RedHat: RHSA-2015-1185:01 Moderate: nss security update
Summary
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.
Summary
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
References
https://access.redhat.com/security/cve/CVE-2015-4000 https://access.redhat.com/security/updates/classification/#moderate
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/
Topic
Updated nss and nss-util packages that fix one security issue, several bugsand add various enhancements are now available for Red Hat Enterprise Linux6 and 7.Red Hat Product Security has rated this update as having Moderate securityimpact. Common Vulnerability Scoring System (CVSS) base scores, which givedetailed severity ratings, are available for each vulnerability from theCVE links in the References section.
Topic
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
Bugs Fixed
1223211 - CVE-2015-4000 LOGJAM: TLS connections which support export grade DHE key-exchange are vulnerable to MITM attacks