CVE catalog
CVE-2018-7644
simplesamlphp: CVE-2018-7644
- Severity
- Medium
- Published
- Source
- [NVD] · [CVE record]
- EPSS
- 1.25% · Oct 25, 2026
The XmlSecLibs library as used in the saml2 library in SimpleSAMLphp before 1.15.3 incorrectly verifies signatures on SAML assertions, allowing a remote attacker to construct a crafted SAML assertion on behalf of an Identity Provider that would pass as cryptographically valid, thereby allowing them to impersonate a user from that Identity Provider, aka a key confusion issue.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | simplesamlphp | sid | 2.5.3.1-1 | fixed |
| Debian | simplesamlphp | forky | 2.5.3.1-1 | fixed |
| Debian | simplesamlphp | bookworm | 1.19.7-1+deb12u2 | fixed |
| Debian | simplesamlphp | bookworm-security | 1.19.7-1+deb12u1 | fixed |
| Ubuntu | simplesamlphp | pro | 1.13.2-1 | vulnerable |
| Ubuntu | simplesamlphp | pro | 1.14.0-1 | vulnerable |
| Ubuntu | simplesamlphp | pro | 1.14.0-1ubuntu2 | vulnerable |
| Ubuntu | simplesamlphp | pro | 1.14.0-1ubuntu2+esm1 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | simplesamlphp | source | sid | 1.15.3-1 | not yet assigned | Not reported | Not reported |
| Debian | simplesamlphp | source | forky | 1.15.3-1 | not yet assigned | Not reported | Not reported |
| Debian | simplesamlphp | source | bookworm | 1.15.3-1 | not yet assigned | Not reported | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [simplesamlphp]Fixed
Details (4)
1.19.7-1+deb12u2· all · bookwormFixed · Fixed:
1.15.3-1dsa · simplesamlphp · debian · bookworm; dsa · simplesamlphp · debian · 12
1.19.7-1+deb12u2· all · bookwormFixed · Fixed:
1.15.3-1dsa · simplesamlphp · debian · bookworm; dsa · simplesamlphp · debian · 12
1.19.7-1+deb12u1· all · bookworm-securityFixed · Fixed:
1.15.3-1dsa · simplesamlphp · debian · bookworm; dsa · simplesamlphp · debian · 12
1.19.7-1+deb12u1· all · bookworm-securityFixed · Fixed:
1.15.3-1dsa · simplesamlphp · debian · bookworm; dsa · simplesamlphp · debian · 12
Observed: