Use-after-free in FreeBSD - CVE-2020-7463
Published: September 3, 2020
Vulnerability identifier: #VU46227
CSH Severity: Low
CVSS v4: 6.8 [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]
CVE-ID: CVE-2020-7463
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to a use-after-free error when processing SCTP messages. A local user can send large user messages from multiple threads on the same socket., trigger a use-after-free error and crash the system.
Affected software
FreeBSD
macOS
iPadOS
Apple iOS
iCloud for Windows
iTunes
macOS
iPadOS
Apple iOS
iCloud for Windows
iTunes
How to mitigate CVE-2020-7463
Install updates from vendor's website.
macOS - update to 11.3 20E232
iPadOS - update to 14.5 18E199
Apple iOS - update to 14.5 18E199
iCloud for Windows - update to 12.3
iTunes - update to 12.11.3
iPadOS - update to 14.5 18E199
Apple iOS - update to 14.5 18E199
iCloud for Windows - update to 12.3
iTunes - update to 12.11.3