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Tasklist

FS#49973 - [x11vnc] Stack Smashing Detected

Attached to Project: Arch Linux
Opened by Chris (Someguy123) - Wednesday, 06 July 2016, 18:38 GMT
Last edited by Gaetan Bisson (vesath) - Saturday, 08 October 2016, 06:53 GMT
Task Type Bug Report
Category Upstream Bugs
Status Closed
Assigned To Gaetan Bisson (vesath)
Architecture All
Severity High
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 1
Private No

Details

Description:
X11VNC crashes after just a few minutes, at random, with a stack smashing error.
Found the following forum post showing the issue has existed for at least a month: https://bbs.archlinux.org/viewtopic.php?id=213859

Bug reported upstream: https://github.com/LibVNC/x11vnc/issues/27


Steps to reproduce:
- Run x11vnc with any Window Manager (I can confirm it crashes with i3wm at the least).
- Connect to the VNC server with your client of choice (I have tested it with RealVNC Viewer on OSX, as well as TigerVNC Viewer)
- Attempt to browse the web, use the terminal, adjust windows etc.
- After a few minutes, x11vnc will crash with "Stack Smashing detected"
This task depends upon

Closed by  Gaetan Bisson (vesath)
Saturday, 08 October 2016, 06:53 GMT
Reason for closing:  Fixed
Additional comments about closing:  x11vnc-1:0.9.13-9 in [extra]
Comment by Daniel Kamil Kozar (XAVeRY) - Friday, 07 October 2016, 21:48 GMT
Attached is a backport of the relevant commits from the github repo and a PKGBUILD including that patch. Should suffice as long as there is no upstream release.
   PKGBUILD (1.2 KiB)
   fix-buffer-overflows.patch (1 KiB)

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