From: Secunia Security Advisories (sec-advsecunia.com)
Date: Mon Aug 23 2010 - 14:17:56 CDT

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TITLE:
Mono libgdiplus Image Processing Integer Overflow Vulnerabilities

SECUNIA ADVISORY ID:
SA40792

VERIFY ADVISORY:
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http://secunia.com/advisories/40792/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=40792

RELEASE DATE:
2010-08-23

DISCUSS ADVISORY:
http://secunia.com/advisories/40792/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
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http://secunia.com/advisories/40792/

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https://ca.secunia.com/?page=viewadvisory&vuln_id=40792

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http://secunia.com/vulnerability_scanning/personal/
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DESCRIPTION:
Secunia Research has discovered some vulnerabilities in libgdiplus
for Mono, which can be exploited by malicious people to compromise an
application using the library.

1) An integer overflow error within the "gdip_load_tiff_image()"
function in src/tiffcodec.c can be exploited to cause a heap-based
buffer overflow by e.g. processing specially crafted TIFF images in
an application using the library.

2) An integer overflow error within the
"gdip_load_jpeg_image_internal()" function in src/jpegcodec.c can be
exploited to cause a heap-based buffer overflow by e.g. processing
specially crafted JPEG images in an application using the library.

3) An integer overflow error within the "gdip_read_bmp_image()"
function in src/bmpcodec.c can be exploited to cause a heap-based
buffer overflow by e.g. processing specially crafted BMP images in an
application using the library.

The vulnerabilities are confirmed in version 2.6.7. Other versions
may also be affected.

SOLUTION:
Do not process untrusted images in an application using the library.

PROVIDED AND/OR DISCOVERED BY:
Stefan Cornelius, Secunia Research.

ORIGINAL ADVISORY:
Secunia Research:
http://secunia.com/secunia_research/2010-102/

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

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