RedHat: RHSA-2016-0012:01 Moderate: gnutls security update
Summary
The GnuTLS library provides support for cryptographic algorithms and for
protocols such as Transport Layer Security (TLS).
A flaw was found in the way TLS 1.2 could use the MD5 hash function for
signing ServerKeyExchange and Client Authentication packets during a TLS
handshake. A man-in-the-middle attacker able to force a TLS connection to
use the MD5 hash function could use this flaw to conduct collision attacks
to impersonate a TLS server or an authenticated TLS client. (CVE-2015-7575)
All gnutls users are advised to upgrade to these updated packages, which
contain a backported patch to correct this issue. For the update to take
effect, all applications linked to the GnuTLS library must be restarted.
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-2015-7575 https://access.redhat.com/security/updates/classification/#moderate https://access.redhat.com/articles/2112261 https://www.mitls.org/pages/attacks/SLOTH
Package List
Red Hat Enterprise Linux Desktop (v. 6):
Source:
gnutls-2.8.5-19.el6_7.src.rpm
i386:
gnutls-2.8.5-19.el6_7.i686.rpm
gnutls-debuginfo-2.8.5-19.el6_7.i686.rpm
gnutls-utils-2.8.5-19.el6_7.i686.rpm
x86_64:
gnutls-2.8.5-19.el6_7.i686.rpm
gnutls-2.8.5-19.el6_7.x86_64.rpm
gnutls-debuginfo-2.8.5-19.el6_7.i686.rpm
gnutls-debuginfo-2.8.5-19.el6_7.x86_64.rpm
gnutls-utils-2.8.5-19.el6_7.x86_64.rpm
Red Hat Enterprise Linux Desktop Optional (v. 6):
i386:
gnutls-debuginfo-2.8.5-19.el6_7.i686.rpm
gnutls-devel-2.8.5-19.el6_7.i686.rpm
gnutls-guile-2.8.5-19.el6_7.i686.rpm
x86_64:
gnutls-debuginfo-2.8.5-19.el6_7.i686.rpm
gnutls-debuginfo-2.8.5-19.el6_7.x86_64.rpm
gnutls-devel-2.8.5-19.el6_7.i686.rpm
gnutls-devel-2.8.5-19.el6_7.x86_64.rpm
gnutls-guile-2.8.5-19.el6_7.i686.rpm
gnutls-guile-2.8.5-19.el6_7.x86_64.rpm
Red Hat Enterprise Linux HPC Node (v. 6):
Source:
gnutls-2.8.5-19.el6_7.src.rpm
x86_64:
gnutls-2.8.5-19.el6_7.i686.rpm
gnutls-2.8.5-19.el6_7.x86_64.rpm
gnutls-debuginfo-2.8.5-19.el6_7.i686.rpm
gnutls-debuginfo-2.8.5-19.el6_7.x86_64.rpm
gnutls-utils-2.8.5-19.el6_7.x86_64.rpm
Red Hat Enterprise Linux HPC Node Optional (v. 6):
x86_64:
gnutls-debuginfo-2.8.5-19.el6_7.i686.rpm
gnutls-debuginfo-2.8.5-19.el6_7.x86_64.rpm
gnutls-devel-2.8.5-19.el6_7.i686.rpm
gnutls-devel-2.8.5-19.el6_7.x86_64.rpm
gnutls-guile-2.8.5-19.el6_7.i686.rpm
gnutls-guile-2.8.5-19.el6_7.x86_64.rpm
Red Hat Enterprise Linux Server (v. 6):
Source:
gnutls-2.8.5-19.el6_7.src.rpm
i386:
gnutls-2.8.5-19.el6_7.i686.rpm
gnutls-debuginfo-2.8.5-19.el6_7.i686.rpm
gnutls-devel-2.8.5-19.el6_7.i686.rpm
gnutls-utils-2.8.5-19.el6_7.i686.rpm
ppc64:
gnutls-2.8.5-19.el6_7.ppc.rpm
gnutls-2.8.5-19.el6_7.ppc64.rpm
gnutls-debuginfo-2.8.5-19.el6_7.ppc.rpm
gnutls-debuginfo-2.8.5-19.el6_7.ppc64.rpm
gnutls-devel-2.8.5-19.el6_7.ppc.rpm
gnutls-devel-2.8.5-19.el6_7.ppc64.rpm
gnutls-utils-2.8.5-19.el6_7.ppc64.rpm
s390x:
gnutls-2.8.5-19.el6_7.s390.rpm
gnutls-2.8.5-19.el6_7.s390x.rpm
gnutls-debuginfo-2.8.5-19.el6_7.s390.rpm
gnutls-debuginfo-2.8.5-19.el6_7.s390x.rpm
gnutls-devel-2.8.5-19.el6_7.s390.rpm
gnutls-devel-2.8.5-19.el6_7.s390x.rpm
gnutls-utils-2.8.5-19.el6_7.s390x.rpm
x86_64:
gnutls-2.8.5-19.el6_7.i686.rpm
gnutls-2.8.5-19.el6_7.x86_64.rpm
gnutls-debuginfo-2.8.5-19.el6_7.i686.rpm
gnutls-debuginfo-2.8.5-19.el6_7.x86_64.rpm
gnutls-devel-2.8.5-19.el6_7.i686.rpm
gnutls-devel-2.8.5-19.el6_7.x86_64.rpm
gnutls-utils-2.8.5-19.el6_7.x86_64.rpm
Red Hat Enterprise Linux Server Optional (v. 6):
i386:
gnutls-debuginfo-2.8.5-19.el6_7.i686.rpm
gnutls-guile-2.8.5-19.el6_7.i686.rpm
ppc64:
gnutls-debuginfo-2.8.5-19.el6_7.ppc.rpm
gnutls-debuginfo-2.8.5-19.el6_7.ppc64.rpm
gnutls-guile-2.8.5-19.el6_7.ppc.rpm
gnutls-guile-2.8.5-19.el6_7.ppc64.rpm
s390x:
gnutls-debuginfo-2.8.5-19.el6_7.s390.rpm
gnutls-debuginfo-2.8.5-19.el6_7.s390x.rpm
gnutls-guile-2.8.5-19.el6_7.s390.rpm
gnutls-guile-2.8.5-19.el6_7.s390x.rpm
x86_64:
gnutls-debuginfo-2.8.5-19.el6_7.i686.rpm
gnutls-debuginfo-2.8.5-19.el6_7.x86_64.rpm
gnutls-guile-2.8.5-19.el6_7.i686.rpm
gnutls-guile-2.8.5-19.el6_7.x86_64.rpm
Red Hat Enterprise Linux Workstation (v. 6):
Source:
gnutls-2.8.5-19.el6_7.src.rpm
i386:
gnutls-2.8.5-19.el6_7.i686.rpm
gnutls-debuginfo-2.8.5-19.el6_7.i686.rpm
gnutls-devel-2.8.5-19.el6_7.i686.rpm
gnutls-utils-2.8.5-19.el6_7.i686.rpm
x86_64:
gnutls-2.8.5-19.el6_7.i686.rpm
gnutls-2.8.5-19.el6_7.x86_64.rpm
gnutls-debuginfo-2.8.5-19.el6_7.i686.rpm
gnutls-debuginfo-2.8.5-19.el6_7.x86_64.rpm
gnutls-devel-2.8.5-19.el6_7.i686.rpm
gnutls-devel-2.8.5-19.el6_7.x86_64.rpm
gnutls-utils-2.8.5-19.el6_7.x86_64.rpm
Red Hat Enterprise Linux Workstation Optional (v. 6):
i386:
gnutls-debuginfo-2.8.5-19.el6_7.i686.rpm
gnutls-guile-2.8.5-19.el6_7.i686.rpm
x86_64:
gnutls-debuginfo-2.8.5-19.el6_7.i686.rpm
gnutls-debuginfo-2.8.5-19.el6_7.x86_64.rpm
gnutls-guile-2.8.5-19.el6_7.i686.rpm
gnutls-guile-2.8.5-19.el6_7.x86_64.rpm
Red Hat Enterprise Linux Client (v. 7):
Source:
gnutls-3.3.8-14.el7_2.src.rpm
x86_64:
gnutls-3.3.8-14.el7_2.i686.rpm
gnutls-3.3.8-14.el7_2.x86_64.rpm
gnutls-dane-3.3.8-14.el7_2.i686.rpm
gnutls-dane-3.3.8-14.el7_2.x86_64.rpm
gnutls-debuginfo-3.3.8-14.el7_2.i686.rpm
gnutls-debuginfo-3.3.8-14.el7_2.x86_64.rpm
gnutls-utils-3.3.8-14.el7_2.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
x86_64:
gnutls-c++-3.3.8-14.el7_2.i686.rpm
gnutls-c++-3.3.8-14.el7_2.x86_64.rpm
gnutls-debuginfo-3.3.8-14.el7_2.i686.rpm
gnutls-debuginfo-3.3.8-14.el7_2.x86_64.rpm
gnutls-devel-3.3.8-14.el7_2.i686.rpm
gnutls-devel-3.3.8-14.el7_2.x86_64.rpm
Red Hat Enterprise Linux ComputeNode (v. 7):
Source:
gnutls-3.3.8-14.el7_2.src.rpm
x86_64:
gnutls-3.3.8-14.el7_2.i686.rpm
gnutls-3.3.8-14.el7_2.x86_64.rpm
gnutls-dane-3.3.8-14.el7_2.i686.rpm
gnutls-dane-3.3.8-14.el7_2.x86_64.rpm
gnutls-debuginfo-3.3.8-14.el7_2.i686.rpm
gnutls-debuginfo-3.3.8-14.el7_2.x86_64.rpm
gnutls-utils-3.3.8-14.el7_2.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional (v. 7):
x86_64:
gnutls-c++-3.3.8-14.el7_2.i686.rpm
gnutls-c++-3.3.8-14.el7_2.x86_64.rpm
gnutls-debuginfo-3.3.8-14.el7_2.i686.rpm
gnutls-debuginfo-3.3.8-14.el7_2.x86_64.rpm
gnutls-devel-3.3.8-14.el7_2.i686.rpm
gnutls-devel-3.3.8-14.el7_2.x86_64.rpm
Red Hat Enterprise Linux Server (v. 7):
Source:
gnutls-3.3.8-14.el7_2.src.rpm
ppc64:
gnutls-3.3.8-14.el7_2.ppc.rpm
gnutls-3.3.8-14.el7_2.ppc64.rpm
gnutls-c++-3.3.8-14.el7_2.ppc.rpm
gnutls-c++-3.3.8-14.el7_2.ppc64.rpm
gnutls-dane-3.3.8-14.el7_2.ppc.rpm
gnutls-dane-3.3.8-14.el7_2.ppc64.rpm
gnutls-debuginfo-3.3.8-14.el7_2.ppc.rpm
gnutls-debuginfo-3.3.8-14.el7_2.ppc64.rpm
gnutls-devel-3.3.8-14.el7_2.ppc.rpm
gnutls-devel-3.3.8-14.el7_2.ppc64.rpm
gnutls-utils-3.3.8-14.el7_2.ppc64.rpm
ppc64le:
gnutls-3.3.8-14.el7_2.ppc64le.rpm
gnutls-c++-3.3.8-14.el7_2.ppc64le.rpm
gnutls-dane-3.3.8-14.el7_2.ppc64le.rpm
gnutls-debuginfo-3.3.8-14.el7_2.ppc64le.rpm
gnutls-devel-3.3.8-14.el7_2.ppc64le.rpm
gnutls-utils-3.3.8-14.el7_2.ppc64le.rpm
s390x:
gnutls-3.3.8-14.el7_2.s390.rpm
gnutls-3.3.8-14.el7_2.s390x.rpm
gnutls-c++-3.3.8-14.el7_2.s390.rpm
gnutls-c++-3.3.8-14.el7_2.s390x.rpm
gnutls-dane-3.3.8-14.el7_2.s390.rpm
gnutls-dane-3.3.8-14.el7_2.s390x.rpm
gnutls-debuginfo-3.3.8-14.el7_2.s390.rpm
gnutls-debuginfo-3.3.8-14.el7_2.s390x.rpm
gnutls-devel-3.3.8-14.el7_2.s390.rpm
gnutls-devel-3.3.8-14.el7_2.s390x.rpm
gnutls-utils-3.3.8-14.el7_2.s390x.rpm
x86_64:
gnutls-3.3.8-14.el7_2.i686.rpm
gnutls-3.3.8-14.el7_2.x86_64.rpm
gnutls-c++-3.3.8-14.el7_2.i686.rpm
gnutls-c++-3.3.8-14.el7_2.x86_64.rpm
gnutls-dane-3.3.8-14.el7_2.i686.rpm
gnutls-dane-3.3.8-14.el7_2.x86_64.rpm
gnutls-debuginfo-3.3.8-14.el7_2.i686.rpm
gnutls-debuginfo-3.3.8-14.el7_2.x86_64.rpm
gnutls-devel-3.3.8-14.el7_2.i686.rpm
gnutls-devel-3.3.8-14.el7_2.x86_64.rpm
gnutls-utils-3.3.8-14.el7_2.x86_64.rpm
Red Hat Enterprise Linux Workstation (v. 7):
Source:
gnutls-3.3.8-14.el7_2.src.rpm
x86_64:
gnutls-3.3.8-14.el7_2.i686.rpm
gnutls-3.3.8-14.el7_2.x86_64.rpm
gnutls-c++-3.3.8-14.el7_2.i686.rpm
gnutls-c++-3.3.8-14.el7_2.x86_64.rpm
gnutls-dane-3.3.8-14.el7_2.i686.rpm
gnutls-dane-3.3.8-14.el7_2.x86_64.rpm
gnutls-debuginfo-3.3.8-14.el7_2.i686.rpm
gnutls-debuginfo-3.3.8-14.el7_2.x86_64.rpm
gnutls-devel-3.3.8-14.el7_2.i686.rpm
gnutls-devel-3.3.8-14.el7_2.x86_64.rpm
gnutls-utils-3.3.8-14.el7_2.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 gnutls packages that fix one security issue are now available forRed Hat Enterprise Linux 6 and 7.Red Hat Product Security has rated this update as having Moderate securityimpact. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available from the CVE link in theReferences 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 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
Bugs Fixed
1289841 - CVE-2015-7575 TLS 1.2 Transcipt Collision attacks against MD5 in key exchange protocol (SLOTH)