CVE-2026-59139: EGOR Data::ReqRep::Shared, грешка в паметта

Описание

Оригинално описание

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. 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'd segment and never bounded against the arena capacity (req_arena_cap). A local peer that can write the backing file can leave the header valid while poisoning a request slot'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.

Засегнати продукти

• EGOR Data::ReqRep::Shared: преди 0.05

Вид слабост

• CWE-125 Четене извън границите на буфера

История

Други уязвимости в EGOR Data::ReqRep::Shared

• 3.8CVE-2026-65061

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-59139
• https://nvd.nist.gov/vuln/detail/CVE-2026-59139
• https://metacpan.org/release/EGOR/Data-ReqRep-Shared-0.05/diff/EGOR/Data-ReqRep-Shared-0.04#reqrep.h
• https://metacpan.org/release/EGOR/Data-ReqRep-Shared-0.05/changes