PSIRTNull pointer dereference leading to sslvpn DOS
Summary
Two null pointer dereference [CWE-476] vulnerabilities in FortiOS may allow a remote attacker with low privileges to crash vpn service via a crafted http request.
| Version | Affected | Solution |
|---|---|---|
| FortiOS 7.6 | Not affected | Not Applicable |
| FortiOS 7.4 | 7.4.0 through 7.4.1 | Upgrade to 7.4.2 or above |
| FortiOS 7.2 | 7.2.0 through 7.2.5 | Upgrade to 7.2.6 or above |
| FortiOS 7.0 | 7.0 all versions | Migrate to a fixed release |
| FortiOS 6.4 | 6.4 all versions | Migrate to a fixed release |
| FortiOS 6.2 | 6.2 all versions | Migrate to a fixed release |
| FortiOS 6.0 | 6.0 all versions | Migrate to a fixed release |
Fortinet in Q4/23 has remediated this issue in FortiSASE version 23.4 and hence the customers need not perform any action.