Use-after-free in Linux kernel - CVE-2022-28796

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Main Vulnerability Database Vulnerabilities #VU83380

Use-after-free in Linux kernel - CVE-2022-28796

Published: November 21, 2023


Vulnerability identifier: #VU83380
CSH Severity: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2022-28796
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 transaction_t race condition within the jbd2_journal_wait_updates() function in fs/jbd2/transaction.c. 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