Vulnerability identifier: #VU28168

Vulnerability risk: Low

CVSSv3.1:

CVE-ID: CVE-2020-12826

CWE-ID: CWE-190

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Linux kernel
Operating systems & Components / Operating system

Vendor: Linux Foundation

Description

The vulnerability allows a local user to execute arbitrary code on the target system.

The vulnerability exists due to integer overflow in "exec_id" in "include/linux/sched.h". A local user can pass specially crafted data to the application, trigger integer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Linux kernel: 5.6 - 5.6.4

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CPE

• cpe:2.3:o:linux_foundation:linux_kernel:5.6.1:*:*:*:*:*:*:*

External links
http://bugzilla.redhat.com/show_bug.cgi?id=1822077
http://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6.5
http://github.com/torvalds/linux/commit/7395ea4e65c2a00d23185a3f63ad315756ba9cef
http://lists.openwall.net/linux-kernel/2020/03/24/1803
http://www.openwall.com/lists/kernel-hardening/2020/03/25/1

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Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?