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Debian LTS Advisory DLA-2298-1                debian-lts@lists.debian.org
https://www.debian.org/lts/security/                    Thorsten Alteholz
July 29, 2020                                 https://wiki.debian.org/LTS
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Package        : libapache2-mod-auth-openidc
Version        : 2.1.6-1+deb9u1
CVE ID         : CVE-2019-14857 CVE-2019-20479 CVE-2019-1010247


Several issues have been found in libapache2-mod-auth-openidc, the OpenID 
Connect authentication module for the Apache HTTP server.

CVE-2019-14857

     Insufficient validation of URLs leads to an Open Redirect
     vulnerability. An attacker may trick a victim into providing
     credentials for an OpenID provider by forwarding the request to an
     illegitimate website.

CVE-2019-20479

     Due to insufficient validatation of URLs an Open Redirect
     vulnerability for URLs beginning with a slash and backslash could be
     abused.

CVE-2019-1010247

     The OIDCRedirectURI page contains generated JavaScript code that uses
     a poll parameter as a string variable, thus might contain additional
     JavaScript code. This might result in Criss-Site Scripting (XSS).


For Debian 9 stretch, these problems have been fixed in version
2.1.6-1+deb9u1.

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/source-package/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