Moderate: mod_auth_openidc security and bug fix update

Related Vulnerabilities: CVE-2022-23527   CVE-2023-28625  

Synopsis

Moderate: mod_auth_openidc security and bug fix update

Type/Severity

Security Advisory: Moderate

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Topic

An update for mod_auth_openidc is now available for Red Hat Enterprise Linux 9.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

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):

  • mod_auth_openidc: Open Redirect in oidc_validate_redirect_url() using tab character (CVE-2022-23527)
  • mod_auth_openidc: NULL pointer dereference when OIDCStripCookies is set and a crafted Cookie header is supplied (CVE-2023-28625)

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.

Additional Changes:

For detailed information on changes in this release, see the Red Hat Enterprise Linux 9.3 Release Notes linked from the References section.

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Affected Products

  • Red Hat Enterprise Linux for x86_64 9 x86_64
  • Red Hat Enterprise Linux for IBM z Systems 9 s390x
  • Red Hat Enterprise Linux for Power, little endian 9 ppc64le
  • Red Hat Enterprise Linux for ARM 64 9 aarch64

Fixes

  • BZ - 2153655 - CVE-2022-23527 mod_auth_openidc: Open Redirect in oidc_validate_redirect_url() using tab character
  • BZ - 2184118 - CVE-2023-28625 mod_auth_openidc: NULL pointer dereference when OIDCStripCookies is set and a crafted Cookie header is supplied
  • BZ - 2189268 - auth_openidc.conf probably should be mode 0640 by default