Issued:
2014-10-16
Updated:
2014-10-16

RHSA-2014:1653 - Moderate: openssl security update

Synopsis

Moderate: openssl security update

Type/Severity

Security Advisory Moderate

Topic

Updated openssl packages that contain a backported patch to mitigate the CVE-2014-3566 issue are now available for Red Hat Enterprise Linux 5.

Red Hat Product Security has rated this update as having Moderate security impact.

Description

OpenSSL is a toolkit that implements the Secure Sockets Layer (SSL), Transport Layer Security (TLS), and Datagram Transport Layer Security (DTLS) protocols, as well as a full-strength, general purpose cryptography library.

This update adds support for the TLS Fallback Signaling Cipher Suite Value (TLS_FALLBACK_SCSV), which can be used to prevent protocol downgrade attacks against applications which re-connect using a lower SSL/TLS protocol version when the initial connection indicating the highest supported protocol version fails.

This can prevent a forceful downgrade of the communication to SSL 3.0. The SSL 3.0 protocol was found to be vulnerable to the padding oracle attack when using block cipher suites in cipher block chaining (CBC) mode. This issue is identified as CVE-2014-3566, and also known under the alias POODLE. This SSL 3.0 protocol flaw will not be addressed in a future update; it is recommended that users configure their applications to require at least TLS protocol version 1.0 for secure communication.

For additional information about this flaw, see the Knowledgebase article at https://access.redhat.com/articles/1232123

All OpenSSL users are advised to upgrade to these updated packages, which contain a backported patch to mitigate the CVE-2014-3566 issue. For the update to take effect, all services linked to the OpenSSL library (such as httpd and other SSL-enabled services) must be restarted or the system rebooted.

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/articles/11258

Affected Products

ProductVersionArch
Red Hat Enterprise Linux for Power, big endian5ppc
Red Hat Enterprise Linux for IBM z Systems5s390x
Red Hat Enterprise Linux Workstation5x86_64
Red Hat Enterprise Linux Workstation5i386
Red Hat Enterprise Linux Server5x86_64
Red Hat Enterprise Linux Server5ia64
Red Hat Enterprise Linux Server5i386
Red Hat Enterprise Linux Server from RHUI5x86_64
Red Hat Enterprise Linux Server from RHUI5i386
Red Hat Enterprise Linux Desktop5x86_64
Red Hat Enterprise Linux Desktop5i386

Updated Packages

  • openssl-0.9.8e-31.el5_11.s390x.rpm
  • openssl-0.9.8e-31.el5_11.ia64.rpm
  • openssl-0.9.8e-31.el5_11.x86_64.rpm
  • openssl-0.9.8e-31.el5_11.ppc.rpm
  • openssl-debuginfo-0.9.8e-31.el5_11.i686.rpm
  • openssl-0.9.8e-31.el5_11.s390.rpm
  • openssl-debuginfo-0.9.8e-31.el5_11.x86_64.rpm
  • openssl-devel-0.9.8e-31.el5_11.s390x.rpm
  • openssl-devel-0.9.8e-31.el5_11.s390.rpm
  • openssl-debuginfo-0.9.8e-31.el5_11.s390.rpm
  • openssl-perl-0.9.8e-31.el5_11.s390x.rpm
  • openssl-debuginfo-0.9.8e-31.el5_11.ppc64.rpm
  • openssl-perl-0.9.8e-31.el5_11.ppc.rpm
  • openssl-devel-0.9.8e-31.el5_11.ppc.rpm
  • openssl-perl-0.9.8e-31.el5_11.x86_64.rpm
  • openssl-debuginfo-0.9.8e-31.el5_11.s390x.rpm
  • openssl-debuginfo-0.9.8e-31.el5_11.i386.rpm
  • openssl-0.9.8e-31.el5_11.src.rpm
  • openssl-perl-0.9.8e-31.el5_11.i386.rpm
  • openssl-devel-0.9.8e-31.el5_11.i386.rpm
  • openssl-0.9.8e-31.el5_11.ppc64.rpm
  • openssl-debuginfo-0.9.8e-31.el5_11.ia64.rpm
  • openssl-devel-0.9.8e-31.el5_11.ia64.rpm
  • openssl-devel-0.9.8e-31.el5_11.x86_64.rpm
  • openssl-perl-0.9.8e-31.el5_11.ia64.rpm
  • openssl-devel-0.9.8e-31.el5_11.ppc64.rpm
  • openssl-0.9.8e-31.el5_11.i386.rpm
  • openssl-0.9.8e-31.el5_11.i686.rpm
  • openssl-debuginfo-0.9.8e-31.el5_11.ppc.rpm

Fixes

CVEs

(none)

References

Additional information