CVE-2010-2249

Memory leak in pngrutil.c in libpng before 1.2.44, and 1.4.x before 1.4.3, allows remote attackers to cause a denial of service (memory consumption and application crash) via a PNG image containing malformed Physical Scale (aka sCAL) chunks.

Weakness

The product does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory.

Affected Software

Name	Vendor	Start Version	End Version
Libpng	Libpng	*	1.2.44 (excluding)
Libpng	Libpng	1.4.0 (including)	1.4.3 (excluding)
Red Hat Enterprise Linux 3	RedHat	libpng-2:1.2.2-30	*
Red Hat Enterprise Linux 3	RedHat	libpng10-0:1.0.13-21	*
Red Hat Enterprise Linux 4	RedHat	libpng-2:1.2.7-3.el4_8.3	*
Red Hat Enterprise Linux 4	RedHat	libpng10-0:1.0.16-3.el4_8.4	*
Red Hat Enterprise Linux 5	RedHat	libpng-2:1.2.10-7.1.el5_5.3	*
Chromium-browser	Ubuntu	devel	*
Chromium-browser	Ubuntu	lucid	*
Chromium-browser	Ubuntu	maverick	*
Firefox	Ubuntu	dapper	*
Firefox	Ubuntu	devel	*
Firefox	Ubuntu	hardy	*
Firefox	Ubuntu	lucid	*
Firefox	Ubuntu	maverick	*
Libpng	Ubuntu	dapper	*
Libpng	Ubuntu	hardy	*
Libpng	Ubuntu	jaunty	*
Libpng	Ubuntu	karmic	*
Libpng	Ubuntu	lucid	*
Libpng	Ubuntu	upstream	*

Potential Mitigations

Choose a language or tool that provides automatic memory management, or makes manual memory management less error-prone.
For example, glibc in Linux provides protection against free of invalid pointers.
When using Xcode to target OS X or iOS, enable automatic reference counting (ARC) [REF-391].
To help correctly and consistently manage memory when programming in C++, consider using a smart pointer class such as std::auto_ptr (defined by ISO/IEC ISO/IEC 14882:2003), std::shared_ptr and std::unique_ptr (specified by an upcoming revision of the C++ standard, informally referred to as C++ 1x), or equivalent solutions such as Boost.

NVD	https://nvd.nist.gov/vuln/detail/CVE-2010-2249
CWE	https://cwe.mitre.org/data/definitions/401.html

Missing Release of Memory after Effective Lifetime

Weakness

Affected Software

Potential Mitigations

References