Linux Kernel 3.8-rc1 /drivers/vhost/net.c vhost_net_flush resource management

CVSS Meta Temp Score
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CTI Interest Score
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5.7$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in Linux Kernel 3.8-rc1. This affects the function vhost_net_flush of the file /drivers/vhost/net.c. The manipulation leads to resource management. This vulnerability is referenced as CVE-2013-4127. No exploit is available. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability was found in Linux Kernel 3.8-rc1 (Operating System) and classified as critical. This issue affects the function vhost_net_flush of the file /drivers/vhost/net.c. The manipulation with an unknown input leads to a resource management vulnerability. Using CWE to declare the problem leads to CWE-399. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Use-after-free vulnerability in the vhost_net_set_backend function in drivers/vhost/net.c in the Linux kernel through 3.10.3 allows local users to cause a denial of service (OOPS and system crash) via vectors involving powering on a virtual machine.

The weakness was published 07/09/2013 with Red Hat as confirmed git commit (GIT Repository). The advisory is shared at git.kernel.org. The public release has been coordinated with Linux. The identification of this vulnerability is CVE-2013-4127 since 06/12/2013. The exploitation is known to be difficult. An attack has to be approached locally. No form of authentication is needed for a successful exploitation. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 69418 (Ubuntu 13.04 : linux vulnerabilities (USN-1935-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 195415 (Ubuntu Security Notification for Linux-lts-raring Vulnerabilities (USN-1936-1)).

Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (69418), SecurityFocus (BID 61198†), OSVDB (95254†), Secunia (SA54575†) and Vulnerability Center (SBV-40564†). Similar entries are available at VDB-9546 and VDB-9980. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.7

VulDB Base Score: 5.9
VulDB Temp Score: 5.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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NVD Base Score: 🔍

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: 69418
Nessus Name: Ubuntu 13.04 : linux vulnerabilities (USN-1935-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 841534
OpenVAS Name: Ubuntu Update for linux USN-1935-1
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: 🔍
Exposure Time: 🔍

Patch: git.kernel.org

Timelineinfo

06/12/2013 🔍
07/09/2013 +27 days 🔍
07/09/2013 +0 days 🔍
07/15/2013 +6 days 🔍
07/15/2013 +0 days 🔍
07/17/2013 +2 days 🔍
07/18/2013 +1 days 🔍
07/29/2013 +11 days 🔍
08/21/2013 +23 days 🔍
05/18/2021 +2827 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Organization: Red Hat
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2013-4127 (🔍)
GCVE (CVE): GCVE-0-2013-4127
GCVE (VulDB): GCVE-100-9545

OVAL: 🔍

SecurityFocus: 61198 - Linux Kernel CVE-2013-4127 Use After Free Memory Corruption Vulnerability
Secunia: 54575 - Ubuntu update for kernel, Moderately Critical
OSVDB: 95254
Vulnerability Center: 40564 - Linux Kernel 3.8 Rc1 Through 3.8.9 Remote Code Execution or Denial of Service Related to the vhost_net_flush() and vhost_net_ubuf_put_and_wait() Functions, Critical

See also: 🔍

Entryinfo

Created: 07/18/2013 11:37
Updated: 05/18/2021 21:47
Changes: 07/18/2013 11:37 (79), 05/06/2017 19:06 (5), 05/18/2021 21:47 (3)
Complete: 🔍
Committer:
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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