p PatchFirst

CVE-2023-49087

CVE-2023-49087 · Validation of SignedInfo

This page contains facts from public vulnerability sources. Check the original advisory before updating.

xml-security is a library that implements XML signatures and encryption. Validation of an XML signature requires verification that the hash value of the related XML-document matches a specific DigestValue-value, but also that the cryptographic signature on the SignedInfo-tree (the one that contains the DigestValue) verifies and matches a trusted public key. If an attacker somehow (i.e. by exploiting a bug in PHP's canonicalization function) manages to manipulate the canonicalized version's DigestValue, it would be possible to forge the signature. This issue has been patched in version 1.6.12 and 5.0.0-alpha.13.

CVSS 6.8 · Medium · EPSS 0.2% · Fix available

Published
Updated

Stack: php

Affected products and versions

  • xml-security

    Versions
    • = 1.6.11: Affected
    • = 5.0.0-alpha.12: Affected

    No fix published

  • simplesamlphp/xml-security Packagist

    Versions
    • 1.6.11
    • v1.6.11
    Affected ranges
    • ECOSYSTEM: ≥ 1.6.11, < 1.6.12

    Update to 1.6.12

  • simplesamlphp/saml2 Packagist

    Versions
    • 5.0.0-alpha.12
    Affected ranges
    • ECOSYSTEM: ≥ 5.0.0-alpha.12, < 5.0.0-alpha.13

    Update to 5.0.0-alpha.13

Original sources

Check your server →