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ls/dir Width Parameter Denial of Service Vulnerability
Secunia Advisory: SA10059
Release Date: 2003-10-23
Last Update: 2004-03-04
Popularity: 8,931 views

Critical:
Less critical
Impact: DoS
Where: From remote
Solution Status: Vendor Patch

Software:GNU Core Utilities (coreutils) 5.x
GNU File Utilities (fileutils) 4.x

Secunia CVSS-2 Score: Available in Secunia business solutions

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Advisory Content (Page 1 of 3)[ 1 ] [ 2 ] [ 3 ]

Description:
Two vulnerabilities have been identified in fileutils and coreutils, which can be exploited by malicious users to cause a DoS (Denial of Service).

It is possible to cause the "ls" and "dir" programs to consume large amounts of memory by supplying an overly large integer value as argument to the "-w" parameter.

Successful exploitation results in an integer overflow but this is reportedly not believed to be exploitable for command execution.

The vulnerabilities can also be triggered remotely via applications calling "ls" or "dir" without filtering input (eg. via WU-FTPD).

Change Page:
[ 1 ] [ 2 ] [ 3 ]



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