Denial of service in BIG-IP FastL4 profile



Published: 2022-01-20
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2022-23029
CWE-ID CWE-367
Exploitation vector Network
Public exploit N/A
Vulnerable software
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BIG-IP
Hardware solutions / Firmware

Vendor F5 Networks

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Time-of-check Time-of-use (TOCTOU) Race Condition

EUVDB-ID: #VU59889

Risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-23029

CWE-ID: CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a race condition in Virtual server with FastL4 profile. A remote attacker can cause a degradation of service and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

BIG-IP: 11.6.1 - 15.1.4

External links

http://support.f5.com/csp/article/K50343028


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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