Bug 1057140 (CVE-2014-1642) - CVE-2014-1642 xen: out-of-memory condition yielding memory corruption during IRQ setup
Summary: CVE-2014-1642 xen: out-of-memory condition yielding memory corruption during ...
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2014-1642
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1057142
Blocks: 1057145
TreeView+ depends on / blocked
 
Reported: 2014-01-23 14:03 UTC by Petr Matousek
Modified: 2021-02-17 06:56 UTC (History)
18 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2014-01-23 14:04:20 UTC


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Description Petr Matousek 2014-01-23 14:03:13 UTC
When setting up the IRQ for a passed through physical device, a flaw in the error handling could result in a memory allocation being used after it is freed, and then freed a second time.

Malicious guest administrators can trigger a use-after-free error, resulting in hypervisor memory corruption.

Reference:
http://www.openwall.com/lists/oss-security/2014/01/23/2

CVE assignment:
http://www.openwall.com/lists/oss-security/2014/01/23/3

Acknowledgements:

Red Hat would like to thank the Xen project for reporting this issue.

Comment 1 Petr Matousek 2014-01-23 14:04:20 UTC
Statement:

Not vulnerable.

This issue did not affect the versions of the kernel-xen package as shipped with Red Hat Enterprise Linux 5.

This issue did not affect Red Hat Enterprise Linux 6 and Red Hat Enterprise MRG 2 as we did not have support for Xen hypervisor.

Comment 2 Petr Matousek 2014-01-23 14:04:50 UTC
Created xen tracking bugs for this issue:

Affects: fedora-all [bug 1057142]


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