Use after free in Linux kernel - CVE-2020-14381

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Main Vulnerability Database Vulnerabilities #VU92420

Use after free in Linux kernel - CVE-2020-14381

Published: December 3, 2020 / Updated: December 8, 2020


Vulnerability identifier: #VU92420
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-2020-14381
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 get_futex_key_refs(), drop_futex_key_refs() and futex_setup_timer() functions in kernel/futex.c, within the inode_init_always() function in fs/inode.c. A local user can execute arbitrary code.


Remediation

Install update from vendor's repository.

External links