Denial of service in F5 BIG-IP CGNAT LSN



Published: 2022-05-06
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2022-26517
CWE-ID CWE-682
Exploitation vector Network
Public exploit N/A
Vulnerable software
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BIG-IP
Hardware solutions / Firmware

Vendor F5 Networks, Inc.

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Incorrect calculation

EUVDB-ID: #VU62844

Risk: Medium

CVSSv3.1: 5.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-26517

CWE-ID: CWE-682 - Incorrect Calculation

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to incorrect calculation error in the CGNAT LSN feature. A remote attacker can send specially crafted traffic to the system and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

BIG-IP: 13.1.0 - 16.0.1


CPE2.3 External links

http://support.f5.com/csp/article/K54082580

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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