ESB-2026.3421 — Vulnetix

ESB-2026.3421 PUBLISHED CVSS 8.100000381469727 HIGH

=========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2026.3421 USN-8158-1: Dogtag PKI vulnerability 9 April 2026 =========================================================================== AUSCERT Security Bulletin Summary --------------------------------- Product: Dogtag PKI Publisher: Ubuntu Operating System: Ubuntu Resolution: Patch/Upgrade CVE Names: CVE-2021-20179 Original Bulletin: https://ubuntu.com/security/notices/USN-8158-1 Comment: CVSS (Max): 8.1 CVE-2021-20179 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N) CVSS Source: Ubuntu Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N EPSS (Max): 0.3% (52nd) CVE-2021-20179 2026-04-08 - --------------------------BEGIN INCLUDED TEXT-------------------- USN-8158-1: Dogtag PKI vulnerability Publication date 8 April 2026 Overview Dogtag PKI could allow unintended access to network resources. Releases 20.04 LTS 18.04 LTS --------------------------------------------------------------------------------- Open side navigation Packages o dogtag-pki - Enterprise-class Certificate Authority Details Fraser Tweedale and Geetika Kapoor discovered that Dogtag PKI could renew a certificate without proper authentication. An attacker could possibly use this to repeatedly renew a compromised certificate and maintain unauthorized access to a system or resource. Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu Package Version Release dogtag-pki - 10.8.3-1ubuntu1+esm1 Ubuntu Pro Fix available with Ubuntu Pro via ESM Apps. A community fix might become publicly available in the future. libsymkey-java - 10.8.3-1ubuntu1+esm1 Ubuntu Pro Fix available with Ubuntu Pro via ESM Apps. A community fix might become publicly available in the future. libsymkey-jni - 10.8.3-1ubuntu1+esm1 Ubuntu Pro Fix available with Ubuntu Pro via ESM Apps. A community fix might become publicly available in the future. pki-base - 10.8.3-1ubuntu1+esm1 Ubuntu Pro Fix available with Ubuntu Pro via ESM Apps. A community fix might become publicly available in the future. pki-base-java - 10.8.3-1ubuntu1+esm1 Ubuntu Pro Fix available with Ubuntu Pro via ESM Apps. A community fix might become publicly available in the future. pki-ca - 10.8.3-1ubuntu1+esm1 Ubuntu Pro Fix available with Ubuntu Pro via ESM Apps. A community fix might become publicly available in the future. pki-console - 10.8.3-1ubuntu1+esm1 Ubuntu Pro Fix available with Ubuntu Pro via ESM Apps. A community fix might become publicly available in the future. 20.04 pki-kra - 10.8.3-1ubuntu1+esm1 Ubuntu Pro Fix available with Ubuntu LTS Pro via ESM Apps. A community fix might become publicly available in focal the future. pki-ocsp - 10.8.3-1ubuntu1+esm1 Ubuntu Pro Fix available with Ubuntu Pro via ESM Apps. A community fix might become publicly available in the future. pki-server - 10.8.3-1ubuntu1+esm1 Ubuntu Pro Fix available with Ubuntu Pro via ESM Apps. A community fix might become publicly available in the future. pki-tks - 10.8.3-1ubuntu1+esm1 Ubuntu Pro Fix available with Ubuntu Pro via ESM Apps. A community fix might become publicly available in the future. pki-tools - 10.8.3-1ubuntu1+esm1 Ubuntu Pro Fix available with Ubuntu Pro via ESM Apps. A community fix might become publicly available in the future. pki-tps - 10.8.3-1ubuntu1+esm1 Ubuntu Pro Fix available with Ubuntu Pro via ESM Apps. A community fix might become publicly available in the future. pki-tps-client - 10.8.3-1ubuntu1+esm1 Ubuntu Pro Fix available with Ubuntu Pro via ESM Apps. A community fix might become publicly available in the future. python3-pki-base - 10.8.3-1ubuntu1+esm1 Ubuntu Pro Fix available with Ubuntu Pro via ESM Apps. A community fix might become publicly available in the future. dogtag-pki - 10.6.0-1ubuntu2+esm1 Ubuntu Pro Fix available with Ubuntu Pro via ESM Apps. A community fix might become publicly available in the future. libsymkey-java - 10.6.0-1ubuntu2+esm1 Ubuntu Pro Fix available with Ubuntu Pro via ESM Apps. A community fix might become publicly available in the future. libsymkey-jni - 10.6.0-1ubuntu2+esm1 Ubuntu Pro Fix available with Ubuntu Pro via ESM Apps. A community fix might become publicly available in the future. pki-base - 10.6.0-1ubuntu2+esm1 Ubuntu Pro Fix available with Ubuntu Pro via ESM Apps. A community fix might become publicly available in the future. pki-base-java - 10.6.0-1ubuntu2+esm1 Ubuntu Pro Fix available with Ubuntu Pro via ESM Apps. A community fix might become publicly available in the future. pki-ca - 10.6.0-1ubuntu2+esm1 Ubuntu Pro Fix available with Ubuntu Pro via ESM Apps. A community fix might become publicly available in the future. pki-console - 10.6.0-1ubuntu2+esm1 Ubuntu Pro Fix available with Ubuntu Pro via ESM Apps. A community fix might become publicly available in the future. 18.04 pki-kra - 10.6.0-1ubuntu2+esm1 Ubuntu Pro Fix available with Ubuntu LTS Pro via ESM Apps. A community fix might become publicly available in bionic the future. pki-ocsp - 10.6.0-1ubuntu2+esm1 Ubuntu Pro Fix available with Ubuntu Pro via ESM Apps. A community fix might become publicly available in the future. pki-server - 10.6.0-1ubuntu2+esm1 Ubuntu Pro Fix available with Ubuntu Pro via ESM Apps. A community fix might become publicly available in the future. pki-tks - 10.6.0-1ubuntu2+esm1 Ubuntu Pro Fix available with Ubuntu Pro via ESM Apps. A community fix might become publicly available in the future. pki-tools - 10.6.0-1ubuntu2+esm1 Ubuntu Pro Fix available with Ubuntu Pro via ESM Apps. A community fix might become publicly available in the future. pki-tps - 10.6.0-1ubuntu2+esm1 Ubuntu Pro Fix available with Ubuntu Pro via ESM Apps. A community fix might become publicly available in the future. pki-tps-client - 10.6.0-1ubuntu2+esm1 Ubuntu Pro Fix available with Ubuntu Pro via ESM Apps. A community fix might become publicly available in the future. python3-pki-base - 10.6.0-1ubuntu2+esm1 Ubuntu Pro Fix available with Ubuntu Pro via ESM Apps. A community fix might become publicly available in the future. --------------------------------------------------------------------------------- References o CVE-2021-20179 - --------------------------END INCLUDED TEXT---------------------- You have received this e-mail bulletin as a result of your organisation's registration with AUSCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AUSCERT's members. As AUSCERT did not write the document quoted above, AUSCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AUSCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: https://portal.auscert.org.au/bulletins/ =========================================================================== AUSCERT The University of Queensland, Brisbane QLD 4072 Australia e: auscert@auscert.org.au t: +61 (0)7 3365 4417 Allies in Cyber Security ===========================================================================

Risk Scores

CVSS v3.1

8.100000381469727

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Affected Products

Vendor	Product	Versions
Ubuntu	Dogtag PKI

Timeline

Apr 9, 2026 CVE Published
Apr 9, 2026 Distribution Patch

References

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