Linux Xen Elf Parser User Input Sanitizer libelf numeric error

CVSS Meta Temp Score
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CTI Interest Score
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8.9$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in Linux Xen Elf Parser. This affects an unknown function in the library libelf of the component User Input Sanitizer. Such manipulation leads to numeric error. This vulnerability is listed as CVE-2013-2194. There is no available exploit. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability was found in Linux Xen Elf Parser (Virtualization Software) (affected version unknown) and classified as critical. Affected by this issue is an unknown functionality in the library libelf of the component User Input Sanitizer. The manipulation with an unknown input leads to a numeric error vulnerability. Using CWE to declare the problem leads to CWE-189. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Multiple integer overflows in the Elf parser (libelf) in Xen 4.2.x and earlier allow local guest administrators with certain permissions to have an unspecified impact via a crafted kernel.

The weakness was presented 06/07/2013 as not defined mailinglist post (oss-sec). The advisory is shared for download at seclists.org. This vulnerability is handled as CVE-2013-2194 since 02/19/2013. The exploitation is known to be difficult. The attack needs to be approached locally. No form of authentication is required for exploitation. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 67292 (Fedora 18 : xen-4.2.2-7.fc18 (2013-10941)), 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 370043 (Citrix XenServer Security Update (CTX138058)).

Applying a patch is able to eliminate this problem. The bugfix is ready for download at xenbits.xen.org.

The vulnerability is also documented in the databases at Tenable (67292), SecurityFocus (BID 60701†), OSVDB (94442†), Secunia (SA53686†) and Vulnerability Center (SBV-40223†). See VDB-9064 and VDB-9249 for similar entries. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.3
VulDB Meta Temp Score: 8.9

VulDB Base Score: 9.3
VulDB Temp Score: 8.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Numeric error
CWE: CWE-189
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: 67292
Nessus Name: Fedora 18 : xen-4.2.2-7.fc18 (2013-10941)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 866023
OpenVAS Name: Fedora Update for xen FEDORA-2013-10929
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: xenbits.xen.org

Timelineinfo

02/19/2013 🔍
06/07/2013 +108 days 🔍
06/07/2013 +0 days 🔍
06/11/2013 +4 days 🔍
06/25/2013 +14 days 🔍
06/30/2013 +5 days 🔍
07/12/2013 +12 days 🔍
08/23/2013 +42 days 🔍
05/17/2021 +2824 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: seclists.org
Status: Not defined
Confirmation: 🔍

CVE: CVE-2013-2194 (🔍)
GCVE (CVE): GCVE-0-2013-2194
GCVE (VulDB): GCVE-100-9248

OVAL: 🔍

SecurityFocus: 60701
Secunia: 53686 - Xen libelf Multiple Privilege Escalation Vulnerabilities, Less Critical
OSVDB: 94442
Vulnerability Center: 40223 - XenSource Xen and Citrix Xen Server Remote Privilege Escalation due to a Flaw in the ELF Parser (CVE-2013-2194), High

See also: 🔍

Entryinfo

Created: 06/25/2013 11:57
Updated: 05/17/2021 10:31
Changes: 06/25/2013 11:57 (45), 05/04/2017 08:55 (34), 05/17/2021 10:31 (3)
Complete: 🔍
Committer:
Cache ID: 216::103

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