Use of a Broken or Risky Cryptographic Algorithm Affecting mod_auth_openidc package, versions <0:2.4.9.4-1.module+el8.7.0+20769+fca4d9d0


Severity

Recommended
0.0
high
0
10

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.25% (49th percentile)

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  • Snyk IDSNYK-ORACLE8-MODAUTHOPENIDC-5819025
  • published3 Aug 2023
  • disclosed14 Jul 2023

Introduced: 14 Jul 2023

CVE-2023-37464  (opens in a new tab)
CWE-327  (opens in a new tab)

How to fix?

Upgrade Oracle:8 mod_auth_openidc to version 0:2.4.9.4-1.module+el8.7.0+20769+fca4d9d0 or higher.
This issue was patched in ELSA-2023-4418.

NVD Description

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

OpenIDC/cjose is a C library implementing the Javascript Object Signing and Encryption (JOSE). The AES GCM decryption routine incorrectly uses the Tag length from the actual Authentication Tag provided in the JWE. The spec says that a fixed length of 16 octets must be applied. Therefore this bug allows an attacker to provide a truncated Authentication Tag and to modify the JWE accordingly. Users should upgrade to a version >= 0.6.2.2. Users unable to upgrade should avoid using AES GCM encryption and replace it with another encryption algorithm (e.g. AES CBC).

CVSS Base Scores

version 3.1