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Secunia Security Advisory 20940

Secunia Security Advisory 20940
Posted Jul 14, 2006
Authored by Secunia | Site secunia.com

Secunia Security Advisory - A vulnerability has been reported in LibVNCServer, which can be exploited by malicious people to bypass certain security restrictions.

tags | advisory
SHA-256 | 5d5669d215411df7091455c2cb448ba70bface1e4a7ec38b8925863f44a8c5e1

Secunia Security Advisory 20940

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Hardcore Disassembler / Reverse Engineer Wanted!

Want to work with IDA and BinDiff?
Want to write PoC's and Exploits?

Your nationality is not important.
We will get you a work permit, find an apartment, and offer a
relocation compensation package.

http://secunia.com/hardcore_disassembler_and_reverse_engineer/

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TITLE:
LibVNCServer Authentication Bypass Vulnerability

SECUNIA ADVISORY ID:
SA20940

VERIFY ADVISORY:
http://secunia.com/advisories/20940/

CRITICAL:
Highly critical

IMPACT:
Security Bypass

WHERE:
>From remote

SOFTWARE:
LibVNCServer 0.x
http://secunia.com/product/10909/

DESCRIPTION:
A vulnerability has been reported in LibVNCServer, which can be
exploited by malicious people to bypass certain security
restrictions.

The vulnerability is caused due to an error within the handling of
VNC authentication requests. This can be exploited to bypass
authentication and may allow access to the functionality of an
application using the vulnerable library.

SOLUTION:
The vulnerability has been fixed in the CVS repository.

PROVIDED AND/OR DISCOVERED BY:
Ludwig Nussel

ORIGINAL ADVISORY:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=376824

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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.

Subscribe:
http://secunia.com/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
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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