Описание
ImageMagick is vulnerable to an integer Overflow in TIM decoder leading to out of bounds read (32-bit only)
Summary
The TIM (PSX TIM) image parser in ImageMagick contains a critical integer overflow vulnerability in the ReadTIMImage function (coders/tim.c). The code reads width and height (16-bit values) from the file header and calculates image_size = 2 * width * height without checking for overflow.
On 32-bit systems (or where size_t is 32-bit), this calculation can overflow if width and height are large (e.g., 65535), wrapping around to a small value. This results in a small heap allocation via AcquireQuantumMemory and later operations relying on the dimensions can trigger an out of bounds read.
Vulnerable Code
File: coders/tim.c
Impact
This vulnerability can lead to Arbitrary Memory Disclosure due to an out of bounds read on 32-bit systems.
Пакеты
Magick.NET-Q16-AnyCPU
< 14.10.0
14.10.0
Magick.NET-Q16-HDRI-AnyCPU
< 14.10.0
14.10.0
Magick.NET-Q16-HDRI-x86
< 14.10.0
14.10.0
Magick.NET-Q16-x86
< 14.10.0
14.10.0
Magick.NET-Q8-AnyCPU
< 14.10.0
14.10.0
Magick.NET-Q8-x86
< 14.10.0
14.10.0
Связанные уязвимости
ImageMagick is a software suite to create, edit, compose, or convert bitmap images. In versions 7.1.2-9 and prior, the TIM (PSX TIM) image parser contains a critical integer overflow vulnerability in its ReadTIMImage function (coders/tim.c). The code reads width and height (16-bit values) from the file header and calculates image_size = 2 * width * height without checking for overflow. On 32-bit systems (or where size_t is 32-bit), this calculation can overflow if width and height are large (e.g., 65535), wrapping around to a small value. This results in a small heap allocation via AcquireQuantumMemory and later operations relying on the dimensions can trigger an out of bounds read. This issue is fixed in version 7.1.2-10.
ImageMagick is a software suite to create, edit, compose, or convert bitmap images. In versions 7.1.2-9 and prior, the TIM (PSX TIM) image parser contains a critical integer overflow vulnerability in its ReadTIMImage function (coders/tim.c). The code reads width and height (16-bit values) from the file header and calculates image_size = 2 * width * height without checking for overflow. On 32-bit systems (or where size_t is 32-bit), this calculation can overflow if width and height are large (e.g., 65535), wrapping around to a small value. This results in a small heap allocation via AcquireQuantumMemory and later operations relying on the dimensions can trigger an out of bounds read. This issue is fixed in version 7.1.2-10.
ImageMagick is a software suite to create, edit, compose, or convert b ...
