Debian Security Bug TrackerDEBIANCVE:CVE-2021-21238CVE-2021-21238
6.5 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
4.3 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:N/I:P/A:N
0.001 Low
EPSS
Percentile
42.9%
PySAML2 is a pure python implementation of SAML Version 2 Standard. PySAML2 before 6.5.0 has an improper verification of cryptographic signature vulnerability. All users of pysaml2 that need to validate signed SAML documents are impacted. The vulnerability is a variant of XML Signature wrapping because it did not validate the SAML document against an XML schema. This allowed invalid XML documents to be processed and such a document can trick pysaml2 with a wrapped signature. This is fixed in PySAML2 6.5.0.
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| Debian | 12 | all | python-pysaml2 | < 6.5.1-1 | python-pysaml2_6.5.1-1_all.deb |
| Debian | 11 | all | python-pysaml2 | < 6.5.1-1 | python-pysaml2_6.5.1-1_all.deb |
| Debian | 10 | all | python-pysaml2 | <= 4.5.0-4+deb10u1 | python-pysaml2_4.5.0-4+deb10u1_all.deb |
| Debian | 999 | all | python-pysaml2 | < 6.5.1-1 | python-pysaml2_6.5.1-1_all.deb |
| Debian | 13 | all | python-pysaml2 | < 6.5.1-1 | python-pysaml2_6.5.1-1_all.deb |
Related
6.5 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
4.3 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:N/I:P/A:N
0.001 Low
EPSS
Percentile
42.9%