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TITLE:
bbs100 Multiple Denial of Service Vulnerabilities

SECUNIA ADVISORY ID:
SA25924

VERIFY ADVISORY:
http://secunia.com/advisories/25924/

CRITICAL:
Moderately critical

IMPACT:
DoS

WHERE:
>From remote

SOFTWARE:
bbs100 3.x
http://secunia.com/product/14695/

DESCRIPTION:
Some vulnerabilities have been reported in bbs100, which potentially
can be exploited by malicious users or malicious people to cause a
DoS (Denial of Service).

1) An unspecified error exists within the "shift_StringIO()" function
in src/StringIO.c, which can be exploited to crash the service.

2) A boundary error exists within the "state_login_prompt()" function
in src/state_login.c, which potentially can be exploited to crash the
service by logging in as "guest" after a guest user was already
logged in.

Note: Additionally, some problems with the implementation of
"v*printf()" like functions, which could lead to a crash on certain
architectures (e.g. Debian GNU/Linux for PPC), have been corrected.

The vulnerabilities are reported in versions prior to 3.2.

SOLUTION:
Update to version 3.2.
http://www.ka.sara.nl/home/walter/bbs100/

PROVIDED AND/OR DISCOVERED BY:
1) Georbit
2) Reported by the vendor

ORIGINAL ADVISORY:
http://www.ka.sara.nl/home/walter//bbs100/ChangeLog.txt

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