Use of Insufficiently Random Values Affecting mod_auth_openidc:2.3/cjose-devel package, versions <0:0.6.1-2.module+el8+2454+f890a43a


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.21% (59th percentile)

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  • Snyk IDSNYK-RHEL8-MODAUTHOPENIDC-4275309
  • published29 Jul 2021
  • disclosed24 Jul 2021

Introduced: 24 Jul 2021

CVE-2021-32791  (opens in a new tab)
CWE-330  (opens in a new tab)

How to fix?

Upgrade RHEL:8 mod_auth_openidc:2.3/cjose-devel to version 0:0.6.1-2.module+el8+2454+f890a43a or higher.
This issue was patched in RHSA-2022:1823.

NVD Description

Note: Versions mentioned in the description apply only to the upstream mod_auth_openidc:2.3/cjose-devel package and not the mod_auth_openidc:2.3/cjose-devel package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

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. In mod_auth_openidc before version 2.4.9, the AES GCM encryption in mod_auth_openidc uses a static IV and AAD. It is important to fix because this creates a static nonce and since aes-gcm is a stream cipher, this can lead to known cryptographic issues, since the same key is being reused. From 2.4.9 onwards this has been patched to use dynamic values through usage of cjose AES encryption routines.

CVSS Scores

version 3.1