#VU27503 Use-after-free in Linux kernel - CVE-2019-19768

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Main Vulnerability Database Vulnerabilities #VU27503

#VU27503 Use-after-free in Linux kernel - CVE-2019-19768

Published: May 4, 2020


Vulnerability identifier: #VU27503
Vulnerability risk: 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-2019-19768
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 in the __blk_add_trace() function in kernel/trace/blktrace.c. A local user can run a specially crafted program, trigger a use-after-free error and execute arbitrary code on the system with elevated privileges.


Remediation

Install updates from vendor's website.

External links