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GD Graphics Library GIF File Handling Denial of Service
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Secunia Advisory:
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SA20500
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Release Date:
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2006-06-07
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Last Update:
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2006-06-13
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Popularity:
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8,003 views
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Critical:
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Less critical
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Impact:
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DoS
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Where:
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From remote
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Solution Status:
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Unpatched
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| Software: | GD Graphics Library 2.x
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| CVE reference: | CVE-2006-2906
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Description:
Xavier Roche has discovered a vulnerability in the GD Graphics Library, which potentially can be exploited by malicious people to cause a DoS (Denial of Service) against applications and services using libgd.
The vulnerability is caused due to an infinite loop error within the handling of GIF images. This can be exploited to consume a large amount of CPU resources when the "gdImageCreateFromGifPtr()" function is used with a specially crafted GIF image.
The vulnerability has been confirmed in version 2.0.33. Other versions may also be affected.
Solution:
Restrict use to GIF images from trusted sources only.
Provided and/or discovered by:
Xavier Roche
Changelog:
2006-06-13: Added CVE reference.
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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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