libpng png_rgb_to_gray() buffer overflow
|libpng-pngrgbtogray-bo (68538)||High Risk|
libpng is vulnerable to a buffer overflow, caused by improper bounds checking by the png_rgb_to_gray() function. By sending an overly long string, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause the application to crash.
Upgrade to the latest version of libpng (1.5.4, 1.4.8, 1.2.45 or 1.0.55 or later), available from the libpng Web site. See References.
- libpng Web Site: libpng is the official PNG reference library.
- Red Hat Bugzilla Bug 720607: CVE-2011-2690 libpng: buffer overwrite in png_rgb_to_gray.
- BID-48660: libpng Buffer Overflow and Denial of Service Vulnerabilities
- CVE-2011-2690: Buffer overflow in libpng 1.0.x before 1.0.55, 1.2.x before 1.2.45, 1.4.x before 1.4.8, and 1.5.x before 1.5.4, when used by an application that calls the png_rgb_to_gray function but not the png_set_expand function, allows remote attackers to overwrite memory with an arbitrary amount of data, and possibly have unspecified other impact, via a crafted PNG image.
- DSA-2287: libpng -- several vulnerabilities
- OSVDB ID: 73984: libpng png_rgb_to_gray Function PNG File Handling Overflow
- RHSA-2011-1104: Moderate: libpng security update
- RHSA-2011-1105: Moderate: libpng security update
- SA45046: libpng png_format_buffer() Denial of Service Vulnerability
- libpng libpng 1.0
- libpng libpng 1.2
- libpng libpng 1.4
- libpng libpng 1.5
- RedHat Enterprise Linux 5 Client Workstation
- RedHat Enterprise Linux 5 Client
- RedHat Enterprise Linux 5
- RedHat Enterprise Linux 6 Workstation
- RedHat Enterprise Linux 6 Server
- RedHat Enterprise Linux Desktop 6
- RedHat Enterprise Linux HPC Node 6
- RedHat Enterprise Linux Server EUS 6.1.z
Jul 13, 2011
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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.