DEBIAN-CVE-2025-27773

The SimpleSAMLphp SAML2 library is a PHP library for SAML2 related functionality. Prior to versions 4.17.0 and 5.0.0-alpha.20, there is a signature confusion attack in the HTTPRedirect binding. An attacker with any signed SAMLResponse via the HTTP-Redirect binding can cause the application to accept an unsigned message. Versions 4.17.0 and 5.0.0-alpha.20 contain a fix for the issue.

References

https://security-tracker.debian.org/tracker/CVE-2025-27773

Affected packages

Debian:12 / simplesamlphp

Package

Name: simplesamlphp
Purl: pkg:deb/debian/simplesamlphp?arch=source&distro=bookworm

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

1.19.7-1+deb12u2

Affected versions

1.*

1.19.7-1

1.19.7-1+deb12u1

Ecosystem specific

{
    "urgency":  "not yet assigned"
}

Database specific

source

"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2025-27773.json"

Debian:14 / simplesamlphp

Package

Name: simplesamlphp
Purl: pkg:deb/debian/simplesamlphp?arch=source&distro=forky

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

1.19.7-2

Affected versions

1.*

1.6.0-1

1.6.1-1

1.6.2-1

1.6.3-1

1.6.3-2

1.6.3-3

1.7.0-1

1.7.0-2

1.8.0-1

1.8.1-1

1.8.2-1

1.9.0~rc1-1

1.9.0~rc2-1

1.9.0-1

1.9.1-1

1.9.2-1

1.10.0-1

1.11.0-1

1.12.0~rc1-1

1.12.0~rc2-1

1.12.0-1

1.13.0-1

1.13.1-1

1.13.1-2

1.13.2-1

1.14.0-1

1.14.1-1

1.14.2-1

1.14.2-2

1.14.3-1

1.14.4-1

1.14.5-1

1.14.6-1

1.14.7-1

1.14.8-1

1.14.9-1

1.14.10-1

1.14.11-1

1.14.15-1

1.15.0-1

1.15.1-1

1.15.2-1

1.15.3-1

1.15.4-1

1.16.0-1

1.16.1-1

1.16.2-1

1.16.3-1

1.17.0-1

1.17.1-1

1.17.2-1

1.17.2-2

1.17.3-1

1.17.4-1

1.17.5-1

1.17.6-1

1.17.6-2

1.18.1-1

1.18.4-1

1.18.5-1

1.18.6-1

1.18.7-1

1.18.8-1

1.19.0-1

1.19.1-1

1.19.1-1.1

1.19.6-1

1.19.7-1

Ecosystem specific

{
    "urgency":  "not yet assigned"
}

Database specific

source

"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2025-27773.json"