CVE-2013-7338

python: malformed ZIP files could cause 100% CPU usage

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Severity

Moderate

Red Hat Product Security

4.3

CVSS 2.0

Review impact separately from score.

Published · December 27, 2013

Updated · November 21, 2025

Description

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.

Statement

This issue did not affect the versions of python as shipped with Red Hat Enterprise Linux 5, 6 and 7.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 2.0 · 4.3
AV:N/AC:M/Au:N/C:N/I:N/A:P

CWE not specified