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...
Original description
The description as published by the source.
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.
Source: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV
Fix status by distribution
Fixed packages published by each distribution for this CVE
- Debian DEBIAN-CVE-2020-5390 python-pysaml2 Fixed in: 4.5.0-7
References
- advisory github.com
- advisory github.com
- advisory lists.debian.org
- advisory usn.ubuntu.com
- advisory debian.org
- package pypi.org
- patch github.com
- patch github.com