Описание
LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. From 1.6.26 to 1.6.53, there is an integer truncation in the libpng simplified write API functions png_write_image_16bit and png_write_image_8bit causes heap buffer over-read when the caller provides a negative row stride (for bottom-up image layouts) or a stride exceeding 65535 bytes. The bug was introduced in libpng 1.6.26 (October 2016) by casts added to silence compiler warnings on 16-bit systems. This vulnerability is fixed in 1.6.54.
A flaw was found in libpng, a reference library for PNG (Portable Network Graphics) raster image files. An integer truncation vulnerability exists in the png_write_image_16bit and png_write_image_8bit simplified write API functions. A local attacker could exploit this flaw by providing a negative row stride (for bottom-up image layouts) or a stride exceeding 65535 bytes, leading to a heap buffer over-read. This can result in information disclosure or a denial of service (DoS) to the system.
Отчет
This vulnerability is rated Moderate for Red Hat products. An integer truncation flaw in the libpng simplified write API functions (png_write_image_16bit, png_write_image_8bit) can lead to a heap buffer over-read. Exploitation requires an application to process specially crafted input that provides a negative row stride or a stride exceeding 65535 bytes, potentially resulting in denial of service or information disclosure.
Меры по смягчению последствий
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat build of OpenJDK 11 ELS | java-21-openjdk-portable | Not affected | ||
| Red Hat build of OpenJDK 17 | java-21-openjdk-portable | Not affected | ||
| Red Hat build of OpenJDK 21 | java-21-openjdk-portable-rhel7 | Not affected | ||
| Red Hat build of OpenJDK 25 | java-21-openjdk-vanilla | Not affected | ||
| Red Hat Enterprise Linux 10 | firefox | Not affected | ||
| Red Hat Enterprise Linux 10 | java-25-openjdk | Affected | ||
| Red Hat Enterprise Linux 10 | thunderbird | Not affected | ||
| Red Hat Enterprise Linux 6 | libpng | Will not fix | ||
| Red Hat Enterprise Linux 7 | firefox | Not affected | ||
| Red Hat Enterprise Linux 7 | libpng | Not affected |
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Дополнительная информация
Статус:
EPSS
6.6 Medium
CVSS3
Связанные уязвимости
LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. From 1.6.26 to 1.6.53, there is an integer truncation in the libpng simplified write API functions png_write_image_16bit and png_write_image_8bit causes heap buffer over-read when the caller provides a negative row stride (for bottom-up image layouts) or a stride exceeding 65535 bytes. The bug was introduced in libpng 1.6.26 (October 2016) by casts added to silence compiler warnings on 16-bit systems. This vulnerability is fixed in 1.6.54.
LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. From 1.6.26 to 1.6.53, there is an integer truncation in the libpng simplified write API functions png_write_image_16bit and png_write_image_8bit causes heap buffer over-read when the caller provides a negative row stride (for bottom-up image layouts) or a stride exceeding 65535 bytes. The bug was introduced in libpng 1.6.26 (October 2016) by casts added to silence compiler warnings on 16-bit systems. This vulnerability is fixed in 1.6.54.
LIBPNG has an integer truncation causing heap buffer over-read in png_image_write_*
LIBPNG is a reference library for use in applications that read, creat ...
EPSS
6.6 Medium
CVSS3