#VU27861 Use-after-free in FreeBSD - CVE-2019-15878
Published: May 12, 2020
Vulnerability identifier: #VU27861
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2019-15878
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
FreeBSD
FreeBSD
Software vendor:
FreeBSD Foundation
FreeBSD Foundation
Description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to the SCTP layer does improper checking when an application tries to update a shared key. A local user can trigger a use-after-free error by specific sequences of updating shared keys and closing the SCTP association and cause a kernel panic.
Remediation
Install updates from vendor's website.