Bug 906323 (CVE-2013-0215) - CVE-2013-0215 xen: oxenstored incorrect handling of certain Xenbus ring states
Summary: CVE-2013-0215 xen: oxenstored incorrect handling of certain Xenbus ring states
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2013-0215
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 907888
Blocks: 906326
TreeView+ depends on / blocked
 
Reported: 2013-01-31 13:20 UTC by Petr Matousek
Modified: 2023-05-11 21:44 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2019-06-10 10:59:59 UTC
Embargoed:

Attachments (Terms of Use)

Description Petr Matousek 2013-01-31 13:20:16 UTC 
The oxenstored daemon (the ocaml version of the xenstore daemon) does
not correctly handle unusual or malicious contents in the xenstore
ring.  A malicious guest can exploit this to cause oxenstored to read
past the end of the ring (and very likely crash) or to allocate large
amounts of RAM.

A malicious guest administrator can mount a denial of service attack
affecting domain control and management functions.

Acknowledgements:

Red Hat would like to thank the Xen project for reporting this issue.
Comment 2 Petr Matousek 2013-01-31 13:26:11 UTC 
Statement:

This issue did not affect the versions of the xen package as shipped with Red Hat Enterprise Linux 5.
Comment 3 Petr Matousek 2013-02-05 13:29:35 UTC 
Created xen tracking bugs for this issue

Affects: fedora-all [bug 907888]
Comment 4 Fedora Update System 2013-02-16 01:23:59 UTC 
xen-4.1.4-4.fc17 has been pushed to the Fedora 17 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 5 Fedora Update System 2013-02-18 06:49:21 UTC 
xen-4.2.1-7.fc18 has been pushed to the Fedora 18 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 6 Jan Lieskovsky 2013-03-07 12:31:36 UTC 
Relevant upstream patches are as follows:
  http://xenbits.xen.org/gitweb/?p=xen.git;a=commitdiff;h=40f9c5e0a6d15b4ca1f6d4ed3a46f0871520eab5
  http://xenbits.xen.org/gitweb/?p=xen.git;a=commitdiff;h=61401264eb00fae4ee4efc8e9a5067449283207b
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