CVE-2011-1156: feedparser denial of service vulnerability

CVE-2011-1156 · Severity: low · CVSS 3.1 · Published 2011-04-11

feedparser.py in Universal Feed Parser (aka feedparser or python-feedparser) before 5.0.1 allows remote attackers to cause a denial of service (application crash) via a malformed DOCTYPE declaration.

Technologies: feedparser (PyPI). Vendors: PyPI.

Quick answers

Is CVE-2011-1156 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2011-1156 being exploited in the wild.
How severe is CVE-2011-1156?
Low severity, with a CVSS score of 3.1, published 11 April 2011.
Which products and versions are affected?
feedparser (PyPI) ECOSYSTEM:introduced=0,fixed=5.0.1, ECOSYSTEM:introduced=4.1,fixed=5.0.1.
Is there a fix for CVE-2011-1156?
Yes. feedparser (PyPI): upgrade to 5.0.1 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2011-1156?
Check whether you run feedparser (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • feedparser (PyPI): upgrade to 5.0.1 or later
    pip install "feedparser>=5.0.1"

Affected products

  • feedparser (PyPI) ECOSYSTEM:introduced=0,fixed=5.0.1, ECOSYSTEM:introduced=4.1,fixed=5.0.1

Identifiers

  • CVE-2011-1156
  • GHSA-6h52-4vmh-8x4f
  • PYSEC-2011-19

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