Perl win32_stat Function Buffer Overflow Vulnerability

Secunia Advisory: SA11298
Release Date: 2004-04-06
Critical:Highly critical
Impact: System access
Where: From remote
Solution Status: Vendor Patch
Software:ActivePerl 5.x
Perl 5.x
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CVE reference:CVE-2004-0377
Description:
iDEFENSE has discovered a vulnerability in Perl and ActivePerl, which potentially can be exploited by malicious people to compromise a vulnerable system.
The vulnerability is caused due to a boundary error within the "win32_stat()" function. This can be exploited to cause a buffer overflow by passing an overly long filename with a backslash appended at the end to the function.
Successful exploitation may allow execution of arbitrary code on a system where it is possible for a person to supply a specially crafted pathname to a Perl script (e.g. on a web server).
The vulnerability has been reported in Perl 5.8.3 and prior for Windows.
Solution:
The vulnerability will reportedly be fixed in Perl 5.8.4.
Patches are available for ActivePerl.
Perl 5.9.x development branch:
http://public.activestate.com/cgi-bin/perlbrowse?patch=22466
Perl 5.8.x maintenance branch:
http://public.activestate.com/cgi-bin/perlbrowse?patch=22552
Provided and/or discovered by:
Greg MacManus, iDEFENSE Labs.
Original Advisory:
http://www.idefense.com/applicat...y?id=93&type=vulnerabilities
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