#VU28418 Use-after-free in Linux kernel - CVE-2019-19377

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Main Vulnerability Database Vulnerabilities #VU28418

#VU28418 Use-after-free in Linux kernel - CVE-2019-19377

Published: November 29, 2019 / Updated: June 1, 2020


Vulnerability identifier: #VU28418
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2019-19377
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 non-authenticated attacker to execute arbitrary code.

In the Linux kernel 5.0.21, mounting a crafted btrfs filesystem image, performing some operations, and unmounting can lead to a use-after-free in btrfs_queue_work in fs/btrfs/async-thread.c.


Remediation

Install update from vendor's website.

External links