#VU96514 Use-after-free in Linux kernel - CVE-2024-43891 

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Main Vulnerability Database Vulnerabilities #VU96514

#VU96514 Use-after-free in Linux kernel - CVE-2024-43891

Published: August 26, 2024 / Updated: May 12, 2025


Vulnerability identifier: #VU96514
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-2024-43891
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 escalate privileges on the system.

The vulnerability exists due to a use-after-free error within the trigger_start(), event_trigger_regex_open() and event_trigger_regex_write() functions in kernel/trace/trace_events_trigger.c, within the event_inject_write() function in kernel/trace/trace_events_inject.c, within the hist_show() and hist_debug_show() functions in kernel/trace/trace_events_hist.c, within the event_enable_read(), event_enable_write(), f_next(), f_show(), event_filter_read(), event_filter_write() and event_callback() functions in kernel/trace/trace_events.c. A local user can escalate privileges on the system.


Remediation

Install update from vendor's website.

External links