mirror of
https://github.com/xcat2/xcat-core.git
synced 2025-11-04 13:22:36 +00:00
29 lines
1.0 KiB
ReStructuredText
29 lines
1.0 KiB
ReStructuredText
2016-01-15 - OpenSSL Vulnerabilities (SLOTH)
|
|
============================================
|
|
|
|
A detailed description of this issue can be seen in the following blog posting: http://www.mitls.org/pages/attacks/SLOTH
|
|
|
|
Advisory CVEs
|
|
-------------
|
|
|
|
`CVE-2015-7575 <https://access.redhat.com/security/cve/CVE-2015-7575>`_ - TLS 1.2 Transcipt Collision attacks against MD5 in key exchange protocol (SLOTH)
|
|
|
|
Action
|
|
------
|
|
|
|
xCAT uses OpenSSL for client-server communication but **does not** ship it.
|
|
|
|
It is highly recommended to keep your OpenSSL levels up-to-date with the indicated versions in the security bulletins to prevent any potential security threats. Obtain the updated software packages from your Operating system distribution channels.
|
|
|
|
|
|
|
|
Disable MD5 authentication in the cipher list using the site table keyword ``xcatsslciphers``.
|
|
|
|
1. Check if MD5 is already disabled: ``tabdump site | grep xcatssl``
|
|
|
|
2. If nothing is set, add ``ALL:!MD5`` to the cipher list: ``chtab key=xcatsslciphers site.value='ALL:!MD5'``
|
|
|
|
3. Restart xcat: ``service xcatd restart``
|
|
|
|
|