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OpenAdvisories
High ALSA-2023:4418 1 CVE

Important: mod_auth_openidc:2.3 security update

Published Aug 1, 2023 · Updated Oct 29, 2026

Ecosystem: AlmaLinux

Summary

The mod_auth_openidc is an OpenID Connect authentication module for Apache HTTP Server. It enables an Apache HTTP Server to operate as an OpenID Connect Relying Party and/or OAuth 2.0 Resource Server.

Security Fix(es):

* cjose: AES GCM decryption uses the Tag length from the actual Authentication Tag provided in the JWE (CVE-2023-37464)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Fixed packages 3

ReleasePackageFixed in
AlmaLinux · 8 cjose 0.6.1-3.module_el8.8.0+3591+c9939da8
AlmaLinux · 8 cjose-devel 0.6.1-3.module_el8.8.0+3591+c9939da8
AlmaLinux · 8 mod_auth_openidc 2.4.9.4-1.module_el8.7.0+3305+9a59f0c3

Vulnerabilities 1

  • High 8.6
    CVE-2023-37464

    Incorrect Authentication Tag length usage in AES GCM decryption in OpenIDC/cjose

    OpenIDC/cjose is a C library implementing the Javascript Object Signing and Encryption (JOSE). The AES GCM decryption routine incorrectly uses the Tag length from the actual Authentication Tag provided in the JWE. The spec says that a fixed length of 16 octet…

    OpenIDC cjose cjose cjose Debian Ubuntu Azure Linux Alpine

References

  • report
    https://access.redhat.com/security/cve/CVE-2023-37464
  • report
    https://bugzilla.redhat.com/2223295
  • advisory
    https://errata.almalinux.org/8/ALSA-2023-4418.html