Linux Foundation Xen 4.4.1 P2M Lock code

CVSS Meta Temp Score
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CTI Interest Score
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2.9$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in Linux Foundation Xen 4.4.1. The affected element is an unknown function of the component P2M Lock Handler. Such manipulation leads to denial of service. This vulnerability is documented as CVE-2014-9065. There is not any exploit available. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability was found in Linux Foundation Xen 4.4.1 (Virtualization Software). It has been rated as problematic. Affected by this issue is an unknown functionality of the component P2M Lock Handler. The manipulation with an unknown input leads to a code vulnerability. Using CWE to declare the problem leads to CWE-17. Impacted is availability.

The weakness was released 12/08/2014 by Andrew Cooper with Citrix as XSA-114 as confirmed advisory (Website). The advisory is available at xenbits.xen.org. This vulnerability is handled as CVE-2014-9065 since 11/24/2014. Local access is required to approach this attack. The successful exploitation needs a simple authentication. The technical details are unknown and an exploit is not available. The advisory points out:

The current read/write lock implementation is read-biased, which allows a consistent stream of readers to starve writers indefinitely. There are certain rwlocks where guests are capable of applying arbitrary read pressure.

The vulnerability scanner Nessus provides a plugin with the ID 82734 (GLSA-201504-04 : Xen: Multiple vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Gentoo Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 167760 (SUSE Enterprise Linux Security update for Xen (SUSE-SU-2015:0613-1)).

Applying the patch xsa114-4.4.patch is able to eliminate this problem. The bugfix is ready for download at xenbits.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 (99325), Tenable (82734), SecurityFocus (BID 71544†), SecurityTracker (ID 1031353†) and Vulnerability Center (SBV-47547†). Entries connected to this vulnerability are available at VDB-68427 and VDB-68500. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.3
VulDB Meta Temp Score: 2.9

VulDB Base Score: 3.3
VulDB Temp Score: 2.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Code
CWE: CWE-17
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 82734
Nessus Name: GLSA-201504-04 : Xen: Multiple vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 867773
OpenVAS Name: Fedora Update for xen FEDORA-2015-9978
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Patch
Status: 🔍

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

Patch: xsa114-4.4.patch

Timelineinfo

11/24/2014 🔍
12/08/2014 +14 days 🔍
12/08/2014 +0 days 🔍
12/08/2014 +0 days 🔍
12/09/2014 +1 days 🔍
12/09/2014 +0 days 🔍
12/10/2014 +1 days 🔍
12/11/2014 +1 days 🔍
12/15/2014 +4 days 🔍
03/01/2022 +2633 days 🔍

Sourcesinfo

Vendor: linuxfoundation.org

Advisory: XSA-114
Researcher: Andrew Cooper
Organization: Citrix
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2014-9065 (🔍)
GCVE (CVE): GCVE-0-2014-9065
GCVE (VulDB): GCVE-100-68426
X-Force: 99325 - Xen spinlock.c denial of service, Medium Risk
SecurityFocus: 71544 - Xen CVE-2014-9065 Denial of Service Vulnerability
SecurityTracker: 1031353 - Xen P2M Lock Starvation Flaw Lets Local Guest Administrative Users Deny Service on the Host System
Vulnerability Center: 47547 - Xen 4.4.x and Earlier Local Denial-of Service via a Large Number of Read Requests - CVE-2014-9065, Medium

See also: 🔍

Entryinfo

Created: 12/15/2014 09:24
Updated: 03/01/2022 10:15
Changes: 12/15/2014 09:24 (81), 06/15/2017 11:16 (5), 03/01/2022 10:09 (3), 03/01/2022 10:15 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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