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

CVE-2026-59139

Gravedad:
Pendiente de análisis
Tipo:
CWE-125 Lectura fuera de límites
Fecha de publicación:
21/07/2026
Última modificación:
21/07/2026

Descripción

*** Pendiente de traducción *** Data::ReqRep::Shared versions before 0.05 for Perl allow an out-of-bounds read via an unvalidated arena offset and length in reqrep_recv_locked.<br /> <br /> The attach-time validator reqrep_validate_header checks the header scalars and region layout against the file size, but does not validate the array contents it then trusts. reqrep_recv_locked does memcpy(copy_buf, req_arena + arena_off, len) with arena_off and len read raw from the mmap&amp;#39;d segment and never bounded against the arena capacity (req_arena_cap).<br /> <br /> A local peer that can write the backing file can leave the header valid while poisoning a request slot&amp;#39;s offset and length, so receiving the request copies a file-controlled offset and length out of the arena, reading adjacent memory or crashing the process.

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