Linux Foundation Xen up to 2.6.23 xen_failsafe_callback input validation

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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Linux Foundation Xen up to 2.6.23. This affects the function xen_failsafe_callback. The manipulation leads to input validation. This vulnerability is listed as CVE-2013-0190. There is no available exploit. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability was found in Linux Foundation Xen up to 2.6.23 (Virtualization Software). It has been rated as problematic. This issue affects the function xen_failsafe_callback. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to 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. Impacted is availability. The summary by CVE is:

The xen_failsafe_callback function in Xen for the Linux kernel 2.6.23 and other versions, when running a 32-bit PVOPS guest, allows local users to cause a denial of service (guest crash) by triggering an iret fault, leading to use of an incorrect stack pointer and stack corruption.

The weakness was presented 01/16/2013 by Andrew Cooper as XSA-40 as not defined changelog entry (Website). The advisory is shared at openwall.com. The identification of this vulnerability is CVE-2013-0190 since 12/06/2012. The exploitation is known to be easy. An attack has to be approached locally. Required for exploitation is a simple authentication. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 69713 (Amazon Linux AMI : kernel / nvidia (ALAS-2013-154)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Amazon Linux Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 121101 (CentOS Security Update for Kernel (CESA-2013:0496)).

Applying a patch is able to eliminate this problem. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (81341), Tenable (69713), SecurityFocus (BID 57433†), OSVDB (89336†) and Secunia (SA51834†). See VDB-7776 and VDB-63658 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: 5.5
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
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: 69713
Nessus Name: Amazon Linux AMI : kernel / nvidia (ALAS-2013-154)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 881682
OpenVAS Name: CentOS Update for kernel CESA-2013:0496 centos6
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
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McAfee IPS: 🔍
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Timelineinfo

12/06/2012 🔍
01/16/2013 +40 days 🔍
01/16/2013 +0 days 🔍
01/16/2013 +0 days 🔍
01/16/2013 +0 days 🔍
01/16/2013 +0 days 🔍
01/18/2013 +2 days 🔍
02/07/2013 +20 days 🔍
02/12/2013 +5 days 🔍
09/04/2013 +204 days 🔍
04/22/2021 +2787 days 🔍

Sourcesinfo

Vendor: linuxfoundation.org

Advisory: XSA-40
Researcher: Andrew Cooper
Status: Not defined
Confirmation: 🔍

CVE: CVE-2013-0190 (🔍)
GCVE (CVE): GCVE-0-2013-0190
GCVE (VulDB): GCVE-100-7433

OVAL: 🔍

X-Force: 81341
SecurityFocus: 57433
Secunia: 51834 - Xen "xen_failsafe_callback()" IRET Handling Denial of Service Weakness, Not Critical
OSVDB: 89336
Vulnerability Center: 38328 - Xen for Linux Kernel 2.6.23 \x27xen_failsafe_callback\x27 Function Improper Failed IRET Handling Allows Local DoS, Medium

See also: 🔍

Entryinfo

Created: 01/18/2013 14:24
Updated: 04/22/2021 12:19
Changes: 01/18/2013 14:24 (79), 04/24/2017 13:23 (4), 04/22/2021 12:15 (4), 04/22/2021 12:19 (1)
Complete: 🔍
Committer:
Cache ID: 216:FCD:103

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

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