Linux Kernel up to 4.8.12 virt/kvm/kvm_main.c kvm_ioctl_create_device use after free

CVSS Meta Temp Score
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CTI Interest Score
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7.4$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in Linux Kernel up to 4.8.12. Impacted is the function kvm_ioctl_create_device of the file virt/kvm/kvm_main.c. The manipulation results in use after free. This vulnerability is reported as CVE-2016-10150. The attack can be launched remotely. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in Linux Kernel up to 4.8.12 (Operating System). Affected is the function kvm_ioctl_create_device of the file virt/kvm/kvm_main.c. The manipulation with an unknown input leads to a use after free vulnerability. CWE is classifying the issue as CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. This is going to have an impact on availability. CVE summarizes:

Use-after-free vulnerability in the kvm_ioctl_create_device function in virt/kvm/kvm_main.c in the Linux kernel before 4.8.13 allows host OS users to cause a denial of service (host OS crash) or possibly gain privileges via crafted ioctl calls on the /dev/kvm device.

The weakness was disclosed 02/06/2017 by Prasad J Pandit (Website). The advisory is shared for download at git.kernel.org. This vulnerability is traded as CVE-2016-10150 since 01/19/2017. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 97018 (Ubuntu 16.10 : linux vulnerabilities (USN-3190-1)), 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 196686 (Ubuntu Security Notification for Linux Vulnerabilities (USN-3190-1)).

Upgrading to version 4.8.13 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (97018) and SecurityFocus (BID 95672†). The entries VDB-94700 and VDB-95259 are pretty similar. 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: 7.6
VulDB Meta Temp Score: 7.4

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 97018
Nessus Name: Ubuntu 16.10 : linux vulnerabilities (USN-3190-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 841810
OpenVAS Name: Ubuntu Update for linux-raspi2 USN-3190-2
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 4.8.13
Patch: git.kernel.org

Timelineinfo

01/19/2017 🔍
01/20/2017 +1 days 🔍
02/03/2017 +14 days 🔍
02/06/2017 +3 days 🔍
02/06/2017 +0 days 🔍
02/06/2017 +0 days 🔍
02/06/2017 +0 days 🔍
11/11/2022 +2104 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: USN-3190-1
Researcher: Prasad J Pandit
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-10150 (🔍)
GCVE (CVE): GCVE-0-2016-10150
GCVE (VulDB): GCVE-100-96552
SecurityFocus: 95672 - Linux Kernel CVE-2016-10150 Denial of Service Vulnerability
OSVDB: - CVE-2016-10150 - Linux - Use-After-Free Issue

See also: 🔍

Entryinfo

Created: 02/06/2017 19:25
Updated: 11/11/2022 15:52
Changes: 02/06/2017 19:25 (75), 08/11/2020 09:18 (7), 11/11/2022 15:47 (5), 11/11/2022 15:52 (1)
Complete: 🔍
Cache ID: 216::103

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