Denial of service in BIG-IP TMM

1) NULL pointer dereference

EUVDB-ID: #VU66096

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-34651

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

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

The vulnerability exists due to a NULL pointer dreference error when an LTM Client or Server SSL profile with TLS 1.3 enabled is configured on a virtual server, along with an iRule that calls HTTP::respond. A remote attacker can send specially crafted request to the system and cause the Traffic Management Microkernel (TMM) to terminate.

Mitigation

Install update from vendor's website.

Vulnerable software versions

BIG-IP: 15.1.0 - 16.1.3

External links

http://support.f5.com/csp/article/K59197053

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.