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TITLE:
NewsReactor Article Processing yEncode "name" Buffer Overflow

SECUNIA ADVISORY ID:
SA24487

VERIFY ADVISORY:
http://secunia.com/advisories/24487/

CRITICAL:
Highly critical

IMPACT:
System access

WHERE:
>From remote

SOFTWARE:
NewsReactor
http://secunia.com/product/13645/

DESCRIPTION:
Marsu Pilami has discovered a vulnerability in NewsReactor, which can
be exploited by malicious people to compromise a user's system.

The vulnerability is caused due to a boundary error when processing
articles downloaded from a news server. This can be exploited to
cause a stack-based buffer overflow via a specially crafted article
with an overly long (greater than 200 bytes) yEncode "name" keyword
posted to the news server.

Successful exploitation allows execution of arbitrary code.

The vulnerability is confirmed in build 20070220.21. Other versions
may also be affected.

SOLUTION:
Download articles from trusted news servers only.

PROVIDED AND/OR DISCOVERED BY:
Marsu Pilami

ORIGINAL ADVISORY:
http://www.milw0rm.com/exploits/3462
http://www.milw0rm.com/exploits/3463

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About:
This Advisory was delivered by Secunia as a free service to help
everybody keeping their systems up to date against the latest
vulnerabilities.

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http://secunia.com/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
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Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

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