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Category:   Application (Security)  >   Clam AntiVirus Vendors:   clamav.sourceforge.net
Clam AntiVirus Heap Overflow in pefromupx() in Processing UPX Files Lets Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1016645
SecurityTracker URL:  http://securitytracker.com/id/1016645
CVE Reference:   CVE-2006-4018   (Links to External Site)
Updated:  Jun 8 2008
Original Entry Date:  Aug 7 2006
Impact:   Execution of arbitrary code via network, User access via network
Vendor Confirmed:  Yes  Exploit Included:  Yes  
Version(s): 0.88.3 and prior versions
Description:   A vulnerability was reported in Clam AntiVirus. A remote user can cause arbitrary code to be executed on the target user's system.

A remote user can create a specially crafted UPX-compressed file that, when processed by Clam AntiVirus, will trigger a heap overflow and execute arbitrary code on the target system. The code will run with the privileges of the target service.

The vulnerability resides in the pefromupx() function in 'libclamav/upx.c'.

Damian Put reported this vulnerability.

The original advisory is available at:

http://www.overflow.pl/adv/clamav_upx_heap.txt

Impact:   A remote user can create a UPX-compressed file that, when processed by the target system, will execute arbitrary code on the target system.
Solution:   The vendor plans to issued a fixed version (0.88.4).
Vendor URL:  www.clamav.net/ (Links to External Site)
Cause:   Boundary error
Underlying OS:  Linux (Any), UNIX (Any)

Message History:   None.


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