VDB-9682 · CVE-2013-4153 · SA54169

libvirt 1.0.6/1.1.0 qemuAgentGetVCPUs resource management

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.2	$0-$5k	0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in libvirt 1.0.6/1.1.0. This affects the function qemuAgentGetVCPUs in the library libvirt. Executing a manipulation can lead to resource management. This vulnerability is tracked as CVE-2013-4153. No exploit exists. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability was found in libvirt 1.0.6/1.1.0 (Virtualization Software). It has been declared as critical. This vulnerability affects the function qemuAgentGetVCPUs in the library libvirt. The manipulation with an unknown input leads to a resource management vulnerability. The CWE definition for the vulnerability is CWE-399. As an impact it is known to affect confidentiality, and integrity. CVE summarizes:

Double free vulnerability in the qemuAgentGetVCPUs function in qemu/qemu_agent.c in libvirt 1.0.6 through 1.1.0 allows remote attackers to cause a denial of service (daemon crash) via a cpu count request, as demonstrated by the "virsh vcpucount dom --guest" command.

The weakness was disclosed 07/16/2013 by Petr Krempa with Red Hat as not defined mailinglist post (oss-sec). The advisory is available at seclists.org. This vulnerability was named CVE-2013-4153 since 06/12/2013. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are known, but there is no available exploit.

Applying a patch is able to eliminate this problem. The bugfix is ready for download at libvirt.org. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at OSVDB (95517†) and Secunia (SA54169†). The entry VDB-9681 is pretty similar. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Virtualization Software

Name

libvirt

Version

License

open-source

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.2

VulDB Base Score: 6.5
VulDB Temp Score: 6.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Resource management
CWE: CWE-399 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: libvirt.org

Timelineinfo

06/12/2013 🔍
07/16/2013 +34 days 🔍
07/16/2013 +0 days 🔍
07/22/2013 +6 days 🔍
07/23/2013 +1 days 🔍
09/30/2013 +69 days 🔍
05/07/2018 +1680 days 🔍

Sourcesinfo

Advisory: seclists.org
Researcher: Petr Krempa
Organization: Red Hat
Status: Not defined
Confirmation: 🔍

CVE: CVE-2013-4153 (🔍)
GCVE (CVE): GCVE-0-2013-4153
GCVE (VulDB): GCVE-100-9682
Secunia: 54169 - libvirt Denial of Service and Privilege Escalation Vulnerabilities, Not Critical
OSVDB: 95517

See also: 🔍

Entryinfo

Created: 07/23/2013 11:25
Updated: 05/07/2018 09:12
Changes: 07/23/2013 11:25 (54), 05/07/2018 09:12 (7)
Complete: 🔍
Committer:
Cache ID: 216::103

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