[El-errata] New openssl updates available via Ksplice (ELSA-2018-4249)

[Errata Announcements for Oracle Linux]

Synopsis: ELSA-2018-4249 can now be patched using Ksplice
CVEs: CVE-2018-0732 CVE-2018-0737

Users with Oracle Linux Premier Support can now use Ksplice to patch
against the latest Oracle Linux Security Advisory, ELSA-2018-4249.

INSTALLING THE UPDATES

We recommend that all users of Ksplice on OL 7 install these updates.

You can install these updates by running:

# ksplice -y user upgrade

32-bit applications should be restarted after upgrading the on-disk
openssl RPMs and statically linked applications using
openssl should be rebuilt to include these fixes.

Ksplice user-space patching requires installation of Ksplice-aware
packages and the system must be rebooted after the first installation of
these packages.  Refer to the installation instructions for the Enhanced
Ksplice Client in the Ksplice User's Guide for more details.  Systems
may be prepared for Ksplice patching by installing the Ksplice aware
packages in advance, prior to installing the enhanced Ksplice client.

DESCRIPTION

* CVE-2018-0732: Denial-of-service in Diffie Hellman key exchange.

A missing range check when performing a Diffie Hellman key exchange
handshake could result in excessive processing and a hang.  A malicious
server could use this flaw to hang the client.


* CVE-2018-0737: Side channel information leak in RSA key generation.

Missing constant time operations when generating an RSA key could allow
a malicious local user to determine the private key being generated by
another process.

SUPPORT

Ksplice support is available at ksplice-support_ww at oracle.com.