Heap-based buffer overflow in FortiOS - CVE-2020-12819
Published: September 30, 2020
Vulnerability identifier: #VU47185
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2020-12819
CWE-ID: CWE-122
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Fortinet, Inc
Affected software:
FortiOS
FortiOS
Detailed vulnerability description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error in the processing of Link Control Protocol messages. A remote authenticated attacker can send a specially crafted LCP packet, trigger heap-based buffer overflow and cause a denial of service condition on the target system.
How to mitigate CVE-2020-12819
Install updates from vendor's website.