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Cisco Bug: CSCvi95641 - SG300 rebooting by "exit" command with FATAL ERROR ***** Reporting Task AAAT and TACACS auth

Last Modified

Nov 08, 2018

Products (1)

  • Cisco Small Business 500 Series Stackable Managed Switches

Known Affected Releases

1.4.0.88 1.4.8.6

Description (partial)

Symptom:
21-Mar-2018 13:21:37 :%TCP-F-TCPID: TCPG_abort_con : Invalid TCP id



***** FATAL ERROR ***** 

Reporting Task: AAAT.

Software Version: 1.4.8.6 (date  10-Jul-2017 time  17:14:12)

0x16aee8

0x16b44c

0x16700c

0x77cc90

0x5012dc

0x501bd4

0x501df0

0x408bb8

0x60ac44

0x60d8c8

0x611024

0x61144c

0x61c0f8

0x6224b4

0x6ac030

0x1223f0



***** END OF FATAL ERROR *****

Conditions:
When we're connecting via ssh to the switches and don't enter a command (no priv exec command, no conf commands) and just type "exit" to close the ssh session the switch starts rebooting and is not accessible for about 1-2mins (during reboot).
After the reboot it's accessible again and in console we can see it was a "warm-startup".

It doesn't depend which image version we're using, for me it looks like all are affected.
We're running mostly the up-to-date 1.4.8.6 - but I verified also other versions, i.e. 1.4.0.88.

customer is using puTTy in version 0.65 to connect.
But this is also happening with OpenSSH_7.2p2 and OpenSSL version 1.0.2g
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