Debian Long Term Support / LTS Security Information / 2023 / Security Information -- DLA-3499-1 libapache2-mod-auth-openidc

Debian Security Advisory

DLA-3499-1 libapache2-mod-auth-openidc -- LTS security update

Date Reported:

19 Jul 2023

Affected Packages:

libapache2-mod-auth-openidc

Vulnerable:

Yes

Security database references:

In the Debian bugtracking system: Bug 993648, Bug 1026444.
In Mitre's CVE dictionary: CVE-2021-39191, CVE-2022-23527.

More information:

Open Redirect vulnerabilities were found in libapache2-mod-auth-openidc, OpenID Connect Relying Party implementation for Apache, which could lead to information disclosure via phishing attacks.

• CVE-2021-39191

  The 3rd-party init SSO functionality of mod_auth_openidc was reported to be vulnerable to an open redirect attack by supplying a crafted URL in the target_link_uri parameter.

• CVE-2022-23527

  When providing a logout parameter to the redirect URI, mod_auth_openidc failed to properly check for URLs starting with "/\t", leading to an open redirect.

For Debian 10 buster, these problems have been fixed in version 2.3.10.2-1+deb10u3.

We recommend that you upgrade your libapache2-mod-auth-openidc packages.

For the detailed security status of libapache2-mod-auth-openidc please refer to its security tracker page at: https://security-tracker.debian.org/tracker/libapache2-mod-auth-openidc

Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS