EX SSL-VPN: Ngvpnmgr.exe crashes on Windows XP SP3 using Connect Tunnel client

03/26/2020 5 7811

DESCRIPTION:
EX SSL-VPN: Ngvpnmgr.exe crashes on Windows XP SP3 using Connect Tunnel client

RESOLUTION:

Description:

SonicWall support has found an issue where ngvpnmgr.exe crashes whenever a malformed packet is sent through the Tunnel.

Below is the snippet from the debug ngutil log showing the malformed packets sent through the Tunnel:

17:43:24.125 W [2]Skipping Malformed-Packet, src=192.168.89.1 dst=172.16.25.10 proto=17 dlen=32 iplen=67 data [
0000: 45 00 00 43 31 98 00 00-80 11 2a 4e c0 a8 59 01 E..C1.....*N..Y.
0010: ac 10 19 0a 06 53 00 35-00 2f 1a 42 00 01 00 01 .....S.5./.B....]

17:43:26.078 W [2]Skipping Malformed-Packet, src=192.168.89.1 dst=172.17.25.22 proto=17 dlen=32 iplen=69 data [
0000: 45 00 00 45 31 e3 00 00-80 11 29 f4 c0 a8 59 01 E..E1.....)...Y.
0010: ac 11 19 16 06 53 00 35-00 31 1a 31 00 01 00 01 .....S.5.1.1....]

17:43:47.140 W [2]Skipping Malformed-Packet, src=192.168.89.1 dst=172.16.25.10 proto=17 dlen=32 iplen=65 data [
0000: 45 00 00 41 37 33 00 00-80 11 24 b5 c0 a8 59 01 E..A73....$...Y.
0010: ac 10 19 0a 06 5c 00 35-00 2d 1a 3d 00 01 00 01 ......5.-.=....]

Resolution/Workaround:

This issue has been resolved in firmware version 10.0.2

Tracking ID:

79985