Improper Check for Unusual or Exceptional Conditions Affecting python39:3.9/python39-pyyaml package, versions <0:5.4.1-1.module_el8.6.0+3248+c431e88c


Severity

Recommended
0.0
medium
0
10

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.08% (35th percentile)

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  • Snyk IDSNYK-ALMALINUX8-PYTHON39-7169213
  • published30 May 2024
  • disclosed7 Nov 2023

Introduced: 7 Nov 2023

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

How to fix?

Upgrade AlmaLinux:8 python39:3.9/python39-pyyaml to version 0:5.4.1-1.module_el8.6.0+3248+c431e88c or higher.
This issue was patched in ALSA-2024:2985.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python39:3.9/python39-pyyaml package and not the python39:3.9/python39-pyyaml package as distributed by AlmaLinux. See How to fix? for AlmaLinux:8 relevant fixed versions and status.

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.

CVSS Scores

version 3.1