CVE-2020-12819
Last modified
CVE-2020-12819 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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. EPSS estimates a 0.77% chance of exploitation in the next 30 days.
Description
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
Metrics
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Fortinet | Fortios | < 5.6.13 |
| Fortinet | Fortios | >= 6.0.0, < 6.0.11 |
| Fortinet | Fortios | >= 6.2.0, < 6.2.5 |
| Fortinet | Fortios | >= 6.4.0, < 6.4.2 |
References
- https://fortiguard.com/advisory/FG-IR-20-082Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
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