Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

CVE-2026-56288

Gravedad CVSS v4.0:
MEDIA
Tipo:
CWE-476 Desreferencia a puntero nulo (NULL)
Fecha de publicación:
09/07/2026
Última modificación:
09/07/2026

Descripción

*** Pendiente de traducción *** GNU patch is vulnerable to a NULL pointer dereference when processing a specially crafted unified-diff patch file. Improper handling of consecutive end-of-file newline markers can corrupt internal hunk (single block of changes in diff) data structures, causing the application to pass a NULL pointer to fwrite() during patch processing.<br /> An attacker can trigger this condition with a malicious patch file, causing the utility to crash and resulting in a denial of service.<br /> <br /> <br /> <br /> This issue has been fixed in the commit e6d6a4e021660679d7fc9150f981d4920f722313