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TITLE:
freeSSHd Two Denial of Service Vulnerabilities

SECUNIA ADVISORY ID:
SA32366

VERIFY ADVISORY:
http://secunia.com/advisories/32366/

CRITICAL:
Less critical

IMPACT:
DoS

WHERE:
>From remote

SOFTWARE:
freeSSHd 1.x
http://secunia.com/advisories/product/9607/

DESCRIPTION:
Jeremy Brown has discovered two vulnerabilities in freeSSHd, which
can be exploited by malicious users to cause a DoS (Denial of
Service).

The vulnerabilities are caused due to NULL-pointer dereference errors
in the processing of the SFTP "rename" and "realpath" commands. These
can be exploited to crash a freeSSHd server via an overly long string
passed as an argument to the affected commands.

The vulnerabilities are confirmed in version 1.2.1.14. Other versions
may also be affected.

SOLUTION:
Restrict access to trusted users only.

PROVIDED AND/OR DISCOVERED BY:
Jeremy Brown

ORIGINAL ADVISORY:
http://milw0rm.com/exploits/6800
http://milw0rm.com/exploits/6812

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