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Servers and applications

CVE-2013-7338

Python before 3.3.4 RC1 allows remote attackers to cause a denial of service (infinite loop and CPU consumption) via a file size value larger than the size of the zip file to the (1) ZipExtFile.read, (2) ZipExtFile.read(n), (3) ZipExtFile.readlines, (4) ZipFile.extract, or (5) ZipFile.extractall function.

Severity
High 7.1
Published
22 Apr 2014
Last changed
17 Jun 2026
Added to UpHeron
21 Oct 2026
Sources
NVD

Affected software

SoftwareAffected versions
PythonServers and applications · cpe:a:python:python
  • Version 3.3.3
  • Version 3.3.3-rc2
  • Version 3.3.3-rc1
  • Version 3.3.2
All 16 release lines
  • Version 3.3.0-alpha1
  • Version 3.3.0-alpha2
  • Version 3.3.0-alpha3
  • Version 3.3.0-alpha4
  • Version 3.3.0-beta1
  • Version 3.3.0-beta2
  • Version 3.3.0-rc1
  • Version 3.3.0-rc2
  • Version 3.3.0-rc3
  • Version 3.3.0
  • Version 3.3.1-rc1
  • Version 3.3.1
  • Version 3.3.2
  • Version 3.3.3-rc1
  • Version 3.3.3-rc2
  • Version 3.3.3

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2013-7338
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2013-7338