Use-after-free in FreeBSD - CVE-2020-7469
Published: December 1, 2020
Vulnerability identifier: #VU48744
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-7469
CWE-ID: CWE-416
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to gain access to sensitive information.
The vulnerability exists due to a use-after-free error when processing ICMPv6 error message. A remote attacker can send a specially crafted ICMPv6 message, trigger a use-after-free error and read contents of freed kernel memory.
Affected software
FreeBSD
PowerScale OneFS
PowerScale OneFS
How to mitigate CVE-2020-7469
Install updates from vendor's website.