python-pysaml2: PySAML2 before 5.0.0 does not check that the signature in a SAML document is enveloped and thus signature wrapping is...
CVE-2020-5390 is fixed in 2 products on 1 platform, first by python-pysaml2 4.0.2-0ubuntu3.1, released January 13, 2020. It is not reported as exploited. Patch Radar priority: Routine.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| python-pysaml2 · Ubuntu 18.04.6 LTS (bionic) | 4.0.2-0ubuntu3.1 | python-pysaml2 4.0.2-0ubuntu3.1 | Jan 13, 2020 |
| python3-pysaml2 · Ubuntu 18.04.6 LTS (bionic) | 4.0.2-0ubuntu3.1 | python3-pysaml2 4.0.2-0ubuntu3.1 | Jan 13, 2020 |
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