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TITLE:
GD Graphics Library "gdImageStringFTEx()" Denial of Service

SECUNIA ADVISORY ID:
SA23916

VERIFY ADVISORY:
http://secunia.com/advisories/23916/

CRITICAL:
Less critical

IMPACT:
DoS

WHERE:
>From remote

SOFTWARE:
GD Graphics Library 2.x
http://secunia.com/product/4178/

DESCRIPTION:
Kees Cook has reported a vulnerability in GD Graphics Library, which
can be exploited by malicious people to cause a DoS (Denial of
Service).

The vulnerability is caused due to an error within the
"gdImageStringFTEx()" function in gdft.c, which can be exploited to
increment the terminating NULL of a string, potentially resulting in
a buffer overflow.

Successful exploitation requires that a JIS-encoded font is used.

SOLUTION:
Do not use JIS-encoded fonts with an application using GD Graphics
Library.

PROVIDED AND/OR DISCOVERED BY:
Kees Cook

ORIGINAL ADVISORY:
http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=224607

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About:
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