Linux Foundation Xen 4.0.0/4.1.0/4.2.0 do_tmem_get input validation

CVSS Meta Temp Score
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CTI Interest Score
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6.2$0-$5k0.00

Summaryinfo

A vulnerability was found in Linux Foundation Xen 4.0.0/4.1.0/4.2.0. It has been classified as problematic. This vulnerability affects the function do_tmem_get. Performing a manipulation results in input validation. This vulnerability was named CVE-2012-6031. There is no available exploit.

Detailsinfo

A vulnerability was found in Linux Foundation Xen 4.0.0/4.1.0/4.2.0 (Virtualization Software). It has been classified as critical. This affects the function do_tmem_get. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as 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. This is going to have an impact on availability. The summary by CVE is:

The do_tmem_get function in the Transcendent Memory (TMEM) in Xen 4.0, 4.1, and 4.2 allow local guest OS users to cause a denial of service (CPU hang and host crash) via unspecified vectors related to a spinlock being held in the "bad_copy error path." NOTE: this issue was originally published as part of CVE-2012-3497, which was too general; CVE-2012-3497 has been SPLIT into this ID and others.

The weakness was presented 11/23/2012 (Website). The advisory is shared at xforce.iss.net. This vulnerability is uniquely identified as CVE-2012-6031 since 11/23/2012. An attack has to be approached locally. No form of authentication is needed for exploitation. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 70184 (GLSA-201309-24 : Xen: Multiple vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Gentoo Local Security Checks.

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 (78268), Tenable (70184), SecurityFocus (BID 55410†), OSVDB (85199†) and Secunia (SA50472†). See VDB-6108, VDB-6106, VDB-6109 and VDB-6110 for similar entries. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.2
VulDB Meta Temp Score: 6.2

VulDB Base Score: 6.2
VulDB Temp Score: 6.2
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: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 70184
Nessus Name: GLSA-201309-24 : Xen: Multiple vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/05/2012 🔍
09/05/2012 +0 days 🔍
09/05/2012 +0 days 🔍
11/23/2012 +79 days 🔍
11/23/2012 +0 days 🔍
11/23/2012 +0 days 🔍
12/19/2013 +391 days 🔍
03/24/2015 +460 days 🔍
12/20/2021 +2463 days 🔍

Sourcesinfo

Vendor: linuxfoundation.org

Advisory: xforce.iss.net
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2012-6031 (🔍)
GCVE (CVE): GCVE-0-2012-6031
GCVE (VulDB): GCVE-100-63033
X-Force: 78268
SecurityFocus: 55410
Secunia: 50472 - Xen Multiple Denial of Service and Privilege Escalation Vulnerabilities, Less Critical
OSVDB: 85199
SecurityTracker: 1027482 - Xen Transcendent Memory (TMEM) Multiple Flaws Lets Local Users on the Guest Operating System Gain Elevated Privileges on the Host
Vulnerability Center: 42650 - Xen 4.0, 4.1 and 4.2 Local DoS in the Transcendent Memory (CVE-2012-6031), Medium

See also: 🔍

Entryinfo

Created: 03/24/2015 12:22
Updated: 12/20/2021 11:32
Changes: 03/24/2015 12:22 (61), 05/18/2017 08:24 (10), 12/20/2021 11:32 (2)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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