Linux Kernel up to 4.5.2 IOCTL Call videobuf2-v4l2.c Kernel Memory memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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8.6$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Linux Kernel up to 4.5.2. This vulnerability affects unknown code of the file drivers/media/v4l2-core/videobuf2-v4l2.c of the component IOCTL Call Handler. This manipulation causes memory corruption (Kernel Memory). This vulnerability is tracked as CVE-2016-4568. The attack is possible to be carried out remotely. No exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in Linux Kernel up to 4.5.2 (Operating System). Affected by this vulnerability is some unknown functionality of the file drivers/media/v4l2-core/videobuf2-v4l2.c of the component IOCTL Call Handler. The manipulation with an unknown input leads to a memory corruption vulnerability (Kernel Memory). The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

drivers/media/v4l2-core/videobuf2-v4l2.c in the Linux kernel before 4.5.3 allows local users to cause a denial of service (kernel memory write operation) or possibly have unspecified other impact via a crafted number of planes in a VIDIOC_DQBUF ioctl call.

The weakness was disclosed 05/23/2016 (Website). It is possible to read the advisory at github.com. This vulnerability is known as CVE-2016-4568 since 05/07/2016. The exploitation appears to be easy. Attacking locally is a requirement. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 95995 (Ubuntu 16.04 LTS : linux vulnerabilities (USN-3161-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 196658 (Ubuntu Security Notification for Linux Vulnerabilities (USN-3161-1)).

Upgrading to version 4.5.3 eliminates this vulnerability. A possible mitigation has been published 8 months after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (95995). The entries VDB-93501, VDB-93842, VDB-93844 and VDB-94692 are pretty similar. 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: 8.8
VulDB Meta Temp Score: 8.6

VulDB Base Score: 9.8
VulDB Temp Score: 9.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Name: Kernel Memory
Class: Memory corruption / Kernel Memory
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 95995
Nessus Name: Ubuntu 16.04 LTS : linux vulnerabilities (USN-3161-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 860758
OpenVAS Name: Ubuntu Update for linux-lts-xenial USN-3161-2
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: Kernel 4.5.3
Patch: git.kernel.org

Timelineinfo

05/07/2016 🔍
05/23/2016 +16 days 🔍
05/23/2016 +0 days 🔍
05/24/2016 +1 days 🔍
12/20/2016 +210 days 🔍
12/21/2016 +1 days 🔍
08/22/2022 +2070 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: USN-3161-1
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-4568 (🔍)
GCVE (CVE): GCVE-0-2016-4568
GCVE (VulDB): GCVE-100-87607
See also: 🔍

Entryinfo

Created: 05/24/2016 11:56
Updated: 08/22/2022 08:58
Changes: 05/24/2016 11:56 (69), 12/12/2018 10:12 (11), 08/22/2022 08:57 (5), 08/22/2022 08:58 (1)
Complete: 🔍
Cache ID: 216:5A1:103

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