Vulnerability identifier: #VU66096
Vulnerability 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:
CWE-ID:
CWE-476
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
BIG-IP
Hardware solutions /
Firmware
Vendor: F5 Networks
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: 16.1.0 - 16.1.3, 15.1.0 - 15.1.6
External links
http://support.f5.com/csp/article/K59197053
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.