CVE-2013-7338: n/a vulnerability

CVE-2013-7338: Python before 3.3.4 RC1 allows remote attackers to cause a denial of service (infinite loop and CPU consump...

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.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 18:01 UTC (UTC+00:00)

Security readout for executives and security teams

A crafted ZIP file can make vulnerable Python ZIP-handling code loop indefinitely and consume CPU. The business risk is service slowdown or outage when applications accept and unpack untrusted ZIP archives. The source bundle does not show data theft, code execution, or confirmed active exploitation. Exposure is most likely in services, jobs, or user workflows that accept ZIP uploads or fetched ZIP files and process them using vulnerable Python zipfile APIs. Treat as a targeted availability risk. Patch internet-facing or customer-facing ZIP processing first, especially where one request can tie up worker capacity. Mitigation focus: Upgrade Python or vendor packages to versions containing the zipfile fix.; Prioritize systems that process ZIP files from users or external sources.; Check OS vendor advisories for backported fixes in packaged Python versions..

Prepared: Jun 14, 2026, 14:32 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Apr 22, 2014, 14:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

4Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
GLSA-201503-10CVE reference · vendor-advisory, x_refsource_GENTOO
https://support.apple.com/kb/HT205031CVE reference · x_refsource_CONFIRM
https://docs.python.org/3.3/whatsnew/changelog.htmlCVE reference · x_refsource_CONFIRM

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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