Linux Kernel up to 3.13 Long Packet drivers/vhost/net.c handle_rx out-of-bounds write

CVSS Meta Temp Score
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CTI Interest Score
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5.2$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Linux Kernel 3.2/3.4/3.10/3.12/3.13. The impacted element is the function handle_rx of the file drivers/vhost/net.c of the component Long Packet Handler. The manipulation leads to input validation. This vulnerability is listed as CVE-2014-0077. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel 3.2/3.4/3.10/3.12/3.13 (Operating System). It has been rated as problematic. This issue affects the function handle_rx of the file drivers/vhost/net.c of the component Long Packet Handler. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

drivers/vhost/net.c in the Linux kernel before 3.13.10, when mergeable buffers are disabled, does not properly validate packet lengths, which allows guest OS users to cause a denial of service (memory corruption and host OS crash) or possibly gain privileges on the host OS via crafted packets, related to the handle_rx and get_rx_bufs functions.

The weakness was presented 04/04/2014 by Michael S. Tsirkin with Red Hat as Bug 1064440 as confirmed bug report (Bugzilla). The advisory is shared at bugzilla.redhat.com. The identification of this vulnerability is CVE-2014-0077 since 12/03/2013. The exploitation is known to be easy. 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 74214 (Ubuntu 14.04 LTS : linux vulnerabilities (USN-2226-1)), 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 350400 (Amazon Linux Security Advisory for kernel: ALAS-2014-328).

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (92332), Tenable (74214), SecurityFocus (BID 66678†), Secunia (SA57740†) and Vulnerability Center (SBV-43927†). See VDB-12714 for similar entry. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Not Affected

  • Red Hat Enterprise Linux 5

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CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.2

VulDB Base Score: 5.9
VulDB Temp Score: 5.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 74214
Nessus Name: Ubuntu 14.04 LTS : linux vulnerabilities (USN-2226-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 881932
OpenVAS Name: CentOS Update for kernel CESA-2014:0475 centos6
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/03/2013 🔍
03/27/2014 +114 days 🔍
03/27/2014 +0 days 🔍
04/04/2014 +8 days 🔍
04/08/2014 +4 days 🔍
04/08/2014 +0 days 🔍
04/09/2014 +1 days 🔍
04/14/2014 +5 days 🔍
05/28/2014 +44 days 🔍
05/10/2026 +4365 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: Bug 1064440
Researcher: Michael S. Tsirkin
Organization: Red Hat
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2014-0077 (🔍)
GCVE (CVE): GCVE-0-2014-0077
GCVE (VulDB): GCVE-100-12833

OVAL: 🔍

X-Force: 92332 - Linux Kernel handle_rx() privilege escalation, High Risk
SecurityFocus: 66678 - Linux Kernel 'handle_rx()' Function Denial of Service Vulnerability
Secunia: 57740 - Linux Kernel "handle_rx()" Privilege Escalation Vulnerability, Less Critical
Vulnerability Center: 43927 - Linux Kernel Remote DoS and Memory Corruption in vhost-net handle_rx(), Medium

See also: 🔍

Entryinfo

Created: 04/09/2014 11:02
Updated: 05/10/2026 15:13
Changes: 04/09/2014 11:02 (85), 05/24/2017 11:32 (4), 06/16/2021 16:00 (3), 05/10/2026 15:13 (17)
Complete: 🔍
Cache ID: 216::103

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

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