Race Condition Affecting python3.5 package, versions <3.5.2-2ubuntu0~16.04.13+esm11


Severity

Recommended
0.0
medium
0
10

Based on Ubuntu security rating

    Threat Intelligence

    EPSS
    0.14% (51st percentile)

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  • Snyk ID SNYK-UBUNTU1604-PYTHON35-5854086
  • published 24 Aug 2023
  • disclosed 22 Aug 2023

How to fix?

Upgrade Ubuntu:16.04 python3.5 to version 3.5.2-2ubuntu0~16.04.13+esm11 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python3.5 package and not the python3.5 package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

An issue was discovered in compare_digest in Lib/hmac.py in Python through 3.9.1. Constant-time-defeating optimisations were possible in the accumulator variable in hmac.compare_digest.

CVSS Scores

version 3.1
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NVD

5.9 medium
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    High
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    None
  • Availability (A)
    None
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SUSE

5.9 medium
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Red Hat

5.9 medium