Public bug reported:
I have Ubuntu 26.04 installed (Description: Ubuntu 26.04 LTS, Release:
26.04) with pcsc-lite 2.4.1-1 and openconnect 9.12-3.3
I'm trying to connect to a corporate Cisco VPN GW uwing openconnect and Gemalto
token. First I extract a webvpn cookie and I'd use that cookie to actually
establish the VPN connection.
I run openvpn like this:
openconnect -vvvv --servercert <vpn server cert> -p <token pin> -c <token URL>
<vpn gw/group> --cookieonly --useragent=AnyConnect
The authentication process completes, openconnect outputs:
...
Connection: Keep-Alive
Date: Wed, 24 Jun 2026 13:27:18 GMT
X-Frame-Options: SAMEORIGIN
Strict-Transport-Security: max-age=31536000; includeSubDomains
X-Content-Type-Options: nosniff
X-XSS-Protection: 1
Content-Security-Policy: default-src 'self' 'unsafe-inline' 'unsafe-eval' data:
blob:; frame-ancestors 'self'; base-uri 'self'; block-all-mixed-content
Cross-Origin-Opener-Policy: same-origin-allow-popups
X-Aggregate-Auth: 1
HTTP body chunked (-2)
XML POST enabled
openconnect_strapkey=<strapkey>; webvpn=<cookie>
and then
[1] 1596404 segmentation fault openconnect -vvvv --servercert -p <token
pin> -c <vpn gw/group>
kern.log shows:
2026-06-24T15:27:19.053274+02:00 desktop kernel: openconnect[1596404]: segfault
at 21 ip 000075fb8d037770 sp 00007ffc5cd81c80 error 4 in
libpcsclite_real.so.1[2770,75fb8d037000+6000] likely on CPU 8 (core 5, socket 0)
2026-06-24T15:27:19.053278+02:00 desktop kernel: Code: 89 fc 53 48 83 ec 08 48
8b 5a 08 48 39 d9 75 1a eb 38 0f 1f 84 00 00 00 00 00 48 8b 5b 08 49 39 5c 24
08 74 25 49 8b 44 24 48 <48> 8b 3b 4c 89 ee ff d0 85 c0 74 e4 48 8b 03 48 83 c4
08 5b 41 5c
Unfortunatelly, there is no core dump file (or not that I can see).
Since this openconnect call is part of a VPN connection script, I cannot
use the output.
** Affects: openconnect (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/2158114
Title:
openconnect crashes with segmentation fault on getting webvpn cookie
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