary Kwong, Jesse Ruderman, Tyson Smith, Timothy Nikkel, Sylvestre Ledru, Julian Seward, Olli Pettay, Karl Tomlinson, Christoph Diehl, Julian Hector, Jan de Mooij, Mats Palmgren, and Tooru Fujisawa discovered multiple memory safety issues in Firefox. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service via application crash, or execute arbitrary code. A buffer overflow was discovered when parsing HTML5 fragments in some circumstances. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to cause a denial of service via application crash, or execute arbitrary code. Various other issues were also addressed.
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