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FreeBSD: VID-FB67567A-5D95-11EB-A955-08002728F74C (CVE-2021-21238): pysaml2 -- multiple vulnerabilities

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FreeBSD: VID-FB67567A-5D95-11EB-A955-08002728F74C (CVE-2021-21238): pysaml2 -- multiple vulnerabilities

Severity
4
CVSS
(AV:N/AC:M/Au:N/C:N/I:P/A:N)
Published
01/20/2021
Created
01/28/2021
Added
01/27/2021
Modified
03/08/2021

Description

PySAML2 is a pure python implementation of SAML Version 2 Standard. PySAML2 before 6.5.0 has an improper verification of cryptographic signature vulnerability. All users of pysaml2 that need to validate signed SAML documents are impacted. The vulnerability is a variant of XML Signature wrapping because it did not validate the SAML document against an XML schema. This allowed invalid XML documents to be processed and such a document can trick pysaml2 with a wrapped signature. This is fixed in PySAML2 6.5.0.

Solution(s)

  • freebsd-upgrade-package-py36-pysaml2
  • freebsd-upgrade-package-py37-pysaml2
  • freebsd-upgrade-package-py38-pysaml2
  • freebsd-upgrade-package-py39-pysaml2

References

  • CVE-2021-21238

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