Bug 1066357 (CVE-2013-4531) - CVE-2013-4531 qemu: target-arm/machine.c: fix buffer overflow on invalid state load
Summary: CVE-2013-4531 qemu: target-arm/machine.c: fix buffer overflow on invalid stat...
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2013-4531
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: 1095724 1095725 1095726
Blocks: 1036654
TreeView+ depends on / blocked
 
Reported: 2014-02-18 09:41 UTC by Petr Matousek
Modified: 2021-02-17 06:51 UTC (History)
26 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2014-09-22 11:32:03 UTC
Embargoed:

Attachments (Terms of Use)

Description Petr Matousek 2014-02-18 09:41:08 UTC 
cpreg_vmstate_indexes is a VARRAY_INT32. A negative value for
cpreg_vmstate_array_len will cause a buffer overflow.

An user able to alter the savevm data (either on the disk or over the wire
during migration) could use this flaw to to corrupt QEMU process memory on
the (destination) host, which could potentially result in arbitrary code
execution on the host with the privileges of the QEMU process.

Upstream fix:
-------------
  -> http://git.qemu.org/?p=qemu.git;a=commit;h=d2ef4b61fe6d33d2a5dcf100a9b9440de341ad62
Comment 1 Petr Matousek 2014-02-18 11:19:56 UTC 
Statement:

Not vulnerable.

This issue does not affect the versions of kvm package as shipped with
Red Hat Enterprise Linux 5.

This issue does not affect the versions of qemu-kvm package as shipped
with Red Hat Enterprise Linux 6
Comment 3 Prasad Pandit 2014-05-08 12:32:20 UTC 
Created qemu tracking bugs for this issue:

Affects: fedora-all [bug 1095724]
Comment 5 Fedora Update System 2014-05-16 09:59:47 UTC 
qemu-1.6.2-5.fc20 has been pushed to the Fedora 20 stable repository.  If problems still persist, please make note of it in this bug report.
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