Upstream information
Description
The validateSignature method in the SAML2\Utils class in SimpleSAMLphp before 1.14.10 and simplesamlphp/saml2 library before 1.9.1, 1.10.x before 1.10.3, and 2.x before 2.3.3 allows remote attackers to spoof SAML responses or possibly cause a denial of service (memory consumption) by leveraging improper conversion of return values to boolean.SUSE information
Overall state of this security issue: Does not affect SUSE products
This issue is currently rated as having critical severity.
| CVSS detail | National Vulnerability Database | 
|---|---|
| Base Score | 8.5 | 
| Vector | AV:N/AC:L/Au:N/C:N/I:P/A:C | 
| Access Vector | Network | 
| Access Complexity | Low | 
| Authentication | None | 
| Confidentiality Impact | None | 
| Integrity Impact | Partial | 
| Availability Impact | Complete | 
| CVSS detail | National Vulnerability Database | 
|---|---|
| Base Score | 9.1 | 
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H | 
| Attack Vector | Network | 
| Attack Complexity | Low | 
| Privileges Required | None | 
| User Interaction | None | 
| Scope | Unchanged | 
| Confidentiality Impact | None | 
| Integrity Impact | High | 
| Availability Impact | High | 
| CVSSv3 Version | 3 | 
SUSE Timeline for this CVE
CVE page created: Mon Dec 5 05:58:19 2016CVE page last modified: Mon Oct 6 18:26:48 2025