Citrix Xen 3.x Netback input validation

CVSS Meta Temp Score
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CTI Interest Score
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5.9$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in Citrix Xen 3.x. This vulnerability affects unknown code of the component Netback. Such manipulation leads to input validation. This vulnerability is traded as CVE-2013-0216. There is no exploit available. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability was found in Citrix Xen 3.x (Connectivity Software). It has been rated as problematic. Affected by this issue is some unknown functionality of the component Netback. 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. CVE summarizes:

The Xen netback functionality in the Linux kernel before 3.7.8 allows guest OS users to cause a denial of service (loop) by triggering ring pointer corruption.

The weakness was shared 02/05/2013 as not defined mailinglist post (Website). The advisory is shared for download at lists.xen.org. This vulnerability is handled as CVE-2013-0216 since 12/06/2012. The exploitation is known to be easy. The attack needs to be approached locally. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 65252 (Ubuntu 10.04 LTS : linux-lts-backport-oneiric vulnerabilities (USN-1760-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 370047 (Citrix XenServer Security Update (CTX136540)).

Applying the patch xsa39 is able to eliminate this problem. The bugfix is ready for download at lists.xen.org. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (81922), Tenable (65252), SecurityFocus (BID 57743†), OSVDB (89902†) and Secunia (SA52056†). The entries VDB-7599, VDB-7602, VDB-7603 and VDB-7605 are related to this item. Once again VulDB remains the best source for 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: 5.9

VulDB Base Score: 6.2
VulDB Temp Score: 5.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 65252
Nessus Name: Ubuntu 10.04 LTS : linux-lts-backport-oneiric vulnerabilities (USN-1760-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 881717
OpenVAS Name: CentOS Update for kernel CESA-2013:0747 centos5
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: xsa39
McAfee IPS: 🔍
McAfee IPS Version: 🔍

Timelineinfo

12/06/2012 🔍
02/05/2013 +60 days 🔍
02/05/2013 +0 days 🔍
02/05/2013 +0 days 🔍
02/05/2013 +0 days 🔍
02/06/2013 +1 days 🔍
02/11/2013 +5 days 🔍
02/17/2013 +6 days 🔍
03/13/2013 +24 days 🔍
05/06/2013 +54 days 🔍
05/04/2021 +2920 days 🔍

Sourcesinfo

Vendor: citrix.com

Advisory: lists.xen.org
Status: Not defined
Confirmation: 🔍

CVE: CVE-2013-0216 (🔍)
GCVE (CVE): GCVE-0-2013-0216
GCVE (VulDB): GCVE-100-7604

OVAL: 🔍

X-Force: 81922
SecurityFocus: 57743
Secunia: 52056 - Xen netback Two Denial of Service Vulnerabilities, Not Critical
OSVDB: 89902
Vulnerability Center: 39441 - Linux Kernel Xen netback Before 3.7.8 Local DoS Vulnerability (CVE-2013-0216), Medium

See also: 🔍

Entryinfo

Created: 02/11/2013 09:31
Updated: 05/04/2021 14:32
Changes: 02/11/2013 09:31 (79), 04/28/2017 20:28 (4), 05/04/2021 14:30 (3), 05/04/2021 14:32 (1)
Complete: 🔍
Committer: olku
Cache ID: 216::103

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