GCC FastJar Directory Traversal Lets Users Cause Files to Be Overwritten
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SecurityTracker Alert ID: 1017987
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SecurityTracker URL: http://securitytracker.com/id?1017987
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CVE Reference: CVE-2006-3619
(Links to External Site)
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Date: May 1 2007
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Impact: Modification of user information
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Fix Available: Yes
Exploit Included: Yes
Vendor Confirmed: Yes
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Version(s): 3.4.6 and prior versions; 4.1.1 and prior versions
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Description: A vulnerability was reported in GNU C++ Compiler (GCC). A remote user can cause files to be overwriten on the target system.
The extract_jar() function in 'jartool.c' does not properly validate user-supplied input. A remote user can create a jar archive
with specially crafted filenames that contain '../' directory traversal characters that, when unpacked by the target user via gcc,
will overwrite files with the privileges of the target user.
This vulnerability was reported in July 2006.
marcus at jet.franken.de
reported this vulnerability.
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Impact: A user can cause files to be overwritten on the target system.
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Solution: A fix is available via CVS (Revision 115946).
The vendor's advisory is available at:
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28359
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Vendor URL: gnu.org/ (Links to External Site)
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Cause: Input validation error
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Underlying OS: Linux (Any)
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Message History:
This archive entry has one or more follow-up message(s) listed below.
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Source Message Contents
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Date: Tue, 1 May 2007 14:17:09 -0400
Subject: gcc
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CVE: Directory traversal vulnerability in FastJar 0.93, as used in Gnu GCC 4.1.1 and
earlier, and 3.4.6 and earlier, allows user-assisted attackers to overwrite arbitrary
files via a .jar file containing filenames with "../" sequences.
CVE-2006-3619
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