CVE-2016-9955
MEDIUM6.3EPSS 0.41%Incorrect signature verification in SimpleSAMLphp
Published: 1/24/2020Modified: 4/28/2026
Description
The SimpleSAML_XML_Validator class constructor in SimpleSAMLphp before 1.14.11 might allow remote attackers to spoof signatures on SAML 1 responses or possibly cause a denial of service (memory consumption) by leveraging improper conversion of return values to boolean.
Affected packages (2)
- Debian/simplesamlphpfrom 0, < 1.14.11-1
- Packagist/simplesamlphp/simplesamlphpfrom 0, < 1.14.11
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.3 | CVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:H |
References (7)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2016-9955
- ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2016-9955
- WEBhttps://github.com/FriendsOfPHP/security-advisories/blob/master/simplesamlphp/simplesamlphp/CVE-2016-9955.yaml
- WEBhttps://github.com/simplesamlphp/simplesamlphp/security/advisories/GHSA-p9cm-r7jg-8q3g
- WEBhttps://lists.debian.org/debian-lts-announce/2018/03/msg00001.html
- WEBhttps://simplesamlphp.org/security/201612-02
- WEBhttp://www.securityfocus.com/bid/94946