Bug 701240 - (CVE-2011-1763) CVE-2011-1763 kernel: xen: improper upper boundary check in get_free_port() function
CVE-2011-1763 kernel: xen: improper upper boundary check in get_free_port() f...
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
All Linux
medium Severity medium
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Assigned To: Red Hat Product Security
: Regression, Security
Depends On: 701242 701243
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Reported: 2011-05-02 05:09 EDT by Petr Matousek
Modified: 2015-07-29 08:43 EDT (History)
19 users (show)

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Doc Type: Bug Fix
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Last Closed: 2015-07-29 08:43:26 EDT
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Description Petr Matousek 2011-05-02 05:09:27 EDT
A flaw was found in the way Xen hypervisor checked for upper boundary when
getting a new event channel port. A privileged DomU user could use this
flaws to cause denial of service or, possibly, increase his privileges.
Comment 15 Petr Matousek 2011-05-03 07:48:58 EDT
This issue does not affect upstream.
Comment 16 Petr Matousek 2011-05-03 07:56:07 EDT

This issue only affects Red Hat Enterprise Linux 5 as we did not backport upstream Xen unstable commit 2dcdd2fcb945. The versions of the Linux kernel as shipped with Red Hat Enterprise Linux 4, 6, and Red Hat Enterprise MRG are not affected.
Comment 19 errata-xmlrpc 2011-05-31 10:06:16 EDT
This issue has been addressed in following products:

  Red Hat Enterprise Linux 5

Via RHSA-2011:0833 https://rhn.redhat.com/errata/RHSA-2011-0833.html

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