ssl_engine_kernel.c in mod_ssl before 2.8.24, when using SSLVerifyClient optional in the global virtual host configuration, does not properly enforce SSLVerifyClient require in a per-location context, which allows remote attackers to bypass intended access restrictions.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Http_server | Apache | 2.0.35 (including) | 2.0.55 (excluding) |
| Red Hat Enterprise Linux 3 | RedHat | httpd-0:2.0.46-46.3.ent | * |
| Red Hat Enterprise Linux 4 | RedHat | httpd-0:2.0.52-12.2.ent | * |
| Red Hat Enterprise Linux AS (Advanced Server) version 2.1 | RedHat | * | |
| Red Hat Enterprise Linux ES version 2.1 | RedHat | * | |
| Red Hat Enterprise Linux WS version 2.1 | RedHat | * | |
| Red Hat Linux Advanced Workstation 2.1 | RedHat | * | |
| Red Hat Stronghold 4 | RedHat | * | |
| Stronghold 4.0 for Red Hat Enterprise Linux AS (version 2.1) | RedHat | * | |
| Apache2 | Ubuntu | dapper | * |
| Apache2 | Ubuntu | devel | * |
| Apache2 | Ubuntu | edgy | * |
| Apache2 | Ubuntu | feisty | * |
| Libapache-mod-ssl | Ubuntu | dapper | * |
| Libapache-mod-ssl | Ubuntu | edgy | * |
| Libapache-mod-ssl | Ubuntu | feisty | * |