XenSource Xen 4.3.x/4.4.x/4.5.x/4.6.x Error XENMEM_exchange data processing

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

Summaryinfo

A vulnerability was found in XenSource Xen 4.3.x/4.4.x/4.5.x/4.6.x. It has been classified as problematic. Affected is the function XENMEM_exchange of the component Error Handler. Performing a manipulation results in data processing. This vulnerability is cataloged as CVE-2015-8339. The attack must originate from the local network. There is no exploit available. Applying a patch is the recommended action to fix this issue.

Detailsinfo

A vulnerability classified as problematic has been found in XenSource Xen 4.3.x/4.4.x/4.5.x/4.6.x (Virtualization Software). This affects the function XENMEM_exchange of the component Error Handler. The manipulation with an unknown input leads to a data processing vulnerability. CWE is classifying the issue as CWE-19. This is going to have an impact on availability.

The weakness was shared 12/08/2015 by Julien Grall and Jan Beulich with Citrix as XSA-159 as confirmed security advisory (Website). The advisory is shared at xenbits.xen.org. This vulnerability is uniquely identified as CVE-2015-8339 since 11/25/2015. It is possible to initiate the attack remotely. The requirement for exploitation is a authentication. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 87373 (Citrix XenServer Multiple memory_exchange() Hypercall Error Handling DoS (CTX203451)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Misc. and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 168296 (SUSE Enterprise Linux Security update for xen (SUSE-SU-2015:2306-1)).

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 Tenable (87373), SecurityFocus (BID 79038†), SecurityTracker (ID 1034391†) and Vulnerability Center (SBV-55276†). The entries VDB-78958, VDB-79345 and VDB-79750 are related to this item. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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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Exploitinginfo

Class: Data processing
CWE: CWE-19
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 87373
Nessus Name: Citrix XenServer Multiple memory_exchange() Hypercall Error Handling DoS (CTX203451)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 867773
OpenVAS Name: Fedora Update for xen FEDORA-2015-08
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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Timelineinfo

11/25/2015 🔍
12/08/2015 +13 days 🔍
12/08/2015 +0 days 🔍
12/08/2015 +0 days 🔍
12/08/2015 +0 days 🔍
12/11/2015 +3 days 🔍
12/11/2015 +0 days 🔍
12/15/2015 +4 days 🔍
12/15/2015 +0 days 🔍
12/17/2015 +2 days 🔍
06/30/2022 +2387 days 🔍

Sourcesinfo

Vendor: citrix.com

Advisory: XSA-159
Researcher: Julien Grall, Jan Beulich
Organization: Citrix
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-8339 (🔍)
GCVE (CVE): GCVE-0-2015-8339
GCVE (VulDB): GCVE-100-79749

OVAL: 🔍

SecurityFocus: 79038 - Xen XSA-159 Multiple Denial of Service Vulnerabilities
SecurityTracker: 1034391
Vulnerability Center: 55276 - Xen through 3.2 - 3.4 Local DoS Vulnerability due to Issue in XENMEM_exchange - CVE-2015-8339, Low

See also: 🔍

Entryinfo

Created: 12/11/2015 16:36
Updated: 06/30/2022 21:14
Changes: 12/11/2015 16:36 (59), 05/15/2018 09:00 (24), 06/30/2022 21:14 (2)
Complete: 🔍
Cache ID: 216:883:103

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