Linux Kernel KVM Subsystem setup_routing_entry memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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8.4$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in Linux Kernel. Impacted is the function setup_routing_entry of the component KVM Subsystem. Such manipulation leads to memory corruption. This vulnerability is uniquely identified as CVE-2012-2137. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Linux Kernel (Operating System) (the affected version unknown). Affected by this issue is the function setup_routing_entry of the component KVM Subsystem. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Buffer overflow in virt/kvm/irq_comm.c in the KVM subsystem in the Linux kernel before 3.2.24 allows local users to cause a denial of service (crash) and possibly execute arbitrary code via vectors related to Message Signaled Interrupts (MSI), irq routing entries, and an incorrect check by the setup_routing_entry function before invoking the kvm_set_irq function.

The weakness was disclosed 06/19/2012 as confirmed advisory (Red Hat Security Advisory). The advisory is available at rhn.redhat.com. This vulnerability is handled as CVE-2012-2137 since 04/04/2012. Local access is required to approach this attack. A simple authentication is necessary for exploitation. Technical details are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 74513 (Mandriva Linux Security Advisory : kernel (MDVSA-2014:124)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Mandriva Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 166783 (SUSE Enterprise Linux Security Update for Linux Kernel (SUSE-SU-2014:0287-1)).

Upgrading eliminates this vulnerability. The upgrade is hosted for download at rhn.redhat.com.

The vulnerability is also documented in the databases at Tenable (74513), SecurityFocus (BID 54063†), OSVDB (83104†), Secunia (SA49625†) and Vulnerability Center (SBV-35389†). The entries VDB-5386, VDB-5571, VDB-5583 and VDB-5656 are pretty similar. 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: 8.8
VulDB Meta Temp Score: 8.4

VulDB Base Score: 8.8
VulDB Temp Score: 8.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

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

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 74513
Nessus Name: Mandriva Linux Security Advisory : kernel (MDVSA-2014:124)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 881125
OpenVAS Name: CentOS Update for kernel CESA-2012:0743 centos6
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: rhn.redhat.com

Timelineinfo

04/04/2012 🔍
06/18/2012 +74 days 🔍
06/18/2012 +0 days 🔍
06/19/2012 +1 days 🔍
06/19/2012 +0 days 🔍
06/20/2012 +1 days 🔍
06/20/2012 +0 days 🔍
06/25/2012 +5 days 🔍
01/22/2013 +211 days 🔍
06/13/2014 +507 days 🔍
03/25/2021 +2477 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: rhn.redhat.com
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2012-2137 (🔍)
GCVE (CVE): GCVE-0-2012-2137
GCVE (VulDB): GCVE-100-5582

OVAL: 🔍

SecurityFocus: 54063
Secunia: 49625 - Red Hat update for kernel, Less Critical
OSVDB: 83104
Vulnerability Center: 35389 - Linux Kernel 2.6.0-2.6.39 and 3.0-3.4.2 Local Code Execution or DoS Vulnerability, High

See also: 🔍

Entryinfo

Created: 06/25/2012 18:16
Updated: 03/25/2021 18:13
Changes: 06/25/2012 18:16 (70), 04/13/2017 21:01 (9), 03/25/2021 18:11 (4), 03/25/2021 18:13 (1)
Complete: 🔍
Cache ID: 216:202:103

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