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Category:   Application (Generic)  >   Sudo Vendors:   Miller, Todd C.
(Mandrake Issues Fix) Sudo Utility Has Heap Overflow That May Let Local Users Execute Arbitrary Code with Root Privileges
SecurityTracker Alert ID:  1004163
SecurityTracker URL:  http://securitytracker.com/id/1004163
CVE Reference:   CVE-2002-0184   (Links to External Site)
Updated:  Nov 19 2003
Original Entry Date:  Apr 26 2002
Impact:   Execution of arbitrary code via local system, Root access via local system
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 1.6.5p2 and prior
Description:   A vulnerability has been reported in the sudo utility. A local user may be able to obtain root privileges.

Global InterSec reported an off-by-five heap overflow in 'sudo'. A local user can apparently call sudo with a specially formatted argument for the -p command line option to trigger the overflow. It is reported that sudo may not correctly allocate memory when parsing the '%h' (hostname) or '%u' (username) strings in the argument in some situations. A local user could potentially trigger the overflow and execute arbitrary code with root privileges.

The exact nature of the conditions required to exploit this flaw were not provided. However, it is reported that the compile-time options and the length of the hostname may affect whether the application is vulnerable or not.

Impact:   A local user may be able to execute arbitrary code with root privileges in certain situations.
Solution:   The vendor has released a fix for Mandrake Linux.

Linux-Mandrake 7.1:
2214bb7c879f0c34425d379795a447ee 7.1/RPMS/sudo-1.6.4-3.1mdk.i586.rpm
552ef456ff9fd4028bd8371b808adae6 7.1/SRPMS/sudo-1.6.4-3.1mdk.src.rpm

Linux-Mandrake 7.2:
53cd161682fc5ec047bbab190037e7cb 7.2/RPMS/sudo-1.6.4-3.1mdk.i586.rpm
552ef456ff9fd4028bd8371b808adae6 7.2/SRPMS/sudo-1.6.4-3.1mdk.src.rpm

Mandrake Linux 8.0:
a35538cd7efe7c9a34a6dc81b767e3ea 8.0/RPMS/sudo-1.6.4-3.1mdk.i586.rpm
552ef456ff9fd4028bd8371b808adae6 8.0/SRPMS/sudo-1.6.4-3.1mdk.src.rpm

Mandrake Linux 8.0/ppc:
867b935b9e39afaca5535c25673f2860 ppc/8.0/RPMS/sudo-1.6.4-3.1mdk.ppc.rpm
552ef456ff9fd4028bd8371b808adae6 ppc/8.0/SRPMS/sudo-1.6.4-3.1mdk.src.rpm

Mandrake Linux 8.1:
d6cccdaaca2a338bcd75290bef1c3440 8.1/RPMS/sudo-1.6.4-3.1mdk.i586.rpm
552ef456ff9fd4028bd8371b808adae6 8.1/SRPMS/sudo-1.6.4-3.1mdk.src.rpm

Mandrake Linux 8.1/ia64:
80e0441fe8ebdd804adbe0fb3127c950 ia64/8.1/RPMS/sudo-1.6.4-3.1mdk.ia64.rpm
552ef456ff9fd4028bd8371b808adae6 ia64/8.1/SRPMS/sudo-1.6.4-3.1mdk.src.rpm

Mandrake Linux 8.2:
752d02e218508c12a3d4500e3c8fe842 8.2/RPMS/sudo-1.6.4-3.1mdk.i586.rpm
552ef456ff9fd4028bd8371b808adae6 8.2/SRPMS/sudo-1.6.4-3.1mdk.src.rpm

Mandrake Linux 8.2/ppc:
fa9ee180fdf44ed92f9c27ee96096471 ppc/8.2/RPMS/sudo-1.6.4-3.1mdk.ppc.rpm
552ef456ff9fd4028bd8371b808adae6 ppc/8.2/SRPMS/sudo-1.6.4-3.1mdk.src.rpm

Corporate Server 1.0.1:
2214bb7c879f0c34425d379795a447ee 1.0.1/RPMS/sudo-1.6.4-3.1mdk.i586.rpm
552ef456ff9fd4028bd8371b808adae6 1.0.1/SRPMS/sudo-1.6.4-3.1mdk.src.rpm

Single Network Firewall 7.2:
53cd161682fc5ec047bbab190037e7cb snf7.2/RPMS/sudo-1.6.4-3.1mdk.i586.rpm
552ef456ff9fd4028bd8371b808adae6 snf7.2/SRPMS/sudo-1.6.4-3.1mdk.src.rpm

Vendor URL:  www.courtesan.com/sudo/ (Links to External Site)
Cause:   Boundary error
Underlying OS:  Linux (Mandriva/Mandrake)
Underlying OS Comments:  7.1, 7.2, 8.0, 8.1, 8.2, Corporate Server 1.0.1, Single Network Firewall 7.2

Message History:   This archive entry is a follow-up to the message listed below.
Apr 25 2002 Sudo Utility Has Heap Overflow That May Let Local Users Execute Arbitrary Code with Root Privileges



 Source Message Contents

Subject:  [Security Announce] MDKSA-2002:028 - sudo update


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

________________________________________________________________________

                Mandrake Linux Security Update Advisory
________________________________________________________________________

Package name:           sudo
Advisory ID:            MDKSA-2002:028
Date:                   April 25th, 2002
Affected versions:      7.1, 7.2, 8.0, 8.1, 8.2, Corporate Server 1.0.1
                        Single Network Firewall 7.2
________________________________________________________________________

Problem Description:

 A problem was discovered by fc, with further research by Global
 InterSec, in the sudo program with the password prompt parameter
 (-p).  Sudo can be tricked into allocating less memory than it should
 for the prompt and in certain conditions it is possible to exploit this
 flaw to corrupt the heap in such a way that could be used to execute
 arbitary commands.  Because sudo is generally suid root, this can lead
 to an elevation of privilege for local users.
________________________________________________________________________

References:

  http://www.globalintersec.com/adv/sudo-2002041701.txt
________________________________________________________________________

Updated Packages:

 Linux-Mandrake 7.1:
 2214bb7c879f0c34425d379795a447ee  7.1/RPMS/sudo-1.6.4-3.1mdk.i586.rpm
 552ef456ff9fd4028bd8371b808adae6  7.1/SRPMS/sudo-1.6.4-3.1mdk.src.rpm

 Linux-Mandrake 7.2:
 53cd161682fc5ec047bbab190037e7cb  7.2/RPMS/sudo-1.6.4-3.1mdk.i586.rpm
 552ef456ff9fd4028bd8371b808adae6  7.2/SRPMS/sudo-1.6.4-3.1mdk.src.rpm

 Mandrake Linux 8.0:
 a35538cd7efe7c9a34a6dc81b767e3ea  8.0/RPMS/sudo-1.6.4-3.1mdk.i586.rpm
 552ef456ff9fd4028bd8371b808adae6  8.0/SRPMS/sudo-1.6.4-3.1mdk.src.rpm

 Mandrake Linux 8.0/ppc:
 867b935b9e39afaca5535c25673f2860  ppc/8.0/RPMS/sudo-1.6.4-3.1mdk.ppc.rpm
 552ef456ff9fd4028bd8371b808adae6  ppc/8.0/SRPMS/sudo-1.6.4-3.1mdk.src.rpm

 Mandrake Linux 8.1:
 d6cccdaaca2a338bcd75290bef1c3440  8.1/RPMS/sudo-1.6.4-3.1mdk.i586.rpm
 552ef456ff9fd4028bd8371b808adae6  8.1/SRPMS/sudo-1.6.4-3.1mdk.src.rpm

 Mandrake Linux 8.1/ia64:
 80e0441fe8ebdd804adbe0fb3127c950  ia64/8.1/RPMS/sudo-1.6.4-3.1mdk.ia64.rpm
 552ef456ff9fd4028bd8371b808adae6  ia64/8.1/SRPMS/sudo-1.6.4-3.1mdk.src.rpm

 Mandrake Linux 8.2:
 752d02e218508c12a3d4500e3c8fe842  8.2/RPMS/sudo-1.6.4-3.1mdk.i586.rpm
 552ef456ff9fd4028bd8371b808adae6  8.2/SRPMS/sudo-1.6.4-3.1mdk.src.rpm

 Mandrake Linux 8.2/ppc:
 fa9ee180fdf44ed92f9c27ee96096471  ppc/8.2/RPMS/sudo-1.6.4-3.1mdk.ppc.rpm
 552ef456ff9fd4028bd8371b808adae6  ppc/8.2/SRPMS/sudo-1.6.4-3.1mdk.src.rpm

 Corporate Server 1.0.1:
 2214bb7c879f0c34425d379795a447ee  1.0.1/RPMS/sudo-1.6.4-3.1mdk.i586.rpm
 552ef456ff9fd4028bd8371b808adae6  1.0.1/SRPMS/sudo-1.6.4-3.1mdk.src.rpm

 Single Network Firewall 7.2:
 53cd161682fc5ec047bbab190037e7cb  snf7.2/RPMS/sudo-1.6.4-3.1mdk.i586.rpm
 552ef456ff9fd4028bd8371b808adae6  snf7.2/SRPMS/sudo-1.6.4-3.1mdk.src.rpm
________________________________________________________________________

Bug IDs fixed (see https://qa.mandrakesoft.com for more information):

________________________________________________________________________

To upgrade automatically, use MandrakeUpdate.  The verification of md5
checksums and GPG signatures is performed automatically for you.

If you want to upgrade manually, download the updated package from one 
of our FTP server mirrors and upgrade with "rpm -Fvh *.rpm".  A list of
FTP mirrors can be obtained from:

  http://www.mandrakesecure.net/en/ftp.php

Please verify the update prior to upgrading to ensure the integrity of
the downloaded package.  You can do this with the command:

  rpm --checksig <filename>

All packages are signed by MandrakeSoft for security.  You can obtain
the GPG public key of the Mandrake Linux Security Team from:

  https://www.mandrakesecure.net/RPM-GPG-KEYS

Please be aware that sometimes it takes the mirrors a few hours to 
update.

You can view other update advisories for Mandrake Linux at:

  http://www.mandrakesecure.net/en/advisories/

MandrakeSoft has several security-related mailing list services that
anyone can subscribe to.  Information on these lists can be obtained by
visiting:

  http://www.mandrakesecure.net/en/mlist.php

If you want to report vulnerabilities, please contact

  security@linux-mandrake.com
________________________________________________________________________

Type Bits/KeyID     Date       User ID
pub  1024D/22458A98 2000-07-10 Linux Mandrake Security Team
  <security@linux-mandrake.com>


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