FreeType Integer Overflows Let Remote Users Execute Arbitrary Code
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SecurityTracker Alert ID: 1016522
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SecurityTracker URL: http://securitytracker.com/id?1016522
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CVE Reference: CVE-2006-0747
, CVE-2006-1861
, CVE-2006-3467
(Links to External Site)
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OSVDB Reference: 25654
, 26032
(Links to External Site)
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Date: Jul 18 2006
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Impact: Execution of arbitrary code via network, User access via network
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Fix Available: Yes
Vendor Confirmed: Yes
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Version(s): 2.2 and prior versions
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Description: A vulnerability was reported in FreeType. A remote user can cause arbitrary code to be executed on the target user's system.
A remote user can create a specially crafted font file that, when loaded by the target user's system, will trigger an integer underflow
or integer overflow and crash the application or execute arbitrary code on the target system.
Chris Evans reported these vulnerabilities.
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Impact: A remote user can create a file that, when loaded by the target user, will execute arbitrary code on the target user's system.
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Solution: The vendor has issued a fixed version (2.2.1).
[Editor's note: It is not clear if CVE-2006-3467 is fixed in 2.2.1.]
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Vendor URL: www.freetype.org/ (Links to External Site)
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Cause: Boundary error
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Underlying OS: Linux (Any), UNIX (Any), Windows (Any)
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Message History:
This archive entry has one or more follow-up message(s) listed below.
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Source Message Contents
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Date: Tue, 18 Jul 2006 07:51:38 -0400
Subject: FreeType
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excerpt from Red Hat:
Chris Evans discovered several integer underflow and overflow flaws in the
FreeType font engine. If a user loads a carefully crafted font file with a
program linked against FreeType, it could cause the application to crash or
execute arbitrary code as the user. While it is uncommon for a user to
explicitly load a font file, there are several application file formats
which contain embedded fonts that are parsed by FreeType. (CVE-2006-0747,
CVE-2006-1861, CVE-2006-3467)
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