VDB-9681 · CVE-2013-4154 · SA54169

libvirt up to 1.1.0 qemu/qemu_agent.c qemuAgentCommand mon denial of service

CVSS Meta Temp Score
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CTI Interest Score
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7.2$0-$5k0.00

Summaryinfo

A vulnerability was found in libvirt up to 1.1.0. It has been rated as critical. Affected by this issue is the function qemuAgentCommand of the file qemu/qemu_agent.c. Performing a manipulation of the argument mon results in denial of service. This vulnerability is identified as CVE-2013-4154. There is not any exploit available. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability was found in libvirt up to 1.1.0 (Virtualization Software). It has been classified as critical. This affects the function qemuAgentCommand of the file qemu/qemu_agent.c. The manipulation of the argument mon with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability. The summary by CVE is:

The qemuAgentCommand function in libvirt before 1.1.1, when a guest agent is not configured, allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via vectors related to "agent based cpu (un)plug," as demonstrated by the "virsh vcpucount foobar --guest" command.

The weakness was released 07/16/2013 by Alex Jia with Red Hat as not defined mailinglist post (oss-sec). The advisory is shared at seclists.org. This vulnerability is uniquely identified as CVE-2013-4154 since 06/12/2013. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are known, but no exploit is available.

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 (95516†) and Secunia (SA54169†). Entry connected to this vulnerability is available at VDB-9682. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.2

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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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 🔍
08/21/2017 +1421 days 🔍

Sourcesinfo

Advisory: seclists.org
Researcher: Alex Jia
Organization: Red Hat
Status: Not defined
Confirmation: 🔍

CVE: CVE-2013-4154 (🔍)
GCVE (CVE): GCVE-0-2013-4154
GCVE (VulDB): GCVE-100-9681
Secunia: 54169 - libvirt Denial of Service and Privilege Escalation Vulnerabilities, Not Critical
OSVDB: 95516

See also: 🔍

Entryinfo

Created: 07/23/2013 11:23
Updated: 08/21/2017 08:44
Changes: 07/23/2013 11:23 (56), 08/21/2017 08:44 (7)
Complete: 🔍
Committer:
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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