-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Moderate: nss security update Advisory ID: RHSA-2015:1185-01 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2015-1185.html Issue date: 2015-06-25 CVE Names: CVE-2015-4000 ===================================================================== 1. Summary: Updated nss and nss-util packages that fix one security issue, several bugs and add various enhancements are now available for Red Hat Enterprise Linux 6 and 7. Red Hat Product Security has rated this update as having Moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. 2. Relevant releases/architectures: Red Hat Enterprise Linux Client (v. 7) - x86_64 Red Hat Enterprise Linux Client Optional (v. 7) - x86_64 Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64 Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64 Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64 Red Hat Enterprise Linux Desktop Optional (v. 6) - i386, x86_64 Red Hat Enterprise Linux HPC Node (v. 6) - x86_64 Red Hat Enterprise Linux HPC Node Optional (v. 6) - x86_64 Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64 Red Hat Enterprise Linux Server (v. 7) - ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Server Optional (v. 6) - i386, ppc64, s390x, x86_64 Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64 Red Hat Enterprise Linux Workstation (v. 7) - x86_64 Red Hat Enterprise Linux Workstation Optional (v. 6) - i386, x86_64 Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64 3. Description: Network Security Services (NSS) is a set of libraries designed to support cross-platform development of security-enabled client and server applications. A flaw was found in the way the TLS protocol composes the Diffie-Hellman (DH) key exchange. A man-in-the-middle attacker could use this flaw to force the use of weak 512 bit export-grade keys during the key exchange, allowing them do decrypt all traffic. (CVE-2015-4000) Note: This update forces the TLS/SSL client implementation in NSS to reject DH key sizes below 768 bits, which prevents sessions to be downgraded to export-grade keys. Future updates may raise this limit to 1024 bits. The nss and nss-util packages have been upgraded to upstream versions 3.19.1. The upgraded versions provide a number of bug fixes and enhancements over the previous versions. Users of nss and nss-util are advised to upgrade to these updated packages, which fix these security flaws, bugs, and add these enhancements. 4. Solution: Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258 5. Bugs fixed (https://bugzilla.redhat.com/): 1223211 - CVE-2015-4000 LOGJAM: TLS connections which support export grade DHE key-exchange are vulnerable to MITM attacks 6. Package List: Red Hat Enterprise Linux Desktop (v. 6): Source: nss-3.19.1-3.el6_6.src.rpm nss-util-3.19.1-1.el6_6.src.rpm i386: nss-3.19.1-3.el6_6.i686.rpm nss-debuginfo-3.19.1-3.el6_6.i686.rpm nss-sysinit-3.19.1-3.el6_6.i686.rpm nss-tools-3.19.1-3.el6_6.i686.rpm nss-util-3.19.1-1.el6_6.i686.rpm nss-util-debuginfo-3.19.1-1.el6_6.i686.rpm x86_64: nss-3.19.1-3.el6_6.i686.rpm nss-3.19.1-3.el6_6.x86_64.rpm nss-debuginfo-3.19.1-3.el6_6.i686.rpm nss-debuginfo-3.19.1-3.el6_6.x86_64.rpm nss-sysinit-3.19.1-3.el6_6.x86_64.rpm nss-tools-3.19.1-3.el6_6.x86_64.rpm nss-util-3.19.1-1.el6_6.i686.rpm nss-util-3.19.1-1.el6_6.x86_64.rpm nss-util-debuginfo-3.19.1-1.el6_6.i686.rpm nss-util-debuginfo-3.19.1-1.el6_6.x86_64.rpm Red Hat Enterprise Linux Desktop Optional (v. 6): i386: nss-debuginfo-3.19.1-3.el6_6.i686.rpm nss-devel-3.19.1-3.el6_6.i686.rpm nss-pkcs11-devel-3.19.1-3.el6_6.i686.rpm nss-util-debuginfo-3.19.1-1.el6_6.i686.rpm nss-util-devel-3.19.1-1.el6_6.i686.rpm x86_64: nss-debuginfo-3.19.1-3.el6_6.i686.rpm nss-debuginfo-3.19.1-3.el6_6.x86_64.rpm nss-devel-3.19.1-3.el6_6.i686.rpm nss-devel-3.19.1-3.el6_6.x86_64.rpm nss-pkcs11-devel-3.19.1-3.el6_6.i686.rpm nss-pkcs11-devel-3.19.1-3.el6_6.x86_64.rpm nss-util-debuginfo-3.19.1-1.el6_6.i686.rpm nss-util-debuginfo-3.19.1-1.el6_6.x86_64.rpm nss-util-devel-3.19.1-1.el6_6.i686.rpm nss-util-devel-3.19.1-1.el6_6.x86_64.rpm Red Hat Enterprise Linux HPC Node (v. 6): Source: nss-3.19.1-3.el6_6.src.rpm nss-util-3.19.1-1.el6_6.src.rpm x86_64: nss-3.19.1-3.el6_6.i686.rpm nss-3.19.1-3.el6_6.x86_64.rpm nss-debuginfo-3.19.1-3.el6_6.i686.rpm nss-debuginfo-3.19.1-3.el6_6.x86_64.rpm nss-sysinit-3.19.1-3.el6_6.x86_64.rpm nss-tools-3.19.1-3.el6_6.x86_64.rpm nss-util-3.19.1-1.el6_6.i686.rpm nss-util-3.19.1-1.el6_6.x86_64.rpm nss-util-debuginfo-3.19.1-1.el6_6.i686.rpm nss-util-debuginfo-3.19.1-1.el6_6.x86_64.rpm Red Hat Enterprise Linux HPC Node Optional (v. 6): x86_64: nss-debuginfo-3.19.1-3.el6_6.i686.rpm nss-debuginfo-3.19.1-3.el6_6.x86_64.rpm nss-devel-3.19.1-3.el6_6.i686.rpm nss-devel-3.19.1-3.el6_6.x86_64.rpm nss-pkcs11-devel-3.19.1-3.el6_6.i686.rpm nss-pkcs11-devel-3.19.1-3.el6_6.x86_64.rpm nss-util-debuginfo-3.19.1-1.el6_6.i686.rpm nss-util-debuginfo-3.19.1-1.el6_6.x86_64.rpm nss-util-devel-3.19.1-1.el6_6.i686.rpm nss-util-devel-3.19.1-1.el6_6.x86_64.rpm Red Hat Enterprise Linux Server (v. 6): Source: nss-3.19.1-3.el6_6.src.rpm nss-util-3.19.1-1.el6_6.src.rpm i386: nss-3.19.1-3.el6_6.i686.rpm nss-debuginfo-3.19.1-3.el6_6.i686.rpm nss-devel-3.19.1-3.el6_6.i686.rpm nss-sysinit-3.19.1-3.el6_6.i686.rpm nss-tools-3.19.1-3.el6_6.i686.rpm nss-util-3.19.1-1.el6_6.i686.rpm nss-util-debuginfo-3.19.1-1.el6_6.i686.rpm nss-util-devel-3.19.1-1.el6_6.i686.rpm ppc64: nss-3.19.1-3.el6_6.ppc.rpm nss-3.19.1-3.el6_6.ppc64.rpm nss-debuginfo-3.19.1-3.el6_6.ppc.rpm nss-debuginfo-3.19.1-3.el6_6.ppc64.rpm nss-devel-3.19.1-3.el6_6.ppc.rpm nss-devel-3.19.1-3.el6_6.ppc64.rpm nss-sysinit-3.19.1-3.el6_6.ppc64.rpm nss-tools-3.19.1-3.el6_6.ppc64.rpm nss-util-3.19.1-1.el6_6.ppc.rpm nss-util-3.19.1-1.el6_6.ppc64.rpm nss-util-debuginfo-3.19.1-1.el6_6.ppc.rpm nss-util-debuginfo-3.19.1-1.el6_6.ppc64.rpm nss-util-devel-3.19.1-1.el6_6.ppc.rpm nss-util-devel-3.19.1-1.el6_6.ppc64.rpm s390x: nss-3.19.1-3.el6_6.s390.rpm nss-3.19.1-3.el6_6.s390x.rpm nss-debuginfo-3.19.1-3.el6_6.s390.rpm nss-debuginfo-3.19.1-3.el6_6.s390x.rpm nss-devel-3.19.1-3.el6_6.s390.rpm nss-devel-3.19.1-3.el6_6.s390x.rpm nss-sysinit-3.19.1-3.el6_6.s390x.rpm nss-tools-3.19.1-3.el6_6.s390x.rpm nss-util-3.19.1-1.el6_6.s390.rpm nss-util-3.19.1-1.el6_6.s390x.rpm nss-util-debuginfo-3.19.1-1.el6_6.s390.rpm nss-util-debuginfo-3.19.1-1.el6_6.s390x.rpm nss-util-devel-3.19.1-1.el6_6.s390.rpm nss-util-devel-3.19.1-1.el6_6.s390x.rpm x86_64: nss-3.19.1-3.el6_6.i686.rpm nss-3.19.1-3.el6_6.x86_64.rpm nss-debuginfo-3.19.1-3.el6_6.i686.rpm nss-debuginfo-3.19.1-3.el6_6.x86_64.rpm nss-devel-3.19.1-3.el6_6.i686.rpm nss-devel-3.19.1-3.el6_6.x86_64.rpm nss-sysinit-3.19.1-3.el6_6.x86_64.rpm nss-tools-3.19.1-3.el6_6.x86_64.rpm nss-util-3.19.1-1.el6_6.i686.rpm nss-util-3.19.1-1.el6_6.x86_64.rpm nss-util-debuginfo-3.19.1-1.el6_6.i686.rpm nss-util-debuginfo-3.19.1-1.el6_6.x86_64.rpm nss-util-devel-3.19.1-1.el6_6.i686.rpm nss-util-devel-3.19.1-1.el6_6.x86_64.rpm Red Hat Enterprise Linux Server Optional (v. 6): i386: nss-debuginfo-3.19.1-3.el6_6.i686.rpm nss-pkcs11-devel-3.19.1-3.el6_6.i686.rpm ppc64: nss-debuginfo-3.19.1-3.el6_6.ppc.rpm nss-debuginfo-3.19.1-3.el6_6.ppc64.rpm nss-pkcs11-devel-3.19.1-3.el6_6.ppc.rpm nss-pkcs11-devel-3.19.1-3.el6_6.ppc64.rpm s390x: nss-debuginfo-3.19.1-3.el6_6.s390.rpm nss-debuginfo-3.19.1-3.el6_6.s390x.rpm nss-pkcs11-devel-3.19.1-3.el6_6.s390.rpm nss-pkcs11-devel-3.19.1-3.el6_6.s390x.rpm x86_64: nss-debuginfo-3.19.1-3.el6_6.i686.rpm nss-debuginfo-3.19.1-3.el6_6.x86_64.rpm nss-pkcs11-devel-3.19.1-3.el6_6.i686.rpm nss-pkcs11-devel-3.19.1-3.el6_6.x86_64.rpm Red Hat Enterprise Linux Workstation (v. 6): Source: nss-3.19.1-3.el6_6.src.rpm nss-util-3.19.1-1.el6_6.src.rpm i386: nss-3.19.1-3.el6_6.i686.rpm nss-debuginfo-3.19.1-3.el6_6.i686.rpm nss-devel-3.19.1-3.el6_6.i686.rpm nss-sysinit-3.19.1-3.el6_6.i686.rpm nss-tools-3.19.1-3.el6_6.i686.rpm nss-util-3.19.1-1.el6_6.i686.rpm nss-util-debuginfo-3.19.1-1.el6_6.i686.rpm nss-util-devel-3.19.1-1.el6_6.i686.rpm x86_64: nss-3.19.1-3.el6_6.i686.rpm nss-3.19.1-3.el6_6.x86_64.rpm nss-debuginfo-3.19.1-3.el6_6.i686.rpm nss-debuginfo-3.19.1-3.el6_6.x86_64.rpm nss-devel-3.19.1-3.el6_6.i686.rpm nss-devel-3.19.1-3.el6_6.x86_64.rpm nss-sysinit-3.19.1-3.el6_6.x86_64.rpm nss-tools-3.19.1-3.el6_6.x86_64.rpm nss-util-3.19.1-1.el6_6.i686.rpm nss-util-3.19.1-1.el6_6.x86_64.rpm nss-util-debuginfo-3.19.1-1.el6_6.i686.rpm nss-util-debuginfo-3.19.1-1.el6_6.x86_64.rpm nss-util-devel-3.19.1-1.el6_6.i686.rpm nss-util-devel-3.19.1-1.el6_6.x86_64.rpm Red Hat Enterprise Linux Workstation Optional (v. 6): i386: nss-debuginfo-3.19.1-3.el6_6.i686.rpm nss-pkcs11-devel-3.19.1-3.el6_6.i686.rpm x86_64: nss-debuginfo-3.19.1-3.el6_6.i686.rpm nss-debuginfo-3.19.1-3.el6_6.x86_64.rpm nss-pkcs11-devel-3.19.1-3.el6_6.i686.rpm nss-pkcs11-devel-3.19.1-3.el6_6.x86_64.rpm Red Hat Enterprise Linux Client (v. 7): Source: nss-3.19.1-3.el7_1.src.rpm nss-util-3.19.1-1.el7_1.src.rpm x86_64: nss-3.19.1-3.el7_1.i686.rpm nss-3.19.1-3.el7_1.x86_64.rpm nss-debuginfo-3.19.1-3.el7_1.i686.rpm nss-debuginfo-3.19.1-3.el7_1.x86_64.rpm nss-sysinit-3.19.1-3.el7_1.x86_64.rpm nss-tools-3.19.1-3.el7_1.x86_64.rpm nss-util-3.19.1-1.el7_1.i686.rpm nss-util-3.19.1-1.el7_1.x86_64.rpm nss-util-debuginfo-3.19.1-1.el7_1.i686.rpm nss-util-debuginfo-3.19.1-1.el7_1.x86_64.rpm Red Hat Enterprise Linux Client Optional (v. 7): x86_64: nss-debuginfo-3.19.1-3.el7_1.i686.rpm nss-debuginfo-3.19.1-3.el7_1.x86_64.rpm nss-devel-3.19.1-3.el7_1.i686.rpm nss-devel-3.19.1-3.el7_1.x86_64.rpm nss-pkcs11-devel-3.19.1-3.el7_1.i686.rpm nss-pkcs11-devel-3.19.1-3.el7_1.x86_64.rpm nss-util-debuginfo-3.19.1-1.el7_1.i686.rpm nss-util-debuginfo-3.19.1-1.el7_1.x86_64.rpm nss-util-devel-3.19.1-1.el7_1.i686.rpm nss-util-devel-3.19.1-1.el7_1.x86_64.rpm Red Hat Enterprise Linux ComputeNode (v. 7): Source: nss-3.19.1-3.el7_1.src.rpm nss-util-3.19.1-1.el7_1.src.rpm x86_64: nss-3.19.1-3.el7_1.i686.rpm nss-3.19.1-3.el7_1.x86_64.rpm nss-debuginfo-3.19.1-3.el7_1.i686.rpm nss-debuginfo-3.19.1-3.el7_1.x86_64.rpm nss-sysinit-3.19.1-3.el7_1.x86_64.rpm nss-tools-3.19.1-3.el7_1.x86_64.rpm nss-util-3.19.1-1.el7_1.i686.rpm nss-util-3.19.1-1.el7_1.x86_64.rpm nss-util-debuginfo-3.19.1-1.el7_1.i686.rpm nss-util-debuginfo-3.19.1-1.el7_1.x86_64.rpm Red Hat Enterprise Linux ComputeNode Optional (v. 7): x86_64: nss-debuginfo-3.19.1-3.el7_1.i686.rpm nss-debuginfo-3.19.1-3.el7_1.x86_64.rpm nss-devel-3.19.1-3.el7_1.i686.rpm nss-devel-3.19.1-3.el7_1.x86_64.rpm nss-pkcs11-devel-3.19.1-3.el7_1.i686.rpm nss-pkcs11-devel-3.19.1-3.el7_1.x86_64.rpm nss-util-debuginfo-3.19.1-1.el7_1.i686.rpm nss-util-debuginfo-3.19.1-1.el7_1.x86_64.rpm nss-util-devel-3.19.1-1.el7_1.i686.rpm nss-util-devel-3.19.1-1.el7_1.x86_64.rpm Red Hat Enterprise Linux Server (v. 7): Source: nss-3.19.1-3.el7_1.src.rpm nss-util-3.19.1-1.el7_1.src.rpm ppc64: nss-3.19.1-3.el7_1.ppc.rpm nss-3.19.1-3.el7_1.ppc64.rpm nss-debuginfo-3.19.1-3.el7_1.ppc.rpm nss-debuginfo-3.19.1-3.el7_1.ppc64.rpm nss-devel-3.19.1-3.el7_1.ppc.rpm nss-devel-3.19.1-3.el7_1.ppc64.rpm nss-sysinit-3.19.1-3.el7_1.ppc64.rpm nss-tools-3.19.1-3.el7_1.ppc64.rpm nss-util-3.19.1-1.el7_1.ppc.rpm nss-util-3.19.1-1.el7_1.ppc64.rpm nss-util-debuginfo-3.19.1-1.el7_1.ppc.rpm nss-util-debuginfo-3.19.1-1.el7_1.ppc64.rpm nss-util-devel-3.19.1-1.el7_1.ppc.rpm nss-util-devel-3.19.1-1.el7_1.ppc64.rpm s390x: nss-3.19.1-3.el7_1.s390.rpm nss-3.19.1-3.el7_1.s390x.rpm nss-debuginfo-3.19.1-3.el7_1.s390.rpm nss-debuginfo-3.19.1-3.el7_1.s390x.rpm nss-devel-3.19.1-3.el7_1.s390.rpm nss-devel-3.19.1-3.el7_1.s390x.rpm nss-sysinit-3.19.1-3.el7_1.s390x.rpm nss-tools-3.19.1-3.el7_1.s390x.rpm nss-util-3.19.1-1.el7_1.s390.rpm nss-util-3.19.1-1.el7_1.s390x.rpm nss-util-debuginfo-3.19.1-1.el7_1.s390.rpm nss-util-debuginfo-3.19.1-1.el7_1.s390x.rpm nss-util-devel-3.19.1-1.el7_1.s390.rpm nss-util-devel-3.19.1-1.el7_1.s390x.rpm x86_64: nss-3.19.1-3.el7_1.i686.rpm nss-3.19.1-3.el7_1.x86_64.rpm nss-debuginfo-3.19.1-3.el7_1.i686.rpm nss-debuginfo-3.19.1-3.el7_1.x86_64.rpm nss-devel-3.19.1-3.el7_1.i686.rpm nss-devel-3.19.1-3.el7_1.x86_64.rpm nss-sysinit-3.19.1-3.el7_1.x86_64.rpm nss-tools-3.19.1-3.el7_1.x86_64.rpm nss-util-3.19.1-1.el7_1.i686.rpm nss-util-3.19.1-1.el7_1.x86_64.rpm nss-util-debuginfo-3.19.1-1.el7_1.i686.rpm nss-util-debuginfo-3.19.1-1.el7_1.x86_64.rpm nss-util-devel-3.19.1-1.el7_1.i686.rpm nss-util-devel-3.19.1-1.el7_1.x86_64.rpm Red Hat Enterprise Linux Server (v. 7): Source: nss-3.19.1-3.ael7b_1.src.rpm nss-util-3.19.1-1.ael7b_1.src.rpm ppc64le: nss-3.19.1-3.ael7b_1.ppc64le.rpm nss-debuginfo-3.19.1-3.ael7b_1.ppc64le.rpm nss-devel-3.19.1-3.ael7b_1.ppc64le.rpm nss-sysinit-3.19.1-3.ael7b_1.ppc64le.rpm nss-tools-3.19.1-3.ael7b_1.ppc64le.rpm nss-util-3.19.1-1.ael7b_1.ppc64le.rpm nss-util-debuginfo-3.19.1-1.ael7b_1.ppc64le.rpm nss-util-devel-3.19.1-1.ael7b_1.ppc64le.rpm Red Hat Enterprise Linux Server Optional (v. 7): ppc64: nss-debuginfo-3.19.1-3.el7_1.ppc.rpm nss-debuginfo-3.19.1-3.el7_1.ppc64.rpm nss-pkcs11-devel-3.19.1-3.el7_1.ppc.rpm nss-pkcs11-devel-3.19.1-3.el7_1.ppc64.rpm s390x: nss-debuginfo-3.19.1-3.el7_1.s390.rpm nss-debuginfo-3.19.1-3.el7_1.s390x.rpm nss-pkcs11-devel-3.19.1-3.el7_1.s390.rpm nss-pkcs11-devel-3.19.1-3.el7_1.s390x.rpm x86_64: nss-debuginfo-3.19.1-3.el7_1.i686.rpm nss-debuginfo-3.19.1-3.el7_1.x86_64.rpm nss-pkcs11-devel-3.19.1-3.el7_1.i686.rpm nss-pkcs11-devel-3.19.1-3.el7_1.x86_64.rpm Red Hat Enterprise Linux Server Optional (v. 7): ppc64le: nss-debuginfo-3.19.1-3.ael7b_1.ppc64le.rpm nss-pkcs11-devel-3.19.1-3.ael7b_1.ppc64le.rpm Red Hat Enterprise Linux Workstation (v. 7): Source: nss-3.19.1-3.el7_1.src.rpm nss-util-3.19.1-1.el7_1.src.rpm x86_64: nss-3.19.1-3.el7_1.i686.rpm nss-3.19.1-3.el7_1.x86_64.rpm nss-debuginfo-3.19.1-3.el7_1.i686.rpm nss-debuginfo-3.19.1-3.el7_1.x86_64.rpm nss-devel-3.19.1-3.el7_1.i686.rpm nss-devel-3.19.1-3.el7_1.x86_64.rpm nss-sysinit-3.19.1-3.el7_1.x86_64.rpm nss-tools-3.19.1-3.el7_1.x86_64.rpm nss-util-3.19.1-1.el7_1.i686.rpm nss-util-3.19.1-1.el7_1.x86_64.rpm nss-util-debuginfo-3.19.1-1.el7_1.i686.rpm nss-util-debuginfo-3.19.1-1.el7_1.x86_64.rpm nss-util-devel-3.19.1-1.el7_1.i686.rpm nss-util-devel-3.19.1-1.el7_1.x86_64.rpm Red Hat Enterprise Linux Workstation Optional (v. 7): x86_64: nss-debuginfo-3.19.1-3.el7_1.i686.rpm nss-debuginfo-3.19.1-3.el7_1.x86_64.rpm nss-pkcs11-devel-3.19.1-3.el7_1.i686.rpm nss-pkcs11-devel-3.19.1-3.el7_1.x86_64.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/ 7. References: https://access.redhat.com/security/cve/CVE-2015-4000 https://access.redhat.com/security/updates/classification/#moderate 8. Contact: The Red Hat security contact is . More contact details at https://access.redhat.com/security/team/contact/ Copyright 2015 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iD8DBQFVi60dXlSAg2UNWIIRAjqOAJ9fdQ42RbvWJ5RAAdEKHgCPYjidUQCePzlw +s/6Irm6/MeLWN04y51L8ww= =jxpf -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce