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Category:   Application (Generic)  >   Gzip Vendors:   GNU [multiple authors]
Gzip Integer Underflow in Processing LZW Compressed Archives May Let Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1023490
SecurityTracker URL:  http://securitytracker.com/id/1023490
CVE Reference:   CVE-2010-0001   (Links to External Site)
Date:  Jan 21 2010
Impact:   Execution of arbitrary code via network, User access via network

Version(s): 1.2.4
Description:   A vulnerability was reported in Gzip. A remote user can cause arbitrary code to be executed on the target user's system.

A remote user can create a specially crafted LZW compressed gzip archive that, when unzipped by the target user, will trigger an integer underflow and execute arbitrary code on the target system. The code will run with the privileges of the target user.

Aki Helin of Oulu University Secure Programming Group (OUSPG) reported this vulnerability.

Impact:   A remote user can create an archive that, when unzipped by the target user, will execute arbitrary code on the target user's system.
Solution:   No solution was available at the time of this entry.
Vendor URL:  gzip.org/ (Links to External Site)
Cause:   Boundary error
Underlying OS:  Linux (Any), UNIX (Any)

Message History:   This archive entry has one or more follow-up message(s) listed below.
Jan 21 2010 (Red Hat Issues Fix) Gzip Integer Underflow in Processing LZW Compressed Archives May Let Remote Users Execute Arbitrary Code
Red Hat has issued a fix for Red Hat Enterprise Linux 3, 4, and 5.
Jul 21 2010 (ncompress Issues Fix) Gzip Integer Underflow in Processing LZW Compressed Archives May Let Remote Users Execute Arbitrary Code
A fix is available for ncompress.



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