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CVE-2026-9669 bz2.BZ2Decompressor objects could be reused after a decompression error

Description

bz2.BZ2Decompressor objects could be reused after a decompression error. If an application caught the resulting OSError and retried with the same decompressor, crafted input could cause the decompressor to resume from an invalid internal state and perform out-of-bounds writes to a stack buffer. This could crash the process when processing untrusted data.

Produits et versions touchés

Produit Versions touchées Corrigé en
CPython 3.15 3.15.0a1 → < 3.15.0b3 3.15.0b3
CPython 3.14 3.14.0 → < 3.14.6 3.14.6
CPython 3.13 3.13.0 → < 3.13.14 3.13.14
CPython 3.12 3.12.0 → < 3.12.14 3.12.14
CPython 3.11 3.11.0 → < 3.11.16 3.11.16
CPython 3.10 premières → < 3.10.21 3.10.21

Références

Chronologie

  1. Publiée
  2. Dernière modification

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