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A new version (0.9.0.0 - Release Candidate 1) of the free Secunia PSI
has been released. The new version includes many new and advanced
features, which makes it even easier to stay patched.

Download and test it today:
https://psi.secunia.com/

Read more about this new version:
https://psi.secunia.com/?page=changelog

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TITLE:
activePDF Server Packet Handling Buffer Overflow Vulnerability

SECUNIA ADVISORY ID:
SA27371

VERIFY ADVISORY:
http://secunia.com/advisories/27371/

CRITICAL:
Moderately critical

IMPACT:
System access

WHERE:
>From local network

SOFTWARE:
activePDF Server 3.8.x
http://secunia.com/product/16284/

DESCRIPTION:
Secunia Research has discovered a vulnerability in activePDF Server,
which can be exploited by malicious people to compromise a vulnerable
system.

The vulnerability is caused due to a boundary error in the activePDF
Server service (APServer.exe) when receiving client data. This can be
exploited to cause a heap-based buffer overflow by connecting to the
service (port 53535/TCP by default) and sending a packet specifying a
smaller size than the actual size of the following data.

Successful exploitation may allow execution of arbitrary code.

The vulnerability is confirmed in versions 3.8.4 and 3.8.5.14. Other
versions may also be affected.

SOLUTION:
Update to version 3.8.6.16 or later.

PROVIDED AND/OR DISCOVERED BY:
Carsten Eiram, Secunia Research.

ORIGINAL ADVISORY:
Secunia Research:
http://secunia.com/secunia_research/2007-87/

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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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Please Note:
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