Vulnerabilities (CVE)

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CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2021-32785 2 Apache, Zmartzone 2 Http Server, Mod Auth Openidc 2022-05-10 4.3 MEDIUM 7.5 HIGH
mod_auth_openidc is an authentication/authorization module for the Apache 2.x HTTP server that functions as an OpenID Connect Relying Party, authenticating users against an OpenID Connect Provider. When mod_auth_openidc versions prior to 2.4.9 are configured to use an unencrypted Redis cache (`OIDCCacheEncrypt off`, `OIDCSessionType server-cache`, `OIDCCacheType redis`), `mod_auth_openidc` wrongly performed argument interpolation before passing Redis requests to `hiredis`, which would perform it again and lead to an uncontrolled format string bug. Initial assessment shows that this bug does not appear to allow gaining arbitrary code execution, but can reliably provoke a denial of service by repeatedly crashing the Apache workers. This bug has been corrected in version 2.4.9 by performing argument interpolation only once, using the `hiredis` API. As a workaround, this vulnerability can be mitigated by setting `OIDCCacheEncrypt` to `on`, as cache keys are cryptographically hashed before use when this option is enabled.
CVE-2021-20718 3 Fedoraproject, Oracle, Zmartzone 3 Fedora, Essbase, Mod Auth Openidc 2022-02-21 5.0 MEDIUM 7.5 HIGH
mod_auth_openidc 2.4.0 to 2.4.7 allows a remote attacker to cause a denial-of-service (DoS) condition via unspecified vectors.
CVE-2017-6059 1 Zmartzone 1 Mod Auth Openidc 2020-06-16 5.0 MEDIUM 7.5 HIGH
Mod_auth_openidc.c in the Ping Identity OpenID Connect authentication module for Apache (aka mod_auth_openidc) before 2.14 allows remote attackers to spoof page content via a malicious URL provided to the user, which triggers an invalid request.