Use after free in Linux kernel - CVE-2020-36313

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Main Vulnerability Database Vulnerabilities #VU92414

Use after free in Linux kernel - CVE-2020-36313

Published: April 7, 2021 / Updated: June 7, 2021


Vulnerability identifier: #VU92414
CSH Severity: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2020-36313
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability: No public exploit available
Vulnerable software:
Linux kernel
Software vendor:
Linux Foundation

Description

The vulnerability allows a local user to execute arbitrary code.

The vulnerability exists due to use after free error within the kvm_memslot_delete() function in virt/kvm/kvm_main.c, within the kvm_s390_get_cmma() function in arch/s390/kvm/kvm-s390.c. A local user can execute arbitrary code.


Remediation

Install update from vendor's repository.

External links