XenSource Xen 4.2/4.3/4.4/4.5 qemu-xen-traditiona memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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7.7$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in XenSource Xen 4.2/4.3/4.4/4.5. Affected by this issue is some unknown functionality of the component qemu-xen-traditiona. Such manipulation leads to memory corruption. This vulnerability is referenced as CVE-2015-8554. It is possible to launch the attack remotely. No exploit is available. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability, which was classified as critical, has been found in XenSource Xen 4.2/4.3/4.4/4.5 (Virtualization Software). Affected by this issue is an unknown functionality of the component qemu-xen-traditiona. 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 confidentiality, integrity, and availability.

The weakness was published 12/17/2015 by Jan Beulich with SuSE as XSA-164 as confirmed security advisory (Website). The advisory is available at xenbits.xen.org. This vulnerability is handled as CVE-2015-8554 since 12/14/2015. The exploitation is known to be easy. Local access is required to approach this attack. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available.

The vulnerability scanner Nessus provides a plugin with the ID 90759 (SUSE SLES11 Security Update : xen (SUSE-SU-2016:1154-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 168775 (SUSE Enterprise Linux Security update for xen (SUSE-SU-2016:1154-1)).

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 X-Force (109030), Tenable (90759), SecurityFocus (BID 79579†) and Vulnerability Center (SBV-55332†). Similar entries are available at VDB-13216, VDB-13276, VDB-13279 and VDB-13280. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.3
VulDB Meta Temp Score: 7.7

VulDB Base Score: 9.0
VulDB Temp Score: 7.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 90759
Nessus Name: SUSE SLES11 Security Update : xen (SUSE-SU-2016:1154-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 850584
OpenVAS Name: SuSE Update for xen SUSE-SU-2016:1318-1 (xen)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
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Timelineinfo

12/14/2015 🔍
12/17/2015 +3 days 🔍
12/17/2015 +0 days 🔍
12/17/2015 +0 days 🔍
12/17/2015 +0 days 🔍
12/18/2015 +1 days 🔍
12/18/2015 +0 days 🔍
04/14/2016 +118 days 🔍
04/27/2016 +13 days 🔍
07/01/2022 +2256 days 🔍

Sourcesinfo

Vendor: citrix.com

Advisory: XSA-164
Researcher: Jan Beulich
Organization: SuSE
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-8554 (🔍)
GCVE (CVE): GCVE-0-2015-8554
GCVE (VulDB): GCVE-100-79850
X-Force: 109030 - Xen qemu-dm privilege escalation
SecurityFocus: 79579 - Xen 'pt-msi.c' Heap Memory Corruption Vulnerability
SecurityTracker: 1034481
Vulnerability Center: 55332 - Xen <4.3 Local Privilege Escalation due to Qemu-dm Bufferoverflow, Low

See also: 🔍

Entryinfo

Created: 12/18/2015 09:59
Updated: 07/01/2022 11:01
Changes: 12/18/2015 09:59 (51), 06/19/2018 20:59 (29), 07/01/2022 10:56 (4), 07/01/2022 11:01 (11)
Complete: 🔍
Cache ID: 216:755:103

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