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Improper Check for Unusual or Exceptional Conditions The advisory has been revoked - it doesn't affect any version of package python3-cryptography  (opens in a new tab)

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EPSS
1.3% (67th percentile)

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  • Snyk IDSNYK-RHEL9-PYTHON3CRYPTOGRAPHY-9511178
  • published24 Mar 2025
  • disclosed8 Feb 2023
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Introduced: 8 Feb 2023

CVE-2023-23931  (opens in a new tab)
CWE-754  (opens in a new tab)

Amendment

The Red Hat security team deemed this advisory irrelevant for RHEL:9.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python3-cryptography package and not the python3-cryptography package as distributed by RHEL.

cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. In affected versions Cipher.update_into would accept Python objects which implement the buffer protocol, but provide only immutable buffers. This would allow immutable objects (such as bytes) to be mutated, thus violating fundamental rules of Python and resulting in corrupted output. This now correctly raises an exception. This issue has been present since update_into was originally introduced in cryptography 1.8.