Bug ID 2008113: TLS Extended Master Secret Extension in F5OS

Last Modified: Sep 13, 2025

Affected Product(s):
F5OS F5OS-A, F5OS-C(all modules)

Known Affected Versions:
F5OS-A 1.5.2, F5OS-A 1.5.3, F5OS-A 1.8.0

Opened: Jul 31, 2025

Severity: 3-Major

Symptoms

EMS (extended_master_secret) extension is not present in F5OS-A versions 1.3.x and 1.4.x and F5OS-C versions 1.3.x,1.4.x,1.5.x

Impact

F5OS-A version < 1.5.x, Does not support EMS. F5OS-C version < 1.6.x, Does not support EMS.

Conditions

Openssl 1.0.2q in the F5OS-A/C does not support EMS.

Workaround

Upgrade to supported Openssl verison

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips