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Asterisk JPEG Image Handling Buffer Overflow Vulnerability
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Secunia Advisory:
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SA19800
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Release Date:
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2006-04-24
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Popularity:
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7,631 views
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Critical:
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Moderately critical
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Impact:
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DoS
System access
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Where:
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From local network
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Solution Status:
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Vendor Patch
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| Software: | Asterisk 1.x
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| CVE reference: | CVE-2006-1827
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Description:
Emmanouel Kellinis has reported a vulnerability in Asterisk, which can be exploited by malicious people to cause a DoS (Denial of Service) and potentially to compromise a vulnerable system.
The vulnerability is cause due to a signedness error in "format_jpeg.c". This can be exploited to cause a buffer overflow via an overly large JPEG image and may allow arbitrary code execution.
The vulnerability has been reported in version 1.2.6. Prior versions may also be affected.
Solution:
Update to version 1.2.7 or later.
http://ftp.digium.com/pub/asterisk/
Provided and/or discovered by:
Emmanouel Kellinis
Original Advisory:
http://www.cipher.org.uk/index.php?p=..._Integer_Overflow_07-04-2006.advisory
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About this Secunia Advisory
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
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