Bug 510234 – <app-emulation/qemu-2.0.0-r1: qcow1 - validate image size and L2 table size (CVE-2014-{0222,0223})

• Status: RESOLVED FIXED
• Product: Gentoo Security

[Description Agostino Sarubbo 2014-05-13 13:00:17 UTC]

From https://bugzilla.redhat.com/show_bug.cgi?id=1097216:

Qemu block driver for the QCOW version 1 image format is vulnerable to an
integer overflow flaw. It occurs due to weak input validations or logic errors.
Such integer overflow could lead to buffer overflows, memory corruption or
crash in Qemu instance.

An user able to alter the Qemu disk image files loaded by a guest could use
this flaw to crash the Qemu instance resulting in DoS or corrupt QEMU process
memory on the host, which could potentially result in arbitrary code execution
on the host with the privileges of the QEMU process.

Upstream fix:
-------------
  -> https://lists.gnu.org/archive/html/qemu-devel/2014-05/msg02155.html


From https://bugzilla.redhat.com/show_bug.cgi?id=1097222:

Qemu block driver for the QCOW version 1 image format is vulnerable to an
integer overflow flaw. It occurs due to weak input validations or logic errors.
Such integer overflow could lead to buffer overflows, memory corruption or
crash in Qemu instance.

An user able to alter the Qemu disk image files loaded by a guest could use
this flaw to crash the Qemu instance resulting in DoS or corrupt QEMU process
memory on the host, which could potentially result in arbitrary code execution
on the host with the privileges of the QEMU process.

Upstream fix:
-------------
  -> https://lists.gnu.org/archive/html/qemu-devel/2014-05/msg02156.html


@maintainer(s): after the bump, in case we need to stabilize the package, please let us know if it is ready for the stabilization or not.

[Comment 1 SpanKY 2014-05-25 17:29:17 UTC]

upstream has merged the fixes now for CVE-2014-0222 & CVE-2014-0223

http://git.qemu.org/?p=qemu.git;a=commitdiff;h=46485de0cb357b57373e1ca895adedf1f3ed46ec

http://git.qemu.org/?p=qemu.git;a=commitdiff;h=42eb58179b3b215bb507da3262b682b8a2ec10b5

[Comment 2 SpanKY 2014-06-06 01:16:35 UTC]

qemu-2.0.0-r1 has the fixes

[Comment 3 Yury German 2014-06-09 01:47:36 UTC]

(In reply to SpanKY from comment #2)
> qemu-2.0.0-r1 has the fixes

Please let us know if you are ready for stabilization?

[Comment 4 Agostino Sarubbo 2014-08-26 13:13:51 UTC]

security, please add it to the current glsa draft.

[Comment 5 Kristian Fiskerstrand (RETIRED) 2014-08-26 18:07:50 UTC]

Added to existing GLSA draft

[Comment 6 GLSAMaker/CVETool Bot 2014-08-31 11:31:32 UTC]

This issue was resolved and addressed in
 GLSA 201408-17 at http://security.gentoo.org/glsa/glsa-201408-17.xml
by GLSA coordinator Kristian Fiskerstrand (K_F).