id: PYSEC-2020-94
details: 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.
affected:
- package:
    name: pysaml2
    ecosystem: PyPI
    purl: pkg:pypi/pysaml2
  ranges:
  - type: GIT
    repo: https://github.com/IdentityPython/pysaml2
    events:
    - introduced: '0'
    - fixed: f27c7e7a7010f83380566a219fd6a290a00f2b6e
    - fixed: 5e9d5acbcd8ae45c4e736ac521fd2df5b1c62e25
  - type: ECOSYSTEM
    events:
    - introduced: '0'
    - fixed: 5.0.0
  versions:
  - 0.4.3
  - 1.0.1
  - 1.0.2
  - 1.0.3
  - 1.1.0
  - 2.0.0
  - 2.1.0
  - 2.2.0
  - 2.3.0
  - 2.4.0
  - 3.0.0
  - 3.0.2
  - 4.0.0
  - 4.0.1
  - 4.0.2
  - 4.0.3
  - 4.0.4
  - 4.0.5rc1
  - 4.0.5
  - 4.1.0
  - 4.2.0
  - 4.3.0
  - 4.4.0
  - 4.5.0
  - 4.6.0
  - 4.6.1
  - 4.6.2
  - 4.6.3
  - 4.6.4
  - 4.6.5
  - 4.7.0
  - 4.8.0
  - 4.9.0
references:
- type: WEB
  url: https://github.com/IdentityPython/pysaml2/releases/tag/v5.0.0
- type: FIX
  url: https://github.com/IdentityPython/pysaml2/commit/f27c7e7a7010f83380566a219fd6a290a00f2b6e
- type: PACKAGE
  url: https://pypi.org/project/pysaml2/5.0.0/
- type: FIX
  url: https://github.com/IdentityPython/pysaml2/commit/5e9d5acbcd8ae45c4e736ac521fd2df5b1c62e25
- type: WEB
  url: https://github.com/IdentityPython/pysaml2/releases
- type: WEB
  url: https://usn.ubuntu.com/4245-1/
- type: ADVISORY
  url: https://www.debian.org/security/2020/dsa-4630
- type: WEB
  url: https://lists.debian.org/debian-lts-announce/2020/02/msg00025.html
- type: ADVISORY
  url: https://github.com/advisories/GHSA-qf7v-8hj3-4xw7
aliases:
- CVE-2020-5390
- GHSA-qf7v-8hj3-4xw7
modified: '2020-01-27T18:15:00Z'
published: '2020-01-13T19:15:00Z'