Use-after-free in FreeBSD - CVE-2019-15879
Published: May 13, 2020
Vulnerability identifier: #VU27862
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/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-2019-15879
CWE-ID: CWE-416
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: FreeBSD Foundation
Affected software:
FreeBSD
FreeBSD
Detailed vulnerability description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a race condition in cryptodev module. A local user can run a specially crafted application to trigger a use-after-free error and overwrite arbitrary kernel memory.
How to mitigate CVE-2019-15879
Install updates from vendor's website.