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Category:   Application (Generic)  >   ChBg Vendors:   chbg.sourceforge.net
(Mandrake Issues Fix) ChBg Buffer Overflow in simplify_path() Lets Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1013058
SecurityTracker URL:  http://securitytracker.com/id/1013058
CVE Reference:   CVE-2004-1264   (Links to External Site)
Date:  Feb 2 2005
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 1.5
Description:   A vulnerability was reported in ChBg. A remote user can cause arbitrary code to be executed by the target user.

D. J. Bernstein reported that a remote user can create a specially crafted ChBg scenario file that, when processed by the target user with ChBg, will execute arbitrary code on the target user's system. The code will run with the privileges of the target user.

The buffer overflow resides in the simplify_path() function in 'config.c'.

FreeBSD is not affected because PATH_MAX is set to 1024, preventing the buffer overflow.

Danny Lungstrom is credited with discovering this flaw.

Impact:   A remote user can cause arbitrary code to be executed by the target user with the privileges of the target user.
Solution:   Mandrake has released a fix.

Mandrakelinux 10.0:
ad75998c3c755b53d14e522e11bcdd51 10.0/RPMS/chbg-1.5-8.1.100mdk.i586.rpm
dc4f685d1d45cd2955fe28752561ede0 10.0/SRPMS/chbg-1.5-8.1.100mdk.src.rpm

Mandrakelinux 10.0/AMD64:
dc64f6024563bf3b798d264e9263dfe2 amd64/10.0/RPMS/chbg-1.5-8.1.100mdk.amd64.rpm
dc4f685d1d45cd2955fe28752561ede0 amd64/10.0/SRPMS/chbg-1.5-8.1.100mdk.src.rpm

Mandrakelinux 10.1:
31fc57a52b23d8cb0392691b10baa1d3 10.1/RPMS/chbg-1.5-8.1.101mdk.i586.rpm
b82eab41d3a1291378c3021b9df0b881 10.1/SRPMS/chbg-1.5-8.1.101mdk.src.rpm

Mandrakelinux 10.1/X86_64:
7f1b1064b15f6ccb63cce6b1210e6166 x86_64/10.1/RPMS/chbg-1.5-8.1.101mdk.x86_64.rpm
b82eab41d3a1291378c3021b9df0b881 x86_64/10.1/SRPMS/chbg-1.5-8.1.101mdk.src.rpm

Corporate Server 3.0:
2342c2c9f3077fb27797d8a581c16ce5 corporate/3.0/RPMS/chbg-1.5-8.1.C30mdk.i586.rpm
d403782e9889a596d63c08c54515dc6d corporate/3.0/SRPMS/chbg-1.5-8.1.C30mdk.src.rpm

Corporate Server 3.0/x86_64:
d1b766e30b125606851bdffc19df67c1 x86_64/corporate/3.0/RPMS/chbg-1.5-8.1.C30mdk.x86_64.rpm
d403782e9889a596d63c08c54515dc6d x86_64/corporate/3.0/SRPMS/chbg-1.5-8.1.C30mdk.src.rpm

Vendor URL:  chbg.sourceforge.net/ (Links to External Site)
Cause:   Boundary error
Underlying OS:  Linux (Mandriva/Mandrake)
Underlying OS Comments:  10.0, 10.1, Corporate Server 3.0

Message History:   This archive entry is a follow-up to the message listed below.
Dec 16 2004 ChBg Buffer Overflow in simplify_path() Lets Remote Users Execute Arbitrary Code



 Source Message Contents

Subject:  [Security Announce] MDKSA-2005:027 - Updated chbg packages fix


This is a multi-part message in MIME format...

------------=_1107321560-31468-772

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

 _______________________________________________________________________

                 Mandrakelinux Security Update Advisory
 _______________________________________________________________________

 Package name:           chbg
 Advisory ID:            MDKSA-2005:027
 Date:                   February 1st, 2005

 Affected versions:	 10.0, 10.1, Corporate Server 3.0
 ______________________________________________________________________

 Problem Description:

 A vulnerability in chbg was discovered by Danny Lungstrom.  A
 maliciously-crafted configuration/scenario file could overflow a
 buffer leading to the potential execution of arbitrary code.
 
 The updated packages are patched to prevent the problem.
 _______________________________________________________________________

 References:

  http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1264
 ______________________________________________________________________

 Updated Packages:
  
 Mandrakelinux 10.0:
 ad75998c3c755b53d14e522e11bcdd51  10.0/RPMS/chbg-1.5-8.1.100mdk.i586.rpm
 dc4f685d1d45cd2955fe28752561ede0  10.0/SRPMS/chbg-1.5-8.1.100mdk.src.rpm

 Mandrakelinux 10.0/AMD64:
 dc64f6024563bf3b798d264e9263dfe2  amd64/10.0/RPMS/chbg-1.5-8.1.100mdk.amd64.rpm
 dc4f685d1d45cd2955fe28752561ede0  amd64/10.0/SRPMS/chbg-1.5-8.1.100mdk.src.rpm

 Mandrakelinux 10.1:
 31fc57a52b23d8cb0392691b10baa1d3  10.1/RPMS/chbg-1.5-8.1.101mdk.i586.rpm
 b82eab41d3a1291378c3021b9df0b881  10.1/SRPMS/chbg-1.5-8.1.101mdk.src.rpm

 Mandrakelinux 10.1/X86_64:
 7f1b1064b15f6ccb63cce6b1210e6166  x86_64/10.1/RPMS/chbg-1.5-8.1.101mdk.x86_64.rpm
 b82eab41d3a1291378c3021b9df0b881  x86_64/10.1/SRPMS/chbg-1.5-8.1.101mdk.src.rpm

 Corporate Server 3.0:
 2342c2c9f3077fb27797d8a581c16ce5  corporate/3.0/RPMS/chbg-1.5-8.1.C30mdk.i586.rpm
 d403782e9889a596d63c08c54515dc6d  corporate/3.0/SRPMS/chbg-1.5-8.1.C30mdk.src.rpm

 Corporate Server 3.0/x86_64:
 d1b766e30b125606851bdffc19df67c1  x86_64/corporate/3.0/RPMS/chbg-1.5-8.1.C30mdk.x86_64.rpm
 d403782e9889a596d63c08c54515dc6d  x86_64/corporate/3.0/SRPMS/chbg-1.5-8.1.C30mdk.src.rpm
 _______________________________________________________________________

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

 All packages are signed by Mandrakesoft for security.  You can obtain
 the GPG public key of the Mandrakelinux Security Team by executing:

  gpg --recv-keys --keyserver pgp.mit.edu 0x22458A98

 You can view other update advisories for Mandrakelinux at:

  http://www.mandrakesoft.com/security/advisories

 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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____________________________________________________
Want to buy your Pack or Services from MandrakeSoft? 
Go to http://www.mandrakestore.com
Join the Club : http://www.mandrakeclub.com
____________________________________________________

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