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Cisco Bug: CSCtd31831 - ASA traceback in Thread Name: Checkheaps

Last Modified

Nov 08, 2016

Products (1)

  • Cisco ASA 5500-X Series Firewalls

Known Affected Releases


Description (partial)


Active ASA unit tracebacks in Thread Name: Checkheaps


One of possible triggers has been found to be following scenario:
The user attempts to copy a file from the ASA to a TFTP destination with a dest filename very close to the character limit (the limit is 63 characters). When within 4 or fewer characters of this limit the box could crash due to memory corruption.
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