CVE-2024-31209 – oidcc

Package

Manager: erlang
Name: oidcc
Vulnerable Version: >=3.0.0 <3.0.2 || >=3.1.0 <3.1.2 || >=3.2.0-beta.1 <3.2.0-beta.3

Severity

Level: Medium

CVSS v3.1: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:N/A:H

CVSS v4.0: CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

EPSS: 0.00019 pctl0.03041

Details

OpenID Connect client Atom Exhaustion in provider configuration worker ets table location ### Impact DOS by Atom exhaustion is possible by calling `oidcc_provider_configuration_worker:get_provider_configuration/1` or `oidcc_provider_configuration_worker:get_jwks/1`. Since the name is usually provided as a static value in the application using `oidcc`, this is unlikely to be exploited. ### Details Example to illustrate the vulnerability. ```erlang {ok, Claims} = oidcc:retrieve_userinfo( Token, myapp_oidcc_config_provider, <<"client_id">>, <<"client_secret">>, #{} ) ``` The vulnerability is present in `oidcc_provider_configuration_worker:get_ets_table_name/1`. The function `get_ets_table_name` is calling `erlang:list_to_atom/1`. https://github.com/erlef/oidcc/blob/018dbb53dd752cb1e331637d8e0e6a489ba1fae9/src/oidcc_provider_configuration_worker.erl#L385-L388 There might be a case (Very highly improbable) where the 2nd argument of `oidcc_provider_configuration_worker:get_*/1` is called with a different atom each time which eventually leads to the atom table filling up and the node crashing. ### Patches Patched in `3.0.2`, `3.1.2` & `3.2.0-beta.3` ### Workarounds Make sure only valid provider configuration worker names are passed to the functions. ### References * https://erlef.github.io/security-wg/secure_coding_and_deployment_hardening/atom_exhaustion.html * https://www.cve.org/CVERecord?id=CVE-2024-31209 * https://euvd.enisa.europa.eu/enisa/EUVD-2024-1249 * https://github.com/advisories/GHSA-mj35-2rgf-cv8p

Metadata

Created: 2024-04-03T16:46:30Z
Modified: 2025-04-04T01:10:32Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2024/04/GHSA-mj35-2rgf-cv8p/GHSA-mj35-2rgf-cv8p.json
CWE IDs: ["CWE-400"]
Alternative ID: GHSA-mj35-2rgf-cv8p
Finding: F002
Auto approve: 1