CVE-2020-12819: 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…

PriorityP350high7.5CVSS 3.1

AVNACHPRLUINSUCHIHAH

EPSS

0.77%

51.3th percentile

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

Affected

10 ranges

Vendor	Product	Version range	Fixed in
fortinet	fortigate	—	—
fortinet	fortios	< 5.6.13	5.6.13
fortinet	fortios	—	—
fortinet	fortios	5.6.0 – 5.6.12	—
fortinet	fortios	>= 6.0.0 < 6.0.11	6.0.11
fortinet	fortios	6.0.0 – 6.0.10	—
fortinet	fortios	>= 6.2.0 < 6.2.5	6.2.5
fortinet	fortios	6.2.0 – 6.2.4	—
fortinet	fortios	>= 6.4.0 < 6.4.2	6.4.2
fortinet	fortios	6.4.0 – 6.4.1	—

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