The cache_merge_headers_out function in modules/cache/cache_util.c in the mod_cache module in the Apache HTTP Server before 2.4.11 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via an empty HTTP Content-Type header.
A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Http_server | Apache | 2.4.1 (including) | 2.4.1 (including) |
| Http_server | Apache | 2.4.2 (including) | 2.4.2 (including) |
| Http_server | Apache | 2.4.3 (including) | 2.4.3 (including) |
| Http_server | Apache | 2.4.4 (including) | 2.4.4 (including) |
| Http_server | Apache | 2.4.6 (including) | 2.4.6 (including) |
| Http_server | Apache | 2.4.7 (including) | 2.4.7 (including) |
| Http_server | Apache | 2.4.9 (including) | 2.4.9 (including) |
| Http_server | Apache | 2.4.10 (including) | 2.4.10 (including) |
| Red Hat Enterprise Linux 7 | RedHat | httpd-0:2.4.6-31.el7 | * |
| Red Hat JBoss Web Server 3.0 | RedHat | * | |
| Red Hat JBoss Web Server 3 for RHEL 6 | RedHat | apache-commons-collections-eap6-0:3.2.1-18.redhat_7.1.ep6.el6 | * |
| Red Hat JBoss Web Server 3 for RHEL 6 | RedHat | httpd24-0:2.4.6-59.ep7.el6 | * |
| Red Hat JBoss Web Server 3 for RHEL 6 | RedHat | mod_bmx-0:0.9.5-7.GA.ep7.el6 | * |
| Red Hat JBoss Web Server 3 for RHEL 6 | RedHat | mod_cluster-native-0:1.3.1-6.Final_redhat_2.ep7.el6 | * |
| Red Hat JBoss Web Server 3 for RHEL 6 | RedHat | tomcat7-0:7.0.59-42_patch_01.ep7.el6 | * |
| Red Hat JBoss Web Server 3 for RHEL 6 | RedHat | tomcat8-0:8.0.18-52_patch_01.ep7.el6 | * |
| Red Hat JBoss Web Server 3 for RHEL 6 | RedHat | tomcat-vault-0:1.0.8-4.Final_redhat_4.1.ep7.el6 | * |
| Red Hat JBoss Web Server 3 for RHEL 7 | RedHat | apache-commons-collections-eap6-0:3.2.1-18.redhat_7.1.ep6.el7 | * |
| Red Hat JBoss Web Server 3 for RHEL 7 | RedHat | httpd24-0:2.4.6-59.ep7.el7 | * |
| Red Hat JBoss Web Server 3 for RHEL 7 | RedHat | mod_bmx-0:0.9.5-7.GA.ep7.el7 | * |
| Red Hat JBoss Web Server 3 for RHEL 7 | RedHat | mod_cluster-native-0:1.3.1-6.Final_redhat_2.ep7.el7 | * |
| Red Hat JBoss Web Server 3 for RHEL 7 | RedHat | tomcat7-0:7.0.59-42_patch_01.ep7.el7 | * |
| Red Hat JBoss Web Server 3 for RHEL 7 | RedHat | tomcat8-0:8.0.18-52_patch_01.ep7.el7 | * |
| Red Hat JBoss Web Server 3 for RHEL 7 | RedHat | tomcat-vault-0:1.0.8-4.Final_redhat_4.1.ep7.el7 | * |
| Red Hat Software Collections 1 for Red Hat Enterprise Linux 6 | RedHat | httpd24-httpd-0:2.4.6-22.el6 | * |
| Red Hat Software Collections 1 for Red Hat Enterprise Linux 6.4 EUS | RedHat | httpd24-httpd-0:2.4.6-22.el6 | * |
| Red Hat Software Collections 1 for Red Hat Enterprise Linux 6.5 EUS | RedHat | httpd24-httpd-0:2.4.6-22.el6 | * |
| Red Hat Software Collections 1 for Red Hat Enterprise Linux 6.6 EUS | RedHat | httpd24-httpd-0:2.4.6-22.el6 | * |
| Red Hat Software Collections 1 for Red Hat Enterprise Linux 7 | RedHat | httpd24-httpd-0:2.4.6-25.el7 | * |
| Apache2 | Ubuntu | trusty | * |
| Apache2 | Ubuntu | upstream | * |
| Apache2 | Ubuntu | utopic | * |