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The Secunia Software Inspector is a free service that detects insecure
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TITLE:
Windows Media Player ASX Playlist Buffer Overflow Vulnerability

SECUNIA ADVISORY ID:
SA22971

VERIFY ADVISORY:
http://secunia.com/advisories/22971/

CRITICAL:
Highly critical

IMPACT:
DoS, System access

WHERE:
>From remote

SOFTWARE:
Microsoft Windows Media Player 10.x
http://secunia.com/product/4208/

DESCRIPTION:
sehato has reported a vulnerability in Windows Media Player, which
can be exploited by malicious people to cause a DoS (Denial of
Service) or potentially compromise a user's system.

The vulnerability is caused due to a boundary error when handling
"REF HREF" tags in ASX playlists. This can be exploited to cause a
limited heap-based buffer overflow via an overly long string with an
invalid URL.

Successful exploitation crashes the program and may potentially allow
execution of arbitrary code, though this has not currently been
proven.

The vulnerability is reported in version 10.00.00.4036. Other
versions may also be affected.

SOLUTION:
Do not open untrusted playlists.

PROVIDED AND/OR DISCOVERED BY:
sehato

ORIGINAL ADVISORY:
Microsoft:
http://blogs.technet.com/msrc/archive/2006/12/07/public-proof-of-concept-code-for-asx-file-format-isssue.aspx

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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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