Bug 1078232 – CVE-2014-0146 Qemu: qcow2: NULL dereference in qcow2_open() error path

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Bug 1078232 - (CVE-2014-0146) CVE-2014-0146 Qemu: qcow2: NULL dereference in qcow2_open() error path

Summary:	CVE-2014-0146 Qemu: qcow2: NULL dereference in qcow2_open() error path

Status:	CLOSED ERRATA

Aliases:	CVE-2014-0146

Product:	Security Response
Classification:	Other
Component:	vulnerability (Show other bugs)
Sub Component:
Version:	unspecified
Hardware:	All Linux

Priority	low Severity low
Target Milestone:	---
Target Release:	---
Assigned To:	Red Hat Product Security
QA Contact:
Docs Contact:

URL:
Whiteboard:	impact=low,public=20140326,reported=2...
Keywords:	Security

Depends On:	1079327 1079329 1079330 1079331 1079333 1086713 1087112 1087126 1087140 1108461
Blocks:	1066967 1086694
	Show dependency tree / graph

Reported:	2014-03-19 08:45 EDT by Prasad J Pandit
Modified:	2016-01-28 04:33 EST (History)
CC List:	15 users (show)

See Also:
Fixed In Version:
Doc Type:	Bug Fix
Doc Text:
Story Points:	---
Clone Of:
Environment:
Last Closed:	2016-01-27 08:09:16 EST
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

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External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHSA-2014:0420	normal	SHIPPED_LIVE	Moderate: qemu-kvm security update	2014-04-22 17:39:52 EDT
Red Hat Product Errata	RHSA-2014:0421	normal	SHIPPED_LIVE	Moderate: qemu-kvm-rhev security update	2014-04-22 17:39:32 EDT
Red Hat Product Errata	RHSA-2014:0434	normal	SHIPPED_LIVE	Moderate: qemu-kvm-rhev security update	2014-04-24 17:35:56 EDT
Red Hat Product Errata	RHSA-2014:0435	normal	SHIPPED_LIVE	Moderate: qemu-kvm-rhev security update	2014-04-24 17:35:47 EDT
Red Hat Product Errata	RHSA-2014:0674	normal	SHIPPED_LIVE	Moderate: rhev-hypervisor6 3.4.0 security, bug fix, and enhancement update	2014-06-09 14:35:12 EDT

Groups: None (edit)

Description Prasad J Pandit 2014-03-19 08:45:43 EDT

Qemu block driver for the QCOW version 2 format is vulnerable to a NULL pointer
dereference flaw. It could occur in case of an error in reading a qcow2 image
file, after the 'snapshot_offset' & 'nb_snapshots' fields have been
initialised.

An user able to alter the Qemu disk image could use this flaw to crash the Qemu
instance resulting in Dos.

Upstream fix:
-------------
qcow2: Fix NULL dereference in qcow2_open() error path
  -> http://git.qemu.org/?p=qemu.git;a=commit;h=11b128f4062dd7f89b14abc8877ff20d41b28be9

Comment 1 Prasad J Pandit 2014-03-21 06:32:44 EDT

Statement:

This issue affects the versions of kvm package as shipped with Red Hat
Enterprise Linux 5.

This issue affects the versions of qemu-kvm package as shipped with Red Hat
Enterprise Linux 6.

Comment 5 Prasad J Pandit 2014-03-25 09:13:37 EDT

Acknowledgement:

This issue was discovered by Kevin Wolf of Red Hat Inc.

Comment 6 Prasad J Pandit 2014-04-11 07:25:57 EDT

Created qemu tracking bugs for this issue:

Affects: fedora-all [bug 1086713]

Comment 10 errata-xmlrpc 2014-04-22 13:41:03 EDT

This issue has been addressed in following products:

  RHEV-H and Agents for RHEL-6

Via RHSA-2014:0421 https://rhn.redhat.com/errata/RHSA-2014-0421.html

Comment 11 errata-xmlrpc 2014-04-22 13:41:55 EDT

This issue has been addressed in following products:

  Red Hat Enterprise Linux 6

Via RHSA-2014:0420 https://rhn.redhat.com/errata/RHSA-2014-0420.html

Comment 12 errata-xmlrpc 2014-04-24 13:37:16 EDT

This issue has been addressed in following products:

  OpenStack 3 for RHEL 6

Via RHSA-2014:0435 https://rhn.redhat.com/errata/RHSA-2014-0435.html

Comment 13 errata-xmlrpc 2014-04-24 13:38:19 EDT

This issue has been addressed in following products:

  OpenStack 4 for RHEL 6

Via RHSA-2014:0434 https://rhn.redhat.com/errata/RHSA-2014-0434.html

Comment 14 Fedora Update System 2014-05-01 18:26:45 EDT

qemu-1.6.2-4.fc20 has been pushed to the Fedora 20 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 15 errata-xmlrpc 2014-06-09 10:37:29 EDT

This issue has been addressed in following products:

  RHEV-H and Agents for RHEL-6

Via RHSA-2014:0674 https://rhn.redhat.com/errata/RHSA-2014-0674.html

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