Bug 1066404 (CVE-2013-4533) - CVE-2013-4533 qemu: pxa2xx: buffer overrun on incoming migration
Summary: CVE-2013-4533 qemu: pxa2xx: buffer overrun on incoming migration
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2013-4533
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: impact=moderate,public=20131203,repor...
Depends On: 1095767 1095768 1095769
Blocks: 1036654
TreeView+ depends on / blocked
 
Reported: 2014-02-18 10:24 UTC by Petr Matousek
Modified: 2019-06-08 19:55 UTC (History)
25 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2014-06-10 12:07:48 UTC


Attachments (Terms of Use)

Description Petr Matousek 2014-02-18 10:24:41 UTC
s->rx_level is read from the wire and used to determine how many bytes
to subsequently read into s->rx_fifo[]. If s->rx_level exceeds the
length of s->rx_fifo[] the buffer can be overrun with arbitrary data
from the wire.

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=caa881abe0e01f9931125a0977ec33c5343e4aa7

Comment 1 Petr Matousek 2014-02-18 11:41:27 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 J Pandit 2014-05-08 13:35:02 UTC
Created qemu tracking bugs for this issue:

Affects: fedora-all [bug 1095767]

Comment 4 Fedora Update System 2014-05-16 09:58:24 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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