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CVE-2021-3737BIT-LIBPYTHON-2021-3737BIT-PYTHON-2021-3737BIT-PYTHON-MIN-2021-3737PSF-2022-7

A flaw was found in python.

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 3.6.14, 3.7.11, 3.8.11, 3.9.6
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: yes
  • Technical impact: partial

Summary

A flaw was found in python. An improperly handled HTTP response in the HTTP client code of python may allow a remote attacker, who controls the HTTP server, to make the client script enter an infinite loop, consuming CPU time. The highest threat from this vulnerability is to system availability.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: yes · Technical impact: partial

  3. Record last updated
  4. EPSS reached 10%

    FIRST estimates at least a 10% chance of exploitation in the next 30 days

Affected versions

  • n/a python

    Fixed in python v3.6.14, python v3.7.11, python v3.8.11, python v3.9.6, python v3.10.0b2

  • libpythonBitnami

    From 3.6.0 · fixed in 3.6.14; From 3.7.0 · fixed in 3.7.11; From 3.8.0 · fixed in 3.8.11; From 3.9.0 · fixed in 3.9.6

  • pythonBitnami

    From 3.6.0 · fixed in 3.6.14; From 3.7.0 · fixed in 3.7.11; From 3.8.0 · fixed in 3.8.11; From 3.9.0 · fixed in 3.9.6

  • python-minBitnami

    From 3.6.0 · fixed in 3.6.14; From 3.7.0 · fixed in 3.7.11; From 3.8.0 · fixed in 3.8.11; From 3.9.0 · fixed in 3.9.6

References 10

bugs.python.org

GitHub · python/cpython

bugzilla.redhat.com

ubuntu.com

oracle.com

python-security.readthedocs.io

security.netapp.com

lists.debian.org