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CVE-2026-48959 IO::Uncompress::Unzip versions before 2.220 for Perl allow CPU exhaustion via per-byte read loop in fastForward
Description
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.
Produits et versions touchés
| Produit | Versions touchées | Corrigé en |
|---|---|---|
| IO::Uncompress::Unzip 2.220 | premières → < 2.220 | 2.220 |
Références
- github.com github.com
- metacpan.org metacpan.org
Chronologie
- Publiée
- Dernière modification