Fabrice Bellard QEMU 2.1.0/2.1.1/2.1.2 cirrus_vga.c memory corruption

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4.6$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in Fabrice Bellard QEMU 2.1.0/2.1.1/2.1.2. This vulnerability affects unknown code of the file cirrus_vga.c. The manipulation results in memory corruption. This vulnerability is identified as CVE-2014-8106. There is not any exploit available. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability classified as critical has been found in Fabrice Bellard QEMU 2.1.0/2.1.1/2.1.2 (Virtualization Software). Affected is an unknown code block of the file cirrus_vga.c. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on integrity.

The weakness was released 12/04/2014 by Paolo Bonzini with Red Hat as qemu: cirrus: insufficient blit region checks as confirmed mailinglist post (oss-sec). The advisory is available at seclists.org. This vulnerability is traded as CVE-2014-8106 since 10/10/2014. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 82989 (Scientific Linux Security Update : qemu-kvm on SL6.x i386/x86_64), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Scientific Linux Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 370030 (Citrix XenServer Security Update (CTX200892)).

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

The vulnerability is also documented in the databases at X-Force (99126), Tenable (82989), SecurityFocus (BID 71477†), Secunia (SA60364†) and Vulnerability Center (SBV-50592†). Further details are available at bugzilla.redhat.com. Entries connected to this vulnerability are available at VDB-67460 and VDB-68359. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.6

VulDB Base Score: 5.3
VulDB Temp Score: 4.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 82989
Nessus Name: Scientific Linux Security Update : qemu-kvm on SL6.x i386/x86_64
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 703087
OpenVAS Name: Debian Security Advisory DSA 3087-1 (qemu - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: bf25983345ca44aec3dd92c57142be45452bd38a

Timelineinfo

10/10/2014 🔍
12/04/2014 +55 days 🔍
12/04/2014 +0 days 🔍
12/05/2014 +1 days 🔍
12/05/2014 +0 days 🔍
12/08/2014 +3 days 🔍
04/14/2015 +127 days 🔍
04/22/2015 +8 days 🔍
06/17/2015 +56 days 🔍
02/27/2022 +2447 days 🔍

Sourcesinfo

Vendor: bellard.org

Advisory: qemu: cirrus: insufficient blit region checks
Researcher: Paolo Bonzini
Organization: Red Hat
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2014-8106 (🔍)
GCVE (CVE): GCVE-0-2014-8106
GCVE (VulDB): GCVE-100-68346

OVAL: 🔍

X-Force: 99126 - QEMU cirrus_vga.c security bypass, Medium Risk
SecurityFocus: 71477 - QEMU 'cirrus_vga.c' Security Bypass Vulnerability
Secunia: 60364 - QEMU Cirrus VGA Driver Blit Region Handling Vulnerabilities, Less Critical
Vulnerability Center: 50592 - QEMU Before 2.2.0 \x27hw/display/cirrus_vga.c\x27 Local Code Execution Vulnerability, Medium

Misc.: 🔍
See also: 🔍

Entryinfo

Created: 12/05/2014 09:49
Updated: 02/27/2022 15:25
Changes: 12/05/2014 09:49 (83), 06/30/2017 19:43 (3), 02/27/2022 15:20 (4), 02/27/2022 15:25 (1)
Complete: 🔍
Cache ID: 216::103

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