XenSource Xen 4.3.x/4.4.x/4.5.x/4.6.x Error XENMEM_exchange data processing
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
5.9 | $0-$5k | 0.00 |
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 vulnerability database at Tenable (87373). The entries 78958, 79345 and 79750 are related to this item.
Product
Type
Vendor
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 6.2VulDB Meta Temp Score: 5.9
VulDB Base Score: 6.2
VulDB Temp Score: 5.9
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
AV | AC | Au | C | I | A |
---|---|---|---|---|---|
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
---|---|---|---|---|---|
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Data processingCWE: CWE-19
CAPEC: 🔍
ATT&CK: 🔍
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
---|---|---|---|---|
Today | unlock | unlock | unlock | unlock |
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 Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: PatchStatus: 🔍
Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Timeline
11/25/2015 🔍12/08/2015 🔍
12/08/2015 🔍
12/08/2015 🔍
12/08/2015 🔍
12/11/2015 🔍
12/11/2015 🔍
12/15/2015 🔍
12/15/2015 🔍
12/17/2015 🔍
06/30/2022 🔍
Sources
Vendor: citrix.comAdvisory: XSA-159
Researcher: Julien Grall, Jan Beulich
Organization: Citrix
Status: Confirmed
Confirmation: 🔍
CVE: CVE-2015-8339 (🔍)
OVAL: 🔍
SecurityTracker: 1034391
Vulnerability Center: 55276 - Xen through 3.2 - 3.4 Local DoS Vulnerability due to Issue in XENMEM_exchange - CVE-2015-8339, Low
SecurityFocus: 79038 - Xen XSA-159 Multiple Denial of Service Vulnerabilities
See also: 🔍
Entry
Created: 12/11/2015 16:36Updated: 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: 🔍
No comments yet. Languages: en.
Please log in to comment.