Global infos:

A heap-based buffer overflow vulnerability in the processing of Link Control Protocol messages in FortiGate versions 5.6.12, 6.0.10, 6.2.4 and 6.4.1 and earlier may allow a remote attacker with valid SSL VPN credentials to crash the SSL VPN daemon by sending a large LCP packet, when tunnel mode is enabled. Arbitrary code execution may be theoretically possible, albeit practically very difficult to achieve in this context

CVE Status: Analyzed

References:

[email protected]

Metrics:

Attribute	Value
Attack Complexity	LOW
Attack Vector	NETWORK
Availability Impact	LOW
Base Score	5.4
Base Severity	MEDIUM
Confidentiality Impact	NONE
Integrity Impact	LOW
Privileges Required	LOW
Scope	UNCHANGED
User Interaction	NONE
Vector String	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
Exploitability Score	2.8
Impact Score	2.5
Source	[email protected]
Type	Secondary

Links:

Exploit-db
Github