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PYSEC-2011-22

Quick fix

PYSEC-2011-22 — plone: upgrade to the fixed version with the command below.

pip install --upgrade 'plone>=4.1.4'

Details

Plone 4.1.3 and earlier computes hash values for form parameters without restricting the ability to trigger hash collisions predictably, which allows remote attackers to cause a denial of service (CPU consumption) by sending many crafted parameters.

Are you affected?

Enter the version of the package you're using.

Affected packages

PyPI/plone

Introduced in: 0Fixed in: 4.1.4

Fixpip install --upgrade 'plone>=4.1.4'

References

http://www.nruns.com/_downloads/advisory28122011.pdf[ADVISORY]
http://www.kb.cert.org/vuls/id/903934[WEB]
http://www.ocert.org/advisories/ocert-2011-003.html[ADVISORY]
http://secunia.com/advisories/47406[ADVISORY]
http://archives.neohapsis.com/archives/bugtraq/2011-12/0181.html[WEB]
https://exchange.xforce.ibmcloud.com/vulnerabilities/72018[WEB]
https://github.com/advisories/GHSA-pcwm-8jc3-qxvj[ADVISORY]