Linux Foundation Xen qemu-ga qga-fsfreeze-hook.log access control

CVSS Meta Temp Score
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CTI Interest Score
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A vulnerability has been found in Linux Foundation Xen (Virtualization Software) (version unknown) and classified as critical. Affected by this vulnerability is an unknown function of the file qemu-ga.log/qga.state/qga-fsfreeze-hook.log of the component qemu-ga. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-264. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was disclosed 05/06/2013 by Laszlo Ersek with Red Hat as confirmed mailinglist post (oss-sec). The advisory is shared at This vulnerability is known as CVE-2013-2007 since 02/19/2013. An attack has to be approached locally. The exploitation doesn't need any form of authentication. Technical details and also a public exploit are known. MITRE ATT&CK project uses the attack technique T1068 for this issue.

After immediately, there has been an exploit disclosed. It is possible to download the exploit at It is declared as proof-of-concept. We expect the 0-day to have been worth approximately $5k-$25k. By approaching the search of inurl:qemu-ga.log/qga.state/qga-fsfreeze-hook.log it is possible to find vulnerable targets with Google Hacking. The vulnerability scanner Nessus provides a plugin with the ID 68831 (Oracle Linux 6 : qemu-kvm (ELSA-2013-0896)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Oracle Linux Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 166636 (SUSE Enterprise Linux Security Update for Xen (SUSE-SU-2013:1923-1)).

Upgrading eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (84047) and Tenable (68831). The entries 11257 and 64149 are pretty similar.






  • open-source

CPE 2.3info

CPE 2.2info


VulDB Meta Base Score: 8.4
VulDB Meta Temp Score: 7.3

VulDB Base Score: 8.4
VulDB Temp Score: 7.3
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Class: Access control
CWE: CWE-264
ATT&CK: T1068

Local: Yes
Remote: No

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍
Google Hack: 🔍

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Nessus ID: 68831
Nessus Name: Oracle Linux 6 : qemu-kvm (ELSA-2013-0896)
Nessus File: 🔍
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OpenVAS ID: 881744
OpenVAS Name: CentOS Update for qemu-guest-agent CESA-2013:0896 centos6
OpenVAS File: 🔍
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Threat Intelligenceinfo

Interest: 🔍
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Recommended: Upgrade
Status: 🔍

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02/19/2013 🔍
04/24/2013 +64 days 🔍
05/06/2013 +12 days 🔍
05/06/2013 +0 days 🔍
05/06/2013 +0 days 🔍
05/06/2013 +0 days 🔍
05/07/2013 +1 days 🔍
05/08/2013 +1 days 🔍
05/21/2013 +13 days 🔍
06/09/2013 +19 days 🔍
07/12/2013 +33 days 🔍
05/10/2021 +2859 days 🔍



Researcher: Laszlo Ersek
Organization: Red Hat
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2013-2007 (🔍)

X-Force: 84047 - Qemu privilege escalation, Low Risk
SecurityTracker: 1028521
Vulnerability Center: 39907 - Qemu Through 1.4.1 Local File Read and Write When Started in Daemon Mode, Medium
SecurityFocus: 59675 - QEMU Guest Agent CVE-2013-2007 Insecure File Permissions Vulnerability
Secunia: 53325 - Qemu Guest Agent Insecure Permissions Weakness, Not Critical
OSVDB: 93032

scip Labs:
See also: 🔍


Created: 05/08/2013 05:08 PM
Updated: 05/10/2021 02:35 PM
Changes: 05/08/2013 05:08 PM (88), 05/01/2017 12:04 PM (4), 05/10/2021 02:32 PM (3), 05/10/2021 02:35 PM (1)
Complete: 🔍


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