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Buffer Overflow in fdmount (fwd)

daemon@ATHENA.MIT.EDU (Patrick J. Volkerding)
Fri May 26 00:44:09 2000

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Message-Id:  <Pine.LNX.4.21.0005251849250.2815-100000@fuzzy.slackware.com>
Date:         Thu, 25 May 2000 18:49:30 -0700
Reply-To: "Patrick J. Volkerding" <volkerdi@SLACKWARE.COM>
From: "Patrick J. Volkerding" <volkerdi@SLACKWARE.COM>
X-To:         BUGTRAQ@SECURITYFOCUS.COM
To: BUGTRAQ@SECURITYFOCUS.COM

---------- Forwarded message ----------
Date: Thu, 25 May 2000 17:12:46 -0700 (PDT)
From: Slackware Security Team <security@slackware.com>
To: slackware-security@slackware.com
Subject: Buffer Overflow in fdmount


fdmount vulnerability
---------------------

The fdmount program shipped with Slackware has been shown to be vulnerable to
a buffer overflow exploit.  A user must be in the "floppy" group to execute
fdmount, but because fdmount is suid root this is a security problem.

A patched fdmount which replaces the offending sprintf() call with a
vsnprintf() (thus closing the hole and eliminating the security risk) has been
posted in an updated floppy.tgz package in Slackware-current.  Please download
the new floppy.tgz and run upgradepkg on it.

ftp://ftp.slackware.com/pub/slackware/slackware-current/slakware/a1/floppy.tgz


- Slackware Security Team
  security@slackware.com

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