#VU82895 Use-after-free in Linux kernel - CVE-2023-0240

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Main Vulnerability Database Vulnerabilities #VU82895

#VU82895 Use-after-free in Linux kernel - CVE-2023-0240

Published: January 30, 2023 / Updated: February 6, 2023


Vulnerability identifier: #VU82895
Vulnerability risk: 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-2023-0240
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 authenticated user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error within the io_uring's implementation in io_prep_async_work function. A local authenticated user can trigger a use-after-free error and escalate privileges on the system.


Remediation

Install update from vendor's website.

External links