VDB
CVE-2020-24612
CVE-2020-24612
PUBLISHED
CVSS 4.699999809265137 MEDIUM
An issue was discovered in the selinux-policy (aka Reference Policy) package 3.14 through 2020-08-24 because the .config/Yubico directory is mishandled. Consequently, when SELinux is in enforced mode, pam-u2f is not allowed to read the user's U2F configuration file. If configured with the nouserok option (the default when configured by the authselect tool), and that file cannot be read, the second factor is disabled. An attacker with only the knowledge of the password can then log in, bypassing 2FA.
EPSS 0.32% · 23.9th percentile
Risk Scores
CVSS 3.1
4.699999809265137
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS Score
0.32%
23.9th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:16.04:LTS | refpolicy | *, 0 |
| Ubuntu:22.04:LTS | refpolicy | 0, 2:2.20210203-7, 2:2.20210203-9 |
| Ubuntu:20.04:LTS | refpolicy | 0, 2:2.20190201-7, * |
| Ubuntu:18.04:LTS | refpolicy | 2:2.20161023.1-10, 2:2.20180114-1, 0 |
| Ubuntu:14.04:LTS | refpolicy | 2:2.20110726-12, 0, * |
| Ubuntu:24.04:LTS | refpolicy | 2:2.20230929-1, 2:2.20231010-1, 2:2.20231119-1 |
| Ubuntu:25.10 | refpolicy | 0, 2:2.20241211-2, 2:2.20250213-6 |
Timeline
- Aug 24, 2020 CVE Published
- Apr 14, 2021 EPSS Score
- Jun 23, 2021 EPSS Score
- Aug 24, 2021 EPSS Score
- Oct 26, 2021 EPSS Score
- Jan 6, 2022 EPSS Score
- Feb 4, 2022 EPSS Score
- Feb 28, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- May 2, 2022 EPSS Score
- Jul 4, 2022 EPSS Score
- Sep 5, 2022 EPSS Score
References
- https://ubuntu.com/security/CVE-2020-24612 third-party-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1860888 third-party-advisory
- https://github.com/fedora-selinux/selinux-policy/commit/71e1989028802c7875d3436fd3966c587fa383fb third-party-advisory
- https://www.cve.org/CVERecord?id=CVE-2020-24612 third-party-advisory