CVE-2020-5390

2020-01-1300:00:00

ubuntu.com

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:L/Au:N/C:N/I:P/A:N

0.004 Low

EPSS

Percentile

74.1%

JSON

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.

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchpython-pysaml2< 4.0.2-0ubuntu3.1UNKNOWN
ubuntu19.04noarchpython-pysaml2< 4.5.0+dfsg1-0ubuntu2.19.04.1UNKNOWN
ubuntu19.10noarchpython-pysaml2< 4.5.0+dfsg1-0ubuntu2.19.10.1UNKNOWN
ubuntu16.04noarchpython-pysaml2< 3.0.0-3ubuntu1.16.04.4UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	18.04	noarch	python-pysaml2	< 4.0.2-0ubuntu3.1	UNKNOWN
ubuntu	19.04	noarch	python-pysaml2	< 4.5.0+dfsg1-0ubuntu2.19.04.1	UNKNOWN
ubuntu	19.10	noarch	python-pysaml2	< 4.5.0+dfsg1-0ubuntu2.19.10.1	UNKNOWN
ubuntu	16.04	noarch	python-pysaml2	< 3.0.0-3ubuntu1.16.04.4	UNKNOWN