Cisco Bug: CSCtd54252 - traceback in checkheaps during backup of asa with smartcare appliance
Nov 09, 2016
- Cisco ASA 5500-X Series Firewalls
Known Affected Releases
Symptom: ASA reloads when given a file name that is too long. Conditions: This happens when using Smart Care appliance to take a backup of the ASA. This is due to the mechanism that Smart Care uses to specify the file name. The Smart Care Appliance simply specifies the source and target protocol in the copy command, and is then prompted for the rest: asa# copy startup-config tftp Address or name of remote host [10.1.1.1]? 10.2.2.2 Destination filename ? this-is-a-very-long-filename-that-is-used-as-a-negative-example.txt The filename is limited to 63 characters, and will be properly truncated, but then the ASA appends a realm parameter consisting of the interface name (+5 characters), and that causes the filename to exceed the buffer and cause a checkheaps failure, but only if it is using the last path structure in the array (there are 8 elements in the array).
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