Amazon Linux 2023: CVE-2026-23876: Important priority package update for ImageMagick

A flaw was found in ImageMagick. A heap buffer overflow, a type of memory corruption, in the XBM image decoder (ReadXBMImage) allows a remote attacker to write controlled data beyond the allocated memory buffer when processing a maliciously crafted image file. This can lead to arbitrary code execution, information disclosure, or a denial of service. The vulnerability can be triggered by any operation that reads or identifies an image.