Fabrice Bellard QEMU Header Field extent_size divide by zero

CVSS Meta Temp Score
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CTI Interest Score
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4.1$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Fabrice Bellard QEMU. This affects an unknown function of the component Header Field Handler. Performing a manipulation of the argument extent_size results in divide by zero. This vulnerability is known as CVE-2014-0142. No exploit is available. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability classified as problematic has been found in Fabrice Bellard QEMU (Virtualization Software) (affected version not known). This affects some unknown functionality of the component Header Field Handler. The manipulation of the argument extent_size with an unknown input leads to a divide by zero vulnerability. CWE is classifying the issue as CWE-369. The product divides a value by zero. This is going to have an impact on availability.

The weakness was published 03/26/2014 by Kevin Wolf with Red Hat as [Qemu-devel] [PATCH for-2.0 00/47] block: image format input validation as confirmed posting (Mailing List). It is possible to read the advisory at lists.gnu.org. This vulnerability is uniquely identified as CVE-2014-0142 since 12/03/2013. The exploitability is told to be easy. Attacking locally is a requirement. No form of authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 73663 (RHEL 6 : qemu-kvm (RHSA-2014:0420)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Red Hat Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 123337 (Fedora Security Update for qemu (FEDORA-2015-1886)).

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

The vulnerability is also documented in the databases at X-Force (92141), Tenable (73663), SecurityFocus (BID 66481†), Secunia (SA57878†) and Vulnerability Center (SBV-44765†). Similar entries are available at VDB-12734, VDB-12736, VDB-12737 and VDB-12738. 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: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.7
VulDB Meta Temp Score: 4.5

VulDB Base Score: 4.0
VulDB Temp Score: 3.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Divide by zero
CWE: CWE-369 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 73663
Nessus Name: RHEL 6 : qemu-kvm (RHSA-2014:0420)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 881925
OpenVAS Name: CentOS Update for qemu-guest-agent CESA-2014:0420 centos6
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

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

Patch: lists.gnu.org

Timelineinfo

12/03/2013 🔍
03/26/2014 +113 days 🔍
03/26/2014 +0 days 🔍
03/26/2014 +0 days 🔍
03/26/2014 +0 days 🔍
04/01/2014 +6 days 🔍
04/23/2014 +22 days 🔍
06/05/2014 +43 days 🔍
08/10/2017 +1162 days 🔍
06/16/2021 +1406 days 🔍

Sourcesinfo

Vendor: bellard.org

Advisory: [Qemu-devel] [PATCH for-2.0 00/47] block: image format input validation
Researcher: Kevin Wolf
Organization: Red Hat
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2014-0142 (🔍)
GCVE (CVE): GCVE-0-2014-0142
GCVE (VulDB): GCVE-100-12735

OVAL: 🔍

X-Force: 92141 - QEMU extent_size header field denial of service, Low Risk
SecurityFocus: 66481 - QEMU Division By Zero Error Local Denial of Service Vulnerability
Secunia: 57878
Vulnerability Center: 44765 - QEMU <2.0 Local DoS Vulnerability due to Zero Division, Low

See also: 🔍

Entryinfo

Created: 04/01/2014 14:34
Updated: 06/16/2021 12:03
Changes: 04/01/2014 14:34 (46), 05/29/2017 10:35 (36), 06/16/2021 11:48 (4), 06/16/2021 11:56 (11), 06/16/2021 12:03 (1)
Complete: 🔍
Cache ID: 216:12E:103

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