Buffer overflow in BIG-IP DNS and BIG-IP GTM - CVE-2021-22982
Published: February 11, 2021
Vulnerability identifier: #VU50617
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-22982
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: F5 Networks
Affected software:
BIG-IP DNS
BIG-IP GTM
BIG-IP DNS
BIG-IP GTM
Detailed vulnerability description
The vulnerability allows a remote user to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error in big3d. A remote user can send specially crafted data to the big3d agent, trigger a buffer overflow and crash the agent.
How to mitigate CVE-2021-22982
Install updates from vendor's website.