From: Secunia Security Advisories (sec-advsecunia.com)
Date: Thu Aug 16 2007 - 10:17:05 CDT

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TITLE:
rsync "f_name()" Off-By-One Vulnerability

SECUNIA ADVISORY ID:
SA26493

VERIFY ADVISORY:
http://secunia.com/advisories/26493/

CRITICAL:
Moderately critical

IMPACT:
DoS, System access

WHERE:
From remote

SOFTWARE:
rsync 2.x
http://secunia.com/product/2594/

DESCRIPTION:
Sebastian Krahmer has reported a vulnerability in rsync, which can
potentially be exploited by malicious people to compromise a
vulnerable system.

The vulnerability is caused due to an off-by-one error within the
"f_name()" function in flist.c and can be exploited to cause a
one-byte stack-based buffer overflow via an overly long directory
name.

Successful exploitation may allow execution of arbitrary code.

The vulnerability is reported in version 2.6.9. Other versions may
also be affected.

SOLUTION:
Use rsync in a trusted environment only.

PROVIDED AND/OR DISCOVERED BY:
Sebastian Krahmer

ORIGINAL ADVISORY:
http://c-skills.blogspot.com/2007/08/cve-2007-4091.html

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