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SuSE Security Announcement - mount

Feb 10, 2000, 22:27 (1 Talkback[s])
(Other stories by Marc Heuse)

Date: Thu, 10 Feb 2000 23:05:55 +0100 (MET)
From: Marc Heuse marc@suse.de
Subject: [suse-security-announce] SuSE Security Announcement - mount


SuSE Security Announcement

Package: util < 2.10f
Date: Thu Feb 10 20:03:43 CET 2000

Affected SuSE versions: all
Vulnerability Type: (unlikely) local root compromise
SuSE default package: yes
Other affected systems: all linux systems using util < 2.10f


A security hole was discovered in the package mentioned above. Please update it as soon as possible or disable the service if you are using this software on your SuSE Linux installation(s).

Other Linux distributions or operating systems might be affected as well, please contact your vendor for information about this issue.

Please note that we provide this information on an "as-is" basis only. There is no warranty whatsoever and no liability for any direct, indirect or incidental damage arising from this information or the installation of the update package.


1. Problem Description

The mount/umount command doesn't do proper bounds checking on user input.

2. Impact

If an attacker executes mount/umount with a long relative pathname, it will overwrite dynamic allocated memory of the realpath function. It is possible that an attacker could gain root privileges by modifying the heap data, however we were not able to exploit it.

3. Solution

Update the package from our FTP server or remove the suid bits.


Please verify these md5 checksums of the updates before installing: (For SuSE 6.0, please use the 6.1 updates)

8fffa6e7ce36b51f190652189629a2c0 ftp://ftp.suse.com/pub/suse/axp/update/6.1/a1/util-2.10f-4.alpha.rpm
121bf103d58cc9e959f910a0437285bd ftp://ftp.suse.com/pub/suse/axp/update/6.3/a1/util-2.10f-0.alpha.rpm
96166ddbe17ef1aabf6531a34e48d386 ftp://ftp.suse.com/pub/suse/i386/update/6.1/a1/util-2.10f-3.i386.rpm
285c0d41b2932b068fdac3f860e3446e ftp://ftp.suse.com/pub/suse/i386/update/6.2/a1/util-2.10f-4.i386.rpm
452143c94bcae39ec9adc5922be9acc9 ftp://ftp.suse.com/pub/suse/i386/update/6.3/a1/util-2.10f-4.i386.rpm


You can find updates on our ftp-Server:

ftp://ftp.suse.com/pub/suse/i386/update for Intel processors
ftp://ftp.suse.com/pub/suse/axp/update for Alpha processors

or try the following web pages for a list of mirrors:
http://www.suse.de/ftp.html
http://www.suse.com/ftp_new.html

Our webpage for patches:
http://www.suse.de/patches/index.html

Our webpage for security announcements:
http://www.suse.de/security

If you want to report vulnerabilities, please contact security@suse.de


SuSE has got two free security mailing list services to which any interested party may subscribe:

suse-security@suse.com - moderated and for general/linux/SuSE security discussions. All SuSE security announcements are sent to this list.

suse-security-announce@suse.com - SuSE's announce-only mailing list. Only SuSE's security annoucements are sent to this list.

To subscribe to the list, send a message to:
suse-security-subscribe@suse.com

To remove your address from the list, send a message to:
suse-security-unsubscribe@suse.com

Send mail to the following for info and FAQ for this list:
suse-security-info@suse.com
suse-security-faq@suse.com