Symptom

ASA reloads when establishing 2 different ASDM sessions from different users or if ASDM logging is enabled. if connected to the ASA console when the traceback is triggered following is displayed: asa# Rebooting... (status 0x8b) No crashinfo is generated but a coredump. This can be identified by checking the coredumpfsys folder on flash (e.g.): asa# dir disk0:/coredumpfsys Directory of disk0:/coredumpfsys/ 139266 -rw- 1485454908 16:37:21 May 03 2019 core.lina.core-0.10466.1556915824.gz <<< Core file created on March 3rd at 4:37pm EST matching the reload event

Conditions

ASA running any affected code and enabled with ASDM

Workaround

> Use a single user when establishing ASDM session to the ASA > Use SSH as management method > If a TACACS server is available, configure aaa authentication for http sessions and on the TACACS server allow session only if matching one particular user > For single context mode: Use the command "quota management-session http 1" (This will allow only one single HTTP management session to the box preventing the crash) > For multi context mode: Use the command "quota management-session http 1" on each existing context configured on the box (This will allow only one single HTTP management session to the box preventing the crash) > Disable ASDM logging

Further Problem Description