Description
Apache Tomcat Native 1.2.0 to 1.2.16 and 1.1.23 to 1.1.34 has a flaw that does not properly check OCSP pre-produced responses, which are lists (multiple entries) of certificate statuses. Subsequently, revoked client certificates may not be properly identified, allowing for users to authenticate with revoked certificates to connections that require mutual TLS. Users not using OCSP checks are not affected by this vulnerability.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Apache Software Foundation | Apache Tomcat Native | 1.2.0 to 1.2.16, 1.1.23 to 1.1.34 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | tomcat-native | 1.2.17-1 | — |
| Debian 13 | tomcat-native | 1.2.17-1 | — |
| Debian 12 | tomcat-native | 1.2.17-1 | — |
| Debian 8 | tomcat-native | 1.1.32~repack-2+deb8u2 | DLA-1475-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | tomcat-native | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat JBoss Web Server 3 | tomcat-native | 1.2.17-17.redhat_17.ep7.el6 | RHSA-2018:2469 |
| Red Hat JBoss Web Server 3 | tomcat7 +11 | 7.0.70-27.ep7.el6 | RHSA-2018:2469 |
| Red Hat JBoss Web Server 3 | tomcat8 +11 | 8.0.36-31.ep7.el6 | RHSA-2018:2469 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 11 SP4 | libtcnative-1-0 | 1.3.4-12.5.5.2 | SUSE-SU-2019:14014-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SUSE Linux Enterprise Point of Sale 11 SP3 | libtcnative-1-0 | 1.3.4-12.5.5.2 | SUSE-SU-2019:14014-1 |
Advisories 3
- RHSA-2018:2469 Red Hat Security Advisory: Red Hat JBoss Web Server 3.1.0 Service Pack 4 security and bug fix update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- DLA-1475-1 tomcat-native - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2019:14014-1 Security update for libtcnative-1-0 SUSE / openSUSE Security Updates · Feb 4, 2026
References
- [www-announce] 20180721 [SECURITY] CVE-2018-8020 Apache Tomcat Native Connector - Mishandled OCSP responses can allow clients to authenticate with revoked certificates mailing-list
- RHSA-2018:2469 vendor-advisory
- 104934 vdb-entry
- [debian-lts-announce] 20180822 [SECURITY] [DLA 1475-1] tomcat-native security update mailing-list
- RHSA-2018:2470 vendor-advisory
- 1041507 vdb-entry
- [tomcat-dev] 20190319 svn commit: r1855831 [26/30] - in /tomcat/site/trunk: ./ docs/ xdocs/ mailing-list
- [tomcat-dev] 20190325 svn commit: r1856174 [26/29] - in /tomcat/site/trunk: docs/ xdocs/ xdocs/stylesheets/ mailing-list
- [tomcat-dev] 20200203 svn commit: r1873527 [26/30] - /tomcat/site/trunk/docs/ mailing-list
- [tomcat-dev] 20200213 svn commit: r1873980 [31/34] - /tomcat/site/trunk/docs/ mailing-list
- [rocketmq-dev] 20201224 [GitHub] [rocketmq] crazywen opened a new pull request #2517: fix CVE-2019-16869, CVE-2018-8020 mailing-list
- [rocketmq-dev] 20201224 [GitHub] [rocketmq] coveralls commented on pull request #2517: fix CVE-2019-16869, CVE-2018-8020 mailing-list
- [rocketmq-dev] 20201224 [GitHub] [rocketmq] codecov-io commented on pull request #2517: fix CVE-2019-16869, CVE-2018-8020 mailing-list