[3277] in bugtraq
Re: Vulnerability in the Xt library (fwd)
daemon@ATHENA.MIT.EDU (Ollivier Robert)
Mon Aug 26 02:02:32 1996
Date: Sun, 25 Aug 1996 22:05:16 -0700
Reply-To: Bugtraq List <BUGTRAQ@NETSPACE.ORG>
From: Ollivier Robert <roberto@keltia.freenix.fr>
To: Multiple recipients of list BUGTRAQ <BUGTRAQ@NETSPACE.ORG>
In-Reply-To: <199608260207.WAA11517@irbs.irbs.com>; from John Capo on Aug 25,
1996 22:07:49 -0400
According to John Capo:
> Stefan `Sec` Zehl writes:
> > I can confirm this for Freebsd 2.2-Current, it gives me a euid=0 /bin/sh
> I can also. The xterm cores on -stable though.
I sent a patch and a portable version of snprintf to both the X consortium
and Xfree86 yesterday. It will be in 3.1.2F.
If you have XFree sources on-line and are willing to recompile, apply the
following patch in xc/lib/Xt:
--- Error.c.old Sun Aug 25 14:57:28 1996
+++ Error.c Sun Aug 25 14:47:14 1996
@@ -238,5 +238,5 @@
(void) memmove((char*)par, (char*)params, i * sizeof(String) );
bzero( &par[i], (10-i) * sizeof(String) );
- (void) sprintf(message, buffer, par[0], par[1], par[2], par[3],
+ (void) snprintf(message, sizeof message, buffer, par[0], par[1], par[2], par[3],
par[4], par[5], par[6], par[7], par[8], par[9]);
XtError(message);
@@ -263,5 +263,5 @@
(void) memmove((char*)par, (char*)params, i * sizeof(String) );
bzero ( &par[i], (10-i) * sizeof(String) );
- (void) sprintf(message, buffer, par[0], par[1], par[2], par[3],
+ (void) snprintf(message, sizeof message, buffer, par[0], par[1], par[2], par[3],
par[4], par[5], par[6], par[7], par[8], par[9]);
XtWarning(message);
--
Ollivier ROBERT -=- The daemon is FREE! -=- roberto@keltia.freenix.fr
FreeBSD keltia.freenix.fr 2.2-CURRENT #18: Sun Aug 18 19:16:52 MET DST 1996
