Vulnerability identifier: #VU27862
Vulnerability risk: Low
CVSSv3.1: 8.6 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-416
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
FreeBSD
Operating systems & Components /
Operating system
Vendor: FreeBSD Foundation
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.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
FreeBSD: 11.0 - 12.1
External links
http://www.freebsd.org/security/advisories/FreeBSD-SA-20:15.cryptodev.asc
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.