CVE-2020-5390

Published: 13 January 2020

PySAML2 before 5.0.0 does not check that the signature in a SAML document is enveloped and thus signature wrapping is effective, i.e., it is affected by XML Signature Wrapping (XSW). The signature information and the node/object that is signed can be in different places and thus the signature verification will succeed, but the wrong data will be used. This specifically affects the verification of assertion that have been signed.

Priority

Medium

CVSS 3 base score: 7.5

Status

Package Release Status
python-pysaml2
Launchpad, Ubuntu, Debian
Upstream Needs triage

Ubuntu 20.04 LTS (Focal Fossa)
Released (4.9.0-0ubuntu2)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.0.2-0ubuntu3.1)
Ubuntu 16.04 LTS (Xenial Xerus)
Released (3.0.0-3ubuntu1.16.04.4)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

Ubuntu 12.04 ESM (Precise Pangolin) Does not exist