Description
In Apache HTTP Server 2.4 releases 2.4.37 and 2.4.38, a bug in mod_ssl when using per-location client certificate verification with TLSv1.3 allowed a client to bypass configured access control restrictions.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Apache | Apache HTTP Server | 2.4.37, 2.4.38 | — |
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 | apache2 | 2.4.38-3 | — |
| Debian 13 | apache2 | 2.4.38-3 | — |
| Debian 12 | apache2 | 2.4.38-3 | — |
| Debian 10 | apache2 | 2.4.38-3+deb10u9 | DLA-3351-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | httpd +7 | 2.4.37-11.module+el8.0.0+2969+90015743 | RHSA-2019:0980 |
| RHEL 8 | mod_http2 | 1.11.3-2.module+el8.0.0+2969+90015743 | RHSA-2019:0980 |
| RHEL 8 | mod_ssl +1 | 1:2.4.37-11.module+el8.0.0+2969+90015743 | RHSA-2019:0980 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | apache2 | 2.4.39-r0 | — |
| Alpine v3.23 | apache2 | 2.4.39-r0 | — |
| Alpine v3.22 | apache2 | 2.4.39-r0 | — |
| Alpine v3.21 | apache2 | 2.4.39-r0 | — |
| Alpine v3.20 | apache2 | 2.4.39-r0 | — |
Show 14 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | apache2 | 2.4.39-r0 | — |
| Alpine v3.18 | apache2 | 2.4.39-r0 | — |
| Alpine v3.17 | apache2 | 2.4.39-r0 | — |
| Alpine v3.16 | apache2 | 2.4.39-r0 | — |
| Alpine v3.15 | apache2 | 2.4.39-r0 | — |
| Alpine v3.14 | apache2 | 2.4.39-r0 | — |
| Alpine v3.13 | apache2 | 2.4.39-r0 | — |
| Alpine v3.12 | apache2 | 2.4.39-r0 | — |
| Alpine v3.11 | apache2 | 2.4.39-r0 | — |
| Alpine v3.10 | apache2 | 2.4.39-r0 | — |
| Alpine v3.9 | apache2 | 2.4.39-r0 | — |
| Alpine v3.8 | apache2 | 2.4.39-r0 | — |
| Alpine v3.7 | apache2 | 2.4.39-r0 | — |
| Alpine v3.6 | apache2 | 2.4.39-r0 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | httpd +7 | 2.4.39-1.amzn2.0.1 | ALAS2-2019-1189 |
| Amazon Linux 2 | mod_ssl +1 | 1:2.4.39-1.amzn2.0.1 | ALAS2-2019-1189 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | httpd +7 | 2.4.37-11.0.1.module+el8.0.0+5209+a98d70d6 | ELSA-2019-0980 |
| Oracle Linux 8 | mod_http2 | 1.11.3-2.module+el8.0.0+5209+a98d70d6 | ELSA-2019-0980 |
| Oracle Linux 8 | mod_ssl +1 | 1:2.4.37-11.0.1.module+el8.0.0+5209+a98d70d6 | ELSA-2019-0980 |
Advisories 5
- RHSA-2019:0980 Red Hat Security Advisory: httpd:2.4 security update Red Hat Security Advisories (RHSA) · Sep 21, 2026
- DLA-3351-1 apache2 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- WID-SEC-2023-2047 Apache HTTP Server: Mehrere Schwachstellen BSI CERT-Bund (WID) · Aug 13, 2023
- ELSA-2019-0980 Important: httpd:2.4 security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Jul 30, 2019
- ALAS2-2019-1189 Important: httpd security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · May 20, 2019
References
- [oss-security] 20190401 CVE-2019-0215: mod_ssl access control bypass mailing-list
- [httpd-cvs] 20190402 svn commit: r1856807 - /httpd/test/framework/trunk/t/security/CVE-2019-0215.t mailing-list
- 107667 vdb-entry
- FEDORA-2019-cf7695b470 vendor-advisory
- FEDORA-2019-119b14075a vendor-advisory
- https://httpd.apache.org/security/vulnerabilities_24.html
- https://support.f5.com/csp/article/K59440504
- https://security.netapp.com/advisory/ntap-20190423-0001/
- RHSA-2019:0980 vendor-advisory
- FEDORA-2019-a4ed7400f4 vendor-advisory
- https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html
- [httpd-dev] 20190804 Re: svn commit: r1856807 - /httpd/test/framework/trunk/t/security/CVE-2019-0215.t mailing-list
- [httpd-cvs] 20190806 svn commit: r1864463 - /httpd/test/framework/trunk/t/security/CVE-2019-0215.t mailing-list
- [httpd-dev] 20190806 Re: svn commit: r1856807 - /httpd/test/framework/trunk/t/security/CVE-2019-0215.t mailing-list
- [httpd-cvs] 20190815 svn commit: r1048743 [4/4] - in /websites/staging/httpd/trunk/content: ./ security/vulnerabilities-httpd.xml security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilit mailing-list
- [httpd-cvs] 20190815 svn commit: r1048742 [4/4] - in /websites/staging/httpd/trunk/content: ./ security/vulnerabilities-httpd.xml security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilit mailing-list
- https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
- https://www.oracle.com/security-alerts/cpujan2020.html
- [httpd-cvs] 20200401 svn commit: r1058586 [4/4] - in /websites/staging/httpd/trunk/content: ./ security/vulnerabilities-httpd.xml security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilit mailing-list
- [httpd-cvs] 20200401 svn commit: r1058587 [4/4] - in /websites/staging/httpd/trunk/content: ./ security/vulnerabilities-httpd.xml security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilit mailing-list
- https://www.oracle.com/security-alerts/cpuapr2020.html
- [httpd-cvs] 20210330 svn commit: r1073139 [1/13] - in /websites/staging/httpd/trunk/content: ./ security/json/ mailing-list
- [httpd-cvs] 20210330 svn commit: r1073143 [3/3] - in /websites/staging/httpd/trunk/content: ./ security/ mailing-list
- [httpd-cvs] 20210330 svn commit: r1073140 [4/4] - in /websites/staging/httpd/trunk/content: ./ security/cvejsontohtml.py security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.ht mailing-list
- [httpd-cvs] 20210330 svn commit: r1073139 [12/13] - in /websites/staging/httpd/trunk/content: ./ security/json/ mailing-list
- [httpd-cvs] 20210330 svn commit: r1888194 [12/13] - /httpd/site/trunk/content/security/json/ mailing-list
- [httpd-cvs] 20210330 svn commit: r1073149 [1/13] - in /websites/staging/httpd/trunk/content: ./ security/ security/json/ mailing-list
- [httpd-cvs] 20210330 svn commit: r1073149 [12/13] - in /websites/staging/httpd/trunk/content: ./ security/ security/json/ mailing-list
- [httpd-cvs] 20210606 svn commit: r1075470 [4/4] - in /websites/staging/httpd/trunk/content: ./ security/json/CVE-2020-13938.json security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabiliti mailing-list