CVE-2026-66757 – Gimp: signed integer overflow in file-sgi (sgi-lib) causes the plugin to crash on rle sgi images

CVE ID :CVE-2026-66757

Published : 27. Juli 2026 19:17 | 38 Minuten ago

Description :A flaw was found in the file-sgi plugin in GIMP. When processing an RLE-compressed SGI image, the plugin allocates memory for a row table. The image header dimensions (ysize and zsize) are read as 16-bit unsigned integers. If a crafted file sets both dimensions to their maximum value (65535), the multiplication ysize * zsize overflows the standard 32-bit int boundary before being passed to calloc. This integer overflow issue results in undefined behavior, aborting the plugin and causing a denial of service.

Severity: 5.5 | MEDIUM

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