vulnerability
F5 Networks: CVE-2021-22981: K09121542: BIG-IP SSL/TLS vulnerability CVE-2021-22981
Severity | CVSS | Published | Added | Modified |
---|---|---|---|---|
6 | (AV:N/AC:M/Au:N/C:P/I:P/A:N) | Feb 10, 2021 | Feb 11, 2021 | Aug 23, 2024 |
Severity
6
CVSS
(AV:N/AC:M/Au:N/C:P/I:P/A:N)
Published
Feb 10, 2021
Added
Feb 11, 2021
Modified
Aug 23, 2024
Description
On all versions of BIG-IP 12.1.x and 11.6.x, the original TLS protocol includes a weakness in the master secret negotiation that is mitigated by the Extended Master Secret (EMS) extension defined in RFC 7627. TLS connections that do not use EMS are vulnerable to man-in-the-middle attacks during renegotiation. Note: Software versions which have reached End of Software Development (EoSD) are not evaluated.
Solution
f5-big-ip-upgrade-latest

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