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| Ultravox is "a streaming media technology developed by AOL for delivering and publishing streaming media such as music files. The Winamp media player has support for this protocol". Remote exploitation of a heap-based buffer overflow vulnerability in the Ultravox protocol handler of AOL Corp.'s Nullsoft Winamp media player could allow an attacker to execute arbitrary code in the context of the currently logged in user. |
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Credit:
The information has been provided by iDefense Labs Security Advisories.
The original article can be found at: http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=431
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Vulnerable Systems:
* Winamp version 5.24
* Winamp version 5.3
Immune Systems:
* Winamp version 5.31
Due to an error in the handling of the 'ultravox-max-msg' header, it is possible for a malicious server to cause the Winamp client to allocate a very small amount of space and then try fill it with a large amount of server supplied date, potentially overwriting values which will lead to code execution.
Analysis:
Successful exploitation of this vulnerability would allow a remote attacker to execute code in the context of the user who started Winamp. In order to exploit this vulnerability, the attacker would need to cause or convince the intended victim to connect to a malicious server. This could be accomplished by embedding a link in a web page to a playlist file, a 'shout:' URI or a 'uvox:' URI, which are automatically by Winamp from Internet Explorer. Alternatively, one of these items could be placed in a playlist file. The attacker would have no way to force the user to open the content they have supplied.
Disclosure Timeline:
10/19/2006 - Initial vendor notification
10/25/2006 - Initial vendor response
10/25/2006 - Coordinated public disclosure
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| Subject:
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winamp 5.3 |
Date: |
30 Oct. 2006 |
| From: |
nissen360earthlink.net |
| I have 5.3, but run under a hardware firewall, which makes it very much harder to access here. Will be changing to new version or another player shortly. |
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| Subject:
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winamp 5.25 |
Date: |
5 Nov. 2006 |
| From: |
zubietag |
| I have 5.3, but run under a hardware firewall, which makes it very much harder to access here. Will be changing to new version or another player shortly. |
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| Subject:
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WINAMP11 |
Date: |
15 Nov. 2006 |
| From: |
r.quaalmchsi.com |
| I have downloaded winamp11 but now everytime I try to open a folder {My Documents or My Pictures..etc}, winamp will open a file avi, mpg, mov, mp3.. instead and take over. What do I do. Virusscan claims no Virus and i deleted Winamp and went to the old version with no help, I am now at winamp 11 sitting thinking searching and waiting for an answer. Help me if you can. |
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