Sigurnosni nedostaci programskog paketa gnutls

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Red Hat Security Advisory

Synopsis: Important: gnutls security update
Advisory ID: RHSA-2014:0684-01
Product: Red Hat Enterprise Linux
Advisory URL: https://rhn.redhat.com/errata/RHSA-2014-0684.html
Issue date: 2014-06-10
CVE Names: CVE-2014-3465 CVE-2014-3466
=====================================================================

1. Summary:

Updated gnutls packages that fix two security issues are now available for
Red Hat Enterprise Linux 7.

The Red Hat Security Response Team has rated this update as having
Important 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 Server (v. 7) – ppc64, s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 7) – x86_64

3. Description:

The GnuTLS library provides support for cryptographic algorithms and for
protocols such as Transport Layer Security (TLS).

A flaw was found in the way GnuTLS parsed session IDs from ServerHello
messages of the TLS/SSL handshake. A malicious server could use this flaw
to send an excessively long session ID value, which would trigger a buffer
overflow in a connecting TLS/SSL client application using GnuTLS, causing
the client application to crash or, possibly, execute arbitrary code.
(CVE-2014-3466)

A NULL pointer dereference flaw was found in the way GnuTLS parsed X.509
certificates. A specially crafted certificate could cause a server or
client application using GnuTLS to crash. (CVE-2014-3465)

Red Hat would like to thank GnuTLS upstream for reporting these issues.
Upstream acknowledges Joonas Kuorilehto of Codenomicon as the original
reporter of CVE-2014-3466.

Users of GnuTLS are advised to upgrade to these updated packages, which
correct these issues. For the update to take effect, all applications
linked to the GnuTLS library must be restarted.

4. Solution:

Before applying this update, make sure all previously released errata
relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to use the
Red Hat Network to apply this update are available at
https://access.redhat.com/site/articles/11258

5. Bugs fixed (https://bugzilla.redhat.com/):

1101734 – CVE-2014-3465 gnutls: gnutls_x509_dn_oid_name NULL pointer dereference
1101932 – CVE-2014-3466 gnutls: insufficient session id length check in _gnutls_read_server_hello (GNUTLS-SA-2014-3)

6. Package List:

Red Hat Enterprise Linux Client (v. 7):

Source:
gnutls-3.1.18-9.el7_0.src.rpm

x86_64:
gnutls-3.1.18-9.el7_0.i686.rpm
gnutls-3.1.18-9.el7_0.x86_64.rpm
gnutls-dane-3.1.18-9.el7_0.i686.rpm
gnutls-dane-3.1.18-9.el7_0.x86_64.rpm
gnutls-debuginfo-3.1.18-9.el7_0.i686.rpm
gnutls-debuginfo-3.1.18-9.el7_0.x86_64.rpm
gnutls-utils-3.1.18-9.el7_0.x86_64.rpm

Red Hat Enterprise Linux Client Optional (v. 7):

x86_64:
gnutls-c++-3.1.18-9.el7_0.i686.rpm
gnutls-c++-3.1.18-9.el7_0.x86_64.rpm
gnutls-debuginfo-3.1.18-9.el7_0.i686.rpm
gnutls-debuginfo-3.1.18-9.el7_0.x86_64.rpm
gnutls-devel-3.1.18-9.el7_0.i686.rpm
gnutls-devel-3.1.18-9.el7_0.x86_64.rpm

Red Hat Enterprise Linux ComputeNode (v. 7):

Source:
gnutls-3.1.18-9.el7_0.src.rpm

Red Hat Enterprise Linux ComputeNode Optional (v. 7):

Red Hat Enterprise Linux Server (v. 7):

Source:
gnutls-3.1.18-9.el7_0.src.rpm

ppc64:
gnutls-3.1.18-9.el7_0.ppc.rpm
gnutls-3.1.18-9.el7_0.ppc64.rpm
gnutls-c++-3.1.18-9.el7_0.ppc.rpm
gnutls-c++-3.1.18-9.el7_0.ppc64.rpm
gnutls-dane-3.1.18-9.el7_0.ppc.rpm
gnutls-dane-3.1.18-9.el7_0.ppc64.rpm
gnutls-debuginfo-3.1.18-9.el7_0.ppc.rpm
gnutls-debuginfo-3.1.18-9.el7_0.ppc64.rpm
gnutls-devel-3.1.18-9.el7_0.ppc.rpm
gnutls-devel-3.1.18-9.el7_0.ppc64.rpm
gnutls-utils-3.1.18-9.el7_0.ppc64.rpm

s390x:
gnutls-3.1.18-9.el7_0.s390.rpm
gnutls-3.1.18-9.el7_0.s390x.rpm
gnutls-c++-3.1.18-9.el7_0.s390.rpm
gnutls-c++-3.1.18-9.el7_0.s390x.rpm
gnutls-dane-3.1.18-9.el7_0.s390.rpm
gnutls-dane-3.1.18-9.el7_0.s390x.rpm
gnutls-debuginfo-3.1.18-9.el7_0.s390.rpm
gnutls-debuginfo-3.1.18-9.el7_0.s390x.rpm
gnutls-devel-3.1.18-9.el7_0.s390.rpm
gnutls-devel-3.1.18-9.el7_0.s390x.rpm
gnutls-utils-3.1.18-9.el7_0.s390x.rpm

x86_64:
gnutls-3.1.18-9.el7_0.i686.rpm
gnutls-3.1.18-9.el7_0.x86_64.rpm
gnutls-c++-3.1.18-9.el7_0.i686.rpm
gnutls-c++-3.1.18-9.el7_0.x86_64.rpm
gnutls-dane-3.1.18-9.el7_0.i686.rpm
gnutls-dane-3.1.18-9.el7_0.x86_64.rpm
gnutls-debuginfo-3.1.18-9.el7_0.i686.rpm
gnutls-debuginfo-3.1.18-9.el7_0.x86_64.rpm
gnutls-devel-3.1.18-9.el7_0.i686.rpm
gnutls-devel-3.1.18-9.el7_0.x86_64.rpm
gnutls-utils-3.1.18-9.el7_0.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 7):

Source:
gnutls-3.1.18-9.el7_0.src.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/#package

7. References:

https://www.redhat.com/security/data/cve/CVE-2014-3465.html
https://www.redhat.com/security/data/cve/CVE-2014-3466.html
https://access.redhat.com/security/updates/classification/#important

8. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

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