CVE-2026-59144: EGOR Data::RingBuffer::Shared, грешка в паметта

Описание

Оригинално описание

Data::RingBuffer::Shared versions before 0.04 for Perl allow a stack buffer overflow via an unvalidated elem_size in ring_read_seq. The attach-time validator ring_validate_header checks the capacity-overflow and total_size consistency of the header but never caps elem_size against the destination size. ring_read_seq does memcpy(out, ring_slot(h, seq), elem_size) with elem_size read raw from the mmap'd segment, copying into a fixed 8-byte destination scalar. An elem_size larger than 8 bytes writes past the destination. A local peer that can write the backing file can leave the header valid while setting a large elem_size, so the next read copies a file-controlled length into the fixed 8-byte stack buffer, corrupting adjacent stack frames.

Засегнати продукти

• EGOR Data::RingBuffer::Shared: преди 0.04

Вид слабост

• CWE-121 Препълване на буфера в стека

История

Други уязвимости в EGOR Data::RingBuffer::Shared

• 3.8CVE-2026-65066

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-59144
• https://nvd.nist.gov/vuln/detail/CVE-2026-59144
• https://metacpan.org/release/EGOR/Data-RingBuffer-Shared-0.04/diff/EGOR/Data-RingBuffer-Shared-0.03#ring.h
• https://metacpan.org/release/EGOR/Data-RingBuffer-Shared-0.04/changes