CVE-2023-36641: DOS in headers management

Published Nov 14, 2023
·
Updated

A null pointer dereference [CWE-476] in FortiOS and FortiProxy SSL VPN may allow an authenticated attacker to perform a DoS attack on the device via specifically crafted HTTP requests.

Other sources

A numeric truncation error in Fortinet FortiProxy version 7.2.0 through 7.2.4, FortiProxy version 7.0.0 through 7.0.10, FortiProxy 2.0 all versions, FortiProxy 1.2 all versions, FortiProxy 1.1, all versions, FortiProxy 1.0 all versions, FortiOS version 7.4.0, FortiOS version 7.2.0 through 7.2.5, FortiOS version 7.0.0 through 7.0.12, FortiOS 6.4 all versions, FortiOS 6.2 all versions, FortiOS 6.0 all versions allows attacker to denial of service via specifically crafted HTTP requests.

Affected Software

23 affected componentsFixes available
Fortinet FortiProxy>=1.0.0<=1.0.7
Fortinet FortiProxy>=1.1.0<=1.1.6
Fortinet FortiProxy>=1.2.0<=1.2.13
Fortinet FortiProxy>=2.0.0<=2.0.13
Fortinet FortiProxy>=7.0.0<=7.0.10
Fortinet FortiProxy>=7.2.0<=7.2.4
Fortinet FortiOS>=6.0.0<=6.0.17
Fortinet FortiOS>=6.2.0<=6.2.15
Fortinet FortiOS>=6.4.0<=6.4.14
Fortinet FortiOS>=7.0.0<=7.0.12
Fortinet FortiOS>=7.2.0<=7.2.5
Fortinet FortiOS=.
Fortinet FortiOS>=7.2.0<=7.2.5
Fortinet FortiOS>=7.0.0<=7.0.12
Fortinet FortiOS>=6.4
Fortinet FortiOS>=6.2
Fortinet FortiOS>=6.0
Fortinet FortiProxy>=7.2.0<=7.2.4
Fortinet FortiProxy>=7.0.0<=7.0.10
Fortinet FortiProxy>=2.0
Fortinet FortiProxy>=1.2
Fortinet FortiProxy>=1.1
Fortinet FortiProxy>=1.0

Remediation

Information

Please upgrade to FortiSASE version 23.3.b or above Please upgrade to FortiProxy version 7.2.5 or above Please upgrade to FortiProxy version 7.0.11 or above Please upgrade to FortiOS version 7.4.1 or above Please upgrade to FortiOS version 7.2.6 or above Please upgrade to FortiOS version 7.0.13 or above

Event History

Nov 14, 2023
Advisory Published
via FortiGuard·12:00 AM
CVE Published
06:05 PM
Data Sourced
06:05 PM
RemedyDescriptionSeverityWeakness

Frequently Asked Questions

1

What is the vulnerability ID for this Fortinet FortiProxy vulnerability?

The vulnerability ID for this Fortinet FortiProxy vulnerability is CVE-2023-36641.

2

What is the severity of CVE-2023-36641?

The severity of CVE-2023-36641 is medium, with a CVSS score of 6.2.

3

Which versions of Fortinet FortiProxy are affected by CVE-2023-36641?

Fortinet FortiProxy versions 1.0.0 through 1.0.7, 1.1.0 through 1.1.6, 1.2.0 through 1.2.13, 2.0.0 through 2.0.13, 7.0.0 through 7.0.10, and 7.2.0 through 7.2.4 are affected by CVE-2023-36641.

4

Which versions of FortiOS are affected by CVE-2023-36641?

FortiOS versions 6.0.0 through 6.0.17, 6.2.0 through 6.2.15, 6.4.0 through 6.4.14, 7.0.0 through 7.0.12, and 7.2.0 through 7.2.5 are affected by CVE-2023-36641.

5

How can I fix CVE-2023-36641?

To fix CVE-2023-36641, it is recommended to update to a patched version of Fortinet FortiProxy or FortiOS when available. Please refer to the vendor's security advisory for more information.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203