XenSource Xen Para Virtualized Frame Buffer Mapping memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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3.8$0-$5k0.00

Summaryinfo

A vulnerability was found in XenSource Xen Para Virtualized Frame Buffer. It has been rated as problematic. This affects an unknown function of the component Mapping. The manipulation leads to memory corruption. This vulnerability is referenced as CVE-2008-1952. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in XenSource Xen Para Virtualized Frame Buffer (Virtualization Software) (version unknown). It has been rated as problematic. This issue affects an unknown function of the component Mapping. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to 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. Impacted is availability. The summary by CVE is:

The backend for XenSource Xen Para Virtualized Frame Buffer (PVFB) in Xen ioemu does not properly restrict the frame buffer size, which allows attackers to cause a denial of service (crash) by mapping an arbitrary amount of guest memory.

The weakness was published 06/23/2008 by Jan Lieskovsky (Website). It is possible to read the advisory at xenbits.xensource.com. The identification of this vulnerability is CVE-2008-1952 since 04/24/2008. The exploitation is known to be easy. Attacking locally is a requirement. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 43711 (CentOS 5 : xen (CESA-2008:0892)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CentOS Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 117230 (CentOS Security Update for xen (CESA-2008:0892)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 4 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (43362), Tenable (43711), SecurityFocus (BID 30646†), OSVDB (46542†) and Secunia (SA32088†). Similar entry is available at VDB-43586. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.0
VulDB Meta Temp Score: 3.8

VulDB Base Score: 4.0
VulDB Temp Score: 3.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
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: 43711
Nessus Name: CentOS 5 : xen (CESA-2008:0892)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 870027
OpenVAS Name: Rhino Software Serv-U SITE SET Command Denial Of Service vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Timelineinfo

04/24/2008 🔍
06/23/2008 +60 days 🔍
06/23/2008 +0 days 🔍
06/23/2008 +0 days 🔍
08/11/2008 +49 days 🔍
10/05/2008 +55 days 🔍
10/06/2008 +1 days 🔍
01/06/2010 +457 days 🔍
03/16/2015 +1895 days 🔍
08/18/2019 +1616 days 🔍

Sourcesinfo

Vendor: citrix.com

Advisory: xenbits.xensource.com
Researcher: Jan Lieskovsky
Status: Not defined
Confirmation: 🔍

CVE: CVE-2008-1952 (🔍)
GCVE (CVE): GCVE-0-2008-1952
GCVE (VulDB): GCVE-100-42875

OVAL: 🔍

X-Force: 43362
SecurityFocus: 30646 - Xen Para Virtualized Frame Buffer 'ioemu' Frontend Frame Buffer Denial of Service Vulnerability
Secunia: 32088
OSVDB: 46542 - Xen PVFB Shared Framebuffer Handling DoS
SecurityTracker: 1020957
Vulnerability Center: 19658 - XenSource Xen PVFB DoS Vulnerability via Arbitrary Amount of Guest Memory, Low

See also: 🔍

Entryinfo

Created: 03/16/2015 17:00
Updated: 08/18/2019 06:38
Changes: 03/16/2015 17:00 (74), 08/18/2019 06:38 (8)
Complete: 🔍
Cache ID: 216:E33:103

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