CVE-2020-26244 SUSE CVE security@suse.de SUSE Security Team SUSE CVE-2020-26244 Interim 1 5 2025-02-17T01:12:46Z current 2021-09-30T01:32:54Z 2025-02-17T01:12:46Z cve-database/bin/generate-cvrf-cve.pl 2020-12-27T01:00:00Z CVE-2020-26244 Python oic is a Python OpenID Connect implementation. In Python oic before version 1.2.1, there are several related cryptographic issues affecting client implementations that use the library. The issues are: 1) The IdToken signature algorithm was not checked automatically, but only if the expected algorithm was passed in as a kwarg. 2) JWA `none` algorithm was allowed in all flows. 3) oic.consumer.Consumer.parse_authz returns an unverified IdToken. The verification of the token was left to the discretion of the implementator. 4) iat claim was not checked for sanity (i.e. it could be in the future). These issues are patched in version 1.2.1. The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). https://www.suse.com/support/security/rating/ SUSE Security Ratings openSUSE Tumbleweed python310-oic-1.5.0-1.8 python311-oic-1.5.0-1.8 python312-oic-1.5.0-1.8 python36-oic-1.2.1-1.2 python38-oic-1.2.1-1.2 python39-oic-1.2.1-1.2 python310-oic-1.5.0-1.8 as a component of openSUSE Tumbleweed python311-oic-1.5.0-1.8 as a component of openSUSE Tumbleweed python312-oic-1.5.0-1.8 as a component of openSUSE Tumbleweed python36-oic-1.2.1-1.2 as a component of openSUSE Tumbleweed python38-oic-1.2.1-1.2 as a component of openSUSE Tumbleweed python39-oic-1.2.1-1.2 as a component of openSUSE Tumbleweed Python oic is a Python OpenID Connect implementation. In Python oic before version 1.2.1, there are several related cryptographic issues affecting client implementations that use the library. The issues are: 1) The IdToken signature algorithm was not checked automatically, but only if the expected algorithm was passed in as a kwarg. 2) JWA `none` algorithm was allowed in all flows. 3) oic.consumer.Consumer.parse_authz returns an unverified IdToken. The verification of the token was left to the discretion of the implementator. 4) iat claim was not checked for sanity (i.e. it could be in the future). These issues are patched in version 1.2.1. CVE-2020-26244 openSUSE Tumbleweed:python310-oic-1.5.0-1.8 openSUSE Tumbleweed:python311-oic-1.5.0-1.8 openSUSE Tumbleweed:python312-oic-1.5.0-1.8 openSUSE Tumbleweed:python36-oic-1.2.1-1.2 openSUSE Tumbleweed:python38-oic-1.2.1-1.2 openSUSE Tumbleweed:python39-oic-1.2.1-1.2 moderate 4.9 AV:N/AC:M/Au:S/C:P/I:P/A:N 6.8 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N