CVE-2026-48959: PMQS IO::Uncompress::Unzip, отказ на услуга

Описание

Оригинално описание

IO::Uncompress::Unzip versions before 2.220 for Perl allow CPU exhaustion via per-byte read loop in fastForward. fastForward() compares length $offset (the digit count of the offset, 1 to 19) against the chunk size $c instead of $offset itself, so $c shrinks from 16 KiB to 1-19 bytes per iteration. Extracting a named entry from an attacker supplied zip via IO::Uncompress::Unzip->new($zip, Name => $target) drives a per-byte read loop scaling with the entry's compressed size, up to the non-Zip64 4 GiB cap.

Засегнати продукти

• PMQS IO::Uncompress::Unzip: преди 2.220

Вид слабост

• CWE-407 Неефективна алгоритмична сложност

История

Други уязвимости в PMQS IO::Uncompress::Unzip

• 5.5CVE-2025-15649

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-48959
• https://nvd.nist.gov/vuln/detail/CVE-2026-48959
• https://github.com/pmqs/IO-Compress/commit/68db44076f4c1a86a2ffe53a958eac6cabaf72e2.patch
• https://metacpan.org/release/PMQS/IO-Compress-2.220/changes
• http://www.openwall.com/lists/oss-security/2026/05/27/2