Bug 891922 (CVE-2013-0281) - CVE-2013-0281 pacemaker: remote DoS when CIB management is enabled caused by use of blocking sockets
Summary: CVE-2013-0281 pacemaker: remote DoS when CIB management is enabled caused by ...
Status: CLOSED ERRATA
Alias: CVE-2013-0281
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard: impact=low,public=20130214,reported=2...
Keywords: Security
Depends On: 891766 911291
Blocks: 891925 974906
TreeView+ depends on / blocked
 
Reported: 2013-01-04 13:44 UTC by Jan Lieskovsky
Modified: 2019-06-08 19:21 UTC (History)
6 users (show)

(edit)
Clone Of:
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Last Closed: 2013-11-22 05:20:30 UTC


Attachments (Terms of Use)


External Trackers
Tracker ID Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2013:1635 normal SHIPPED_LIVE Low: pacemaker security, bug fix, and enhancement update 2013-11-20 21:53:44 UTC

Description Jan Lieskovsky 2013-01-04 13:44:18 UTC
A denial of service flaw was found in the way Pacemaker, an advanced, scalable high-availability cluster resource manager for Linux-HA (Heartbeat) and/or Corosync, performed authentication and processing of remote connections in certain circumstances. In general Pacemaker used a blocking socket (without a timeout) to wait for authentication credentials to arrive. When Pacemaker was configured to allow remote Cluster Information Base (CIB) cluster's configuration / cluster's resources management, a remote attacker could use this flaw to cause Pacemaker to block indefinitely (preventing it from serving another requests).

Important Note: In the default configuration of Pacemaker in Red Hat Enterprise Linux 6 the remote CIB management feature / functionality is turned off.

Comment 1 Jan Lieskovsky 2013-01-04 13:46:15 UTC
This issue was found by David Vossel of Red Hat.

Comment 3 Jan Lieskovsky 2013-01-04 13:59:46 UTC
This issue affects the version of the pacemaker package, as shipped with Red Hat Enterprise Linux 6.

--

This issue affects the versions of the pacemaker package, as shipped with Fedora release of 16 and 17.

Comment 4 Jan Lieskovsky 2013-02-13 15:38:59 UTC
The CVE identifier of CVE-2013-0281 has been assigned to this issue.

Comment 5 Jan Lieskovsky 2013-02-14 10:27:46 UTC
Relevant upstream patch:
https://github.com/ClusterLabs/pacemaker/commit/564f7cc2a51dcd2f28ab12a13394f31be5aa3c93

Comment 6 Jan Lieskovsky 2013-02-14 16:41:57 UTC
Created pacemaker tracking bugs for this issue

Affects: fedora-all [bug 911291]

Comment 8 errata-xmlrpc 2013-11-21 11:55:19 UTC
This issue has been addressed in following products:

  Red Hat Enterprise Linux 6

Via RHSA-2013:1635 https://rhn.redhat.com/errata/RHSA-2013-1635.html

Comment 9 Huzaifa S. Sidhpurwala 2013-11-22 05:20:30 UTC
Statement:

(none)


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