Fabrice Bellard QEMU up to 2.0.0 Interrupt vmxnet3.c input validation

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5.2$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Fabrice Bellard QEMU up to 2.0.0. The affected element is an unknown function of the file vmxnet3.c of the component Interrupt Handler. The manipulation leads to input validation. This vulnerability is traded as CVE-2013-4544. There is no exploit available. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

A vulnerability was found in Fabrice Bellard QEMU up to 2.0.0 (Virtualization Software) and classified as problematic. This issue affects some unknown processing of the file vmxnet3.c of the component Interrupt Handler. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

hw/net/vmxnet3.c in QEMU 2.0.0-rc0, 1.7.1, and earlier allows local guest users to cause a denial of service or possibly execute arbitrary code via vectors related to (1) RX or (2) TX queue numbers or (3) interrupt indices. NOTE: some of these details are obtained from third party information.

The weakness was shared 04/12/2014 by Michael S. Tsirkin with Red Hat as vmxnet3: validate interrupt indices coming from guest as confirmed git commit (GIT Repository). It is possible to read the advisory at git.qemu.org. The identification of this vulnerability is CVE-2013-4544 since 06/12/2013. The exploitation is known to be easy. Attacking locally is a requirement. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 73818 (Fedora 20 : qemu-1.6.2-4.fc20 (2014-5825)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 195460 (Ubuntu Security Notification for QEMU Vulnerabilities (USN-2182-1)).

Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.qemu.org.

The vulnerability is also documented in the databases at X-Force (92662), Tenable (73818), SecurityFocus (BID 66955†), OSVDB (106013†) and Secunia (SA57917†). lists.gnu.org is providing further details. The entries VDB-13008 and VDB-13009 are related to this item. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
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CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.2

VulDB Base Score: 5.9
VulDB Temp Score: 5.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
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Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 73818
Nessus Name: Fedora 20 : qemu-1.6.2-4.fc20 (2014-5825)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 867762
OpenVAS Name: Fedora Update for qemu FEDORA-2014-5825
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: git.qemu.org

Timelineinfo

06/12/2013 🔍
04/12/2014 +304 days 🔍
04/12/2014 +0 days 🔍
04/14/2014 +2 days 🔍
04/17/2014 +3 days 🔍
04/22/2014 +5 days 🔍
05/02/2014 +10 days 🔍
05/08/2014 +6 days 🔍
05/11/2015 +368 days 🔍
06/17/2021 +2229 days 🔍

Sourcesinfo

Vendor: bellard.org

Advisory: vmxnet3: validate interrupt indices coming from guest
Researcher: Michael S. Tsirkin
Organization: Red Hat
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2013-4544 (🔍)
GCVE (CVE): GCVE-0-2013-4544
GCVE (VulDB): GCVE-100-13019

OVAL: 🔍

X-Force: 92662 - QEMU vmxnet3.c privilege escalation, Medium Risk
SecurityFocus: 66955 - Qemu 'vmxnet3.c' CVE-2013-4544 Denial of Service Vulnerability
Secunia: 57917 - Qemu vmxnet3 Interrupt and Queues Configuration Validation Vulnerabilities, Not Critical
OSVDB: 106013
Vulnerability Center: 50005 - QEMU Remote DoS or Code Execution in hw/net/vmxnet3.c, Medium

Misc.: 🔍
See also: 🔍

Entryinfo

Created: 04/22/2014 11:35
Updated: 06/17/2021 14:06
Changes: 04/22/2014 11:35 (86), 06/28/2017 06:26 (4), 06/17/2021 14:06 (3)
Complete: 🔍
Cache ID: 216:2EB:103

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