vulnerability
Alma Linux: CVE-2025-23048: Moderate: httpd security update (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 9 | (AV:N/AC:L/Au:N/C:C/I:C/A:N) | Sep 3, 2025 | Sep 5, 2025 | Nov 13, 2025 |
Severity
9
CVSS
(AV:N/AC:L/Au:N/C:C/I:C/A:N)
Published
Sep 3, 2025
Added
Sep 5, 2025
Modified
Nov 13, 2025
Description
In some mod_ssl configurations on Apache HTTP Server 2.4.35 through to 2.4.63, an access control bypass by trusted clients is possible using TLS 1.3 session resumption.
Configurations are affected when mod_ssl is configured for multiple virtual hosts, with each restricted to a different set of trusted client certificates (for example with a different SSLCACertificateFile/Path setting). In such a case, a client trusted to access one virtual host may be able to access another virtual host, if SSLStrictSNIVHostCheck is not enabled in either virtual host.
Solutions
alma-upgrade-httpdalma-upgrade-httpd-corealma-upgrade-httpd-develalma-upgrade-httpd-filesystemalma-upgrade-httpd-manualalma-upgrade-httpd-toolsalma-upgrade-mod_http2alma-upgrade-mod_ldapalma-upgrade-mod_luaalma-upgrade-mod_mdalma-upgrade-mod_proxy_htmlalma-upgrade-mod_sessionalma-upgrade-mod_ssl
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