CVE-2026-59145: EGOR Data::Intern::Shared, грешка в паметта

Описание

Оригинално описание

Data::Intern::Shared versions before 0.02 for Perl allow an out-of-bounds read via unvalidated slot, reverse and arena indices in si_idx_find. The attach-time validator si_validate_header is thorough about the header and layout (magic, version, section offsets, total_size, count and arena_used) but does not validate the three arrays it then trusts. Every lookup in si_idx_find walks a triple indirection read straight from the mmap'd segment, arena[reverse[slots[i].id]], with no bound on slots[i].id against count, on the reverse[id] arena offset against arena_used, or on the arena record's length prefix. A local peer that can write the backing file can leave the header valid while poisoning a slot id, a reverse offset or an arena length prefix, so an id_of, intern or string lookup dereferences the chain out of bounds; because string() returns a file-controlled length of bytes from the arena, adjacent process memory can be disclosed.

Засегнати продукти

• EGOR Data::Intern::Shared: преди 0.02

Вид слабост

• CWE-125 Четене извън границите на буфера

История

Други уязвимости в EGOR Data::Intern::Shared

• 3.8CVE-2026-65067

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-59145
• https://nvd.nist.gov/vuln/detail/CVE-2026-59145
• https://metacpan.org/release/EGOR/Data-Intern-Shared-0.02/diff/EGOR/Data-Intern-Shared-0.01#intern.h
• https://metacpan.org/release/EGOR/Data-Intern-Shared-0.02/changes