Linux Foundation Xen up to 4.3.0 vmx_set_uc_mode memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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4.0$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in Linux Foundation Xen. This impacts the function vmx_set_uc_mode. The manipulation results in memory corruption. This vulnerability is cataloged as CVE-2013-2212. Furthermore, there is an exploit available. Applying the suggested workaround is recommended.

Detailsinfo

A vulnerability was found in Linux Foundation Xen (Virtualization Software). It has been classified as problematic. Affected is the function vmx_set_uc_mode. 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 availability. CVE summarizes:

The vmx_set_uc_mode function in Xen 3.3 through 4.3, when disabling chaches, allows local HVM guests with access to memory mapped I/O regions to cause a denial of service (CPU consumption and possibly hypervisor or guest kernel panic) via a crafted GFN range.

The weakness was shared 07/24/2013 by Zhenzhong Duan as not defined mailinglist post (oss-sec). The advisory is shared for download at seclists.org. The vendor cooperated in the coordination of the public release. This vulnerability is traded as CVE-2013-2212 since 02/19/2013. The attack needs to approached within the local network. The exploitation doesn't require any form of authentication. Technical details and a private exploit are known.

It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 73015 (SuSE 11.3 Security Update : Xen (SAT Patch Number 8973)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 166934 (OpenSuSE Security Update for xen (openSUSE-SU-2014:0482-1)).

The best possible mitigation is suggested to be Workaround.

The vulnerability is also documented in the databases at X-Force (85944), Tenable (73015), SecurityFocus (BID 61424†), OSVDB (95629†) and Secunia (SA53797†). The entries VDB-11330 and VDB-11474 are related to this item. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.0

VulDB Base Score: 4.3
VulDB Temp Score: 4.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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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: No
Local: No
Remote: Partially

Availability: 🔍
Access: Private
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 73015
Nessus Name: SuSE 11.3 Security Update : Xen (SAT Patch Number 8973)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 867554
OpenVAS Name: Fedora Update for xen FEDORA-2014-2802
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Workaround
Status: 🔍

0-Day Time: 🔍

Workaround: Do not assign PCI devices to untrusted guest

Timelineinfo

02/19/2013 🔍
07/19/2013 +150 days 🔍
07/19/2013 +0 days 🔍
07/24/2013 +5 days 🔍
07/26/2013 +2 days 🔍
08/28/2013 +33 days 🔍
03/12/2014 +196 days 🔍
03/14/2014 +2 days 🔍
05/20/2021 +2624 days 🔍

Sourcesinfo

Vendor: linuxfoundation.org

Advisory: seclists.org
Researcher: Zhenzhong Duan
Status: Not defined
Coordinated: 🔍

CVE: CVE-2013-2212 (🔍)
GCVE (CVE): GCVE-0-2013-2212
GCVE (VulDB): GCVE-100-9744

OVAL: 🔍

X-Force: 85944
SecurityFocus: 61424 - Xen CVE-2013-2212 Local Denial of Service Vulnerability
Secunia: 53797 - Xen "vmx_set_uc_mode()" Disable Caches Denial of Service Vulnerability, Not Critical
OSVDB: 95629
Vulnerability Center: 43588 - XenProject Xen 3.3 through 4.3 Local DoS via a crafted GFN Range, Medium

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 07/26/2013 18:10
Updated: 05/20/2021 15:02
Changes: 07/26/2013 18:10 (82), 05/22/2017 17:24 (3), 05/20/2021 15:02 (3)
Complete: 🔍
Committer:
Cache ID: 216:A02:103

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