[12085] in bugtraq
Re: Kvt bug
daemon@ATHENA.MIT.EDU (Dmitry Yu. Bolkhovityanov)
Fri Oct 1 14:24:45 1999
Message-Id: <CA90FE44814@csd.inp.nsk.su>
Date: Fri, 1 Oct 1999 15:14:36 +0700
Reply-To: "Dmitry Yu. Bolkhovityanov" <D.Yu.Bolkhovityanov@INP.NSK.SU>
From: "Dmitry Yu. Bolkhovityanov" <D.Yu.Bolkhovityanov@INP.NSK.SU>
X-To: BUGTRAQ@SECURITYFOCUS.COM
To: BUGTRAQ@SECURITYFOCUS.COM
On 30 Sep 99 at 11:56, pioppo@FERRARA.LINUX.IT wrote:
> Wed, 29 Sep 1999, in a message titled "Kvt bug", Sebastian Wain wrote:
>
> >In the xterm there is a feature to change the title of the window
> >You can change the title of the window sending one of the escape codes of the
> >xterm.
> >(linux: man console_codes)
>
> >By Example:
>
> >ESC]2;This is my Xterm^G
>
> >This escape code changes the xterm's title to "This is my Xterm"
>
> >Obviously You can do the same using the kvt (Kde Virtual Terminal).
> >But the kvt has a buffer overflow. If the size of the new title of the
> >window is big enough then the kvt will do a core dump.
>
> xterm too (version 3.3.2.3) coredumps...
> I tried this with echo -e "\033]2;(60e+06 times 'a')\007"
Tried the same with xterm 3.3.3 on i586, 64M RAM, 128M swap, continuously
increasing the number of 'a's (perl -e 'print "a" x 60000', 600000,
600000...). But instead of xterm crash got Fvwm2 hangup after 6e6 "a"s.
I.e. everything else works -- I ould even press the "play" button in x11amp
with mouse, except Fvwm2.
"strace -p <fvwm2pid>" shows that Fvwm2 waits infinitely on select().
The only choice was to kill the window manager.
All progs are from stock RedHat 6.0/i386 -- "Fvwm Version 2.2 compiled on
Apr 9 1999 at 16:15:38".
___________________________________________________________________
Dmitry Yu. Bolkhovityanov | Novosibirsk, RUSSIA
phone (383-2)-39-49-56 | The Budker Institute of Nuclear Physics
| Lab. 5-13
