Linux Kernel 2.6.28.2 handle_dr access control

CVSS Meta Temp Score
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CTI Interest Score
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7.5$5k-$25k0.00

Summaryinfo

A vulnerability was found in Linux Kernel 2.6.28.2. It has been declared as problematic. This vulnerability affects the function handle_dr. The manipulation results in access control. This vulnerability was named CVE-2009-3722. There is no available exploit.

Detailsinfo

A vulnerability was found in Linux Kernel 2.6.28.2 (Operating System). It has been classified as critical. Affected is the function handle_dr. The manipulation with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-264. This is going to have an impact on availability. CVE summarizes:

The handle_dr function in arch/x86/kvm/vmx.c in the KVM subsystem in the Linux kernel before 2.6.31.1 does not properly verify the Current Privilege Level (CPL) before accessing a debug register, which allows guest OS users to cause a denial of service (trap) on the host OS via a crafted application.

The issue has been introduced in 12/25/2008. The weakness was presented 10/30/2009 as Bug 531660 as not defined bug report (Bugzilla). The advisory is available at bugzilla.redhat.com. This vulnerability is traded as CVE-2009-3722 since 10/16/2009. 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. This vulnerability is assigned to T1068 by the MITRE ATT&CK project.

The vulnerability was handled as a non-public zero-day exploit for at least 309 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 68005 (Oracle Linux 5 : kvm (ELSA-2010-0126)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Oracle Linux Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 155678 (Oracle Enterprise Linux Update for KVM (ELSA-2010-0126)).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at X-Force (54068), Tenable (68005), SecurityFocus (BID 37221†) and Vulnerability Center (SBV-24527†). See VDB-52056 for similar entry. 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: 7.5
VulDB Meta Temp Score: 7.5

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

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-264
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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Nessus ID: 68005
Nessus Name: Oracle Linux 5 : kvm (ELSA-2010-0126)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 831170
OpenVAS Name: Mandriva Update for kernel MDVSA-2010:188 (kernel)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/25/2008 🔍
09/24/2009 +273 days 🔍
09/24/2009 +0 days 🔍
10/16/2009 +22 days 🔍
10/30/2009 +14 days 🔍
10/30/2009 +0 days 🔍
01/07/2010 +69 days 🔍
07/12/2013 +1282 days 🔍
03/18/2015 +614 days 🔍
08/24/2021 +2351 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: Bug 531660
Status: Not defined
Confirmation: 🔍

CVE: CVE-2009-3722 (🔍)
GCVE (CVE): GCVE-0-2009-3722
GCVE (VulDB): GCVE-100-50658

OVAL: 🔍

X-Force: 54068
SecurityFocus: 37221 - Linux Kernel KVM 'handle_dr()' Local Denial of Service Vulnerability
Vulnerability Center: 24527 - Linux Kernel Prior to 2.6.31.1 KVM Handle_dr Function Local DoS Vulnerability, Medium

See also: 🔍

Entryinfo

Created: 03/18/2015 15:15
Updated: 08/24/2021 23:30
Changes: 03/18/2015 15:15 (67), 02/19/2017 16:56 (10), 08/24/2021 23:30 (3)
Complete: 🔍
Cache ID: 216::103

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