Linux Foundation Xen 4.2.0/4.2.1/4.2.2/4.2.3/4.3.0 tools/libxl/libxl.c libxl_list_cpupool resource management

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3.2$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Linux Foundation Xen 4.2.0/4.2.1/4.2.2/4.2.3/4.3.0. The affected element is the function libxl_list_cpupool of the file tools/libxl/libxl.c. Performing a manipulation results in resource management. This vulnerability is known as CVE-2013-4371. No exploit is available. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability classified as problematic has been found in Linux Foundation Xen 4.2.0/4.2.1/4.2.2/4.2.3/4.3.0 (Virtualization Software). This affects the function libxl_list_cpupool of the file tools/libxl/libxl.c. The manipulation with an unknown input leads to a resource management vulnerability. CWE is classifying the issue as CWE-399. This is going to have an impact on availability. The summary by CVE is:

Use-after-free vulnerability in the libxl_list_cpupool function in the libxl toolstack library in Xen 4.2.x and 4.3.x, when running "under memory pressure," returns the original pointer when the realloc function fails, which allows local users to cause a denial of service (heap corruption and crash) and possibly execute arbitrary code via unspecified vectors.

The weakness was published 10/10/2013 by Matthew Daley and Coverty Scan with Coverity Scan as use-after-free in libxl_list_cpupool under memory pressure as not defined mailinglist post (oss-sec). The advisory is shared at seclists.org. This vulnerability is uniquely identified as CVE-2013-4371 since 06/12/2013. An attack has to be approached locally. A authentication is needed for exploitation. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 70549 (Fedora 19 : xen-4.2.3-4.fc19 (2013-19048)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 166560 (SUSE Enterprise Linux Security update for Xen (SUSE-SU-2013:1774-1)).

Applying the patch xsa70 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 (87797), Tenable (70549), SecurityFocus (BID 62932†), OSVDB (98287†) and Vulnerability Center (SBV-42122†). Similar entries are available at VDB-10666, VDB-10667, VDB-10668 and VDB-10674. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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: 3.2

VulDB Base Score: 3.3
VulDB Temp Score: 3.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
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Exploitinginfo

Class: Resource management
CWE: CWE-399 / CWE-404
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: 70549
Nessus Name: Fedora 19 : xen-4.2.3-4.fc19 (2013-19048)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 867005
OpenVAS Name: Fedora Update for xen FEDORA-2013-19048
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: xsa70

Timelineinfo

06/12/2013 🔍
10/10/2013 +120 days 🔍
10/10/2013 +0 days 🔍
10/10/2013 +0 days 🔍
10/15/2013 +5 days 🔍
10/17/2013 +2 days 🔍
10/17/2013 +0 days 🔍
10/29/2013 +12 days 🔍
05/26/2021 +2766 days 🔍

Sourcesinfo

Vendor: linuxfoundation.org

Advisory: use-after-free in libxl_list_cpupool under memory pressure
Researcher: Matthew Daley, Coverty Scan
Organization: Coverity Scan
Status: Not defined

CVE: CVE-2013-4371 (🔍)
GCVE (CVE): GCVE-0-2013-4371
GCVE (VulDB): GCVE-100-10665

OVAL: 🔍

X-Force: 87797
SecurityFocus: 62932 - Xen CVE-2013-4371 Use After Free Remote Denial of Service Vulnerability
OSVDB: 98287
Vulnerability Center: 42122 - Xen 4.2 Through 4.3 Local Arbitrary Code Execution and DoS Vulnerability Due to a Flaw in the libxl_list_cpupool Function, Medium

See also: 🔍

Entryinfo

Created: 10/15/2013 09:57
Updated: 05/26/2021 15:53
Changes: 10/15/2013 09:57 (70), 08/21/2017 08:45 (10), 05/26/2021 15:53 (3)
Complete: 🔍
Committer: olku
Cache ID: 216:EB2:103

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