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Introduction
Please note the following Field Notice with Impact Rating High:
FN74271 of April 22, 2025
described in:
CSCwm48867 swapon/swapoff cron killing unintended processes every 6 hours
CSCwh92320 Memory Allocation Limit for Oracle pga and Oracle sga process
CSCwh25160 swap cleanup script to drop the swap area and program the cron:
CSCwi47249 Reuse AcsSyslog objects in AcsSyslogProcessor instead of creating new ones
Summary
Due to a defect in the Operating System, Cisco ISE may retain Swap Memory without deallocating it. This condition may cause general Cisco ISE Service degradation and system instability (e.g., unexpected System Reload, Cisco ISE Authentication latency, Cisco ISE User Interface latency, etc.).
Note: Cisco ISE 3.1+ are susceptible to this Swap Memory issue.
Workaround
There is no Workaround that will solve this vulnerability!!!
Affected Products & Fixed Software
The vulnerability affects Cisco ISE in the following versions:
To access the Cisco ISE version that fixes this Field Notice:
- 3.1 P10 of January 28, 2025
- 3.2 P7 of October 10, 2024 with HP-3.2P7-CSCwm48867 of April 02, 2025
- 3.3 P5 of April 10, 2025
- 3.4 P1of December 18, 2024
Hope this helps !!!