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Secunia Research 24/05/2010
- Ziproxy Two Integer Overflow Vulnerabilities -
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Table of Contents
Affected Software....................................................1
Severity.............................................................2
Vendor's Description of Software.....................................3
Description of Vulnerability.........................................4
Solution.............................................................5
Time Table...........................................................6
Credits..............................................................7
References...........................................................8
About Secunia........................................................9
Verification........................................................10
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1) Affected Software
* Ziproxy 3.0.0
NOTE: Other versions may also be affected.
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2) Severity
Rating: Highly critical
Impact: System access
Where: Remote
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3) Vendor's Description of Software
"Ziproxy is forwarding, non-caching, compressing HTTP proxy server.
Basically it squeezes images by converting them to lower quality JPEGs
or JPEG 2000 and compresses (gzip) HTML and other text-like data.".
Product Link:
http://ziproxy.sourceforge.net/
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4) Description of Vulnerability
Secunia Research has discovered two vulnerabilities in Ziproxy, which
can be exploited by malicious people to compromise a vulnerable
system.
1) An integer overflow within the "jpg2bitmap()" function in
src/image.c can be exploited to cause a heap-based buffer overflow via
specially crafted JPG images.
2) An integer overflow within the "png2bitmap()" function in
src/image.c can be exploited to cause a heap-based buffer overflow via
specially crafted PNG images.
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5) Solution
Update to version 3.0.1.
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6) Time Table
19/05/2010 - Vendor notified.
19/05/2010 - Vendor response.
20/05/2010 - Vendor issues fixed version.
24/05/2010 - Public disclosure.
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7) Credits
Discovered by Stefan Cornelius, Secunia Research.
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8) References
The Common Vulnerabilities and Exposures (CVE) project has assigned
CVE-2010-1513 for the vulnerabilities.
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9) About Secunia
Secunia offers vulnerability management solutions to corporate
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relevant to their specific system configuration:
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Secunia also provides a publicly accessible and comprehensive advisory
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Secunia believes that it is important to support the community and to
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10) Verification
Please verify this advisory by visiting the Secunia website:
http://secunia.com/secunia_research/2010-75/
Complete list of vulnerability reports published by Secunia Research:
http://secunia.com/secunia_research/
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