Improper Check for Unusual or Exceptional Conditions Affecting python2-cryptography package, versions <2.9.2-150100.7.12.1


Severity

Recommended
low

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.08% (35th percentile)

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  • Snyk IDSNYK-SLES151-PYTHON2CRYPTOGRAPHY-3361755
  • published16 Mar 2023
  • disclosed15 Mar 2023

Introduced: 15 Mar 2023

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

How to fix?

Upgrade SLES:15.1 python2-cryptography to version 2.9.2-150100.7.12.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python2-cryptography package and not the python2-cryptography package as distributed by SLES. See How to fix? for SLES:15.1 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