CentOS Errata and Security Advisory CESA-2007:0556
The Apache HTTP Server is a popular Web server.
The Apache HTTP Server did not verify that a process was an Apache child process before sending it signals. A local attacker with the ability to run scripts on the Apache HTTP Server could manipulate the scoreboard and cause arbitrary processes to be terminated which could lead to a denial of service (CVE-2007-3304). This issue is not exploitable on Red Hat Enterprise Linux 5 if using the default SELinux targeted policy.
A flaw was found in the Apache HTTP Server mod_status module. On sites where the server-status page is publicly accessible and ExtendedStatus is enabled this could lead to a cross-site scripting attack. On Red Hat Enterprise Linux the server-status page is not enabled by default and it is best practice to not make this publicly available. (CVE-2006-5752)
A bug was found in the Apache HTTP Server mod_cache module. On sites where caching is enabled, a remote attacker could send a carefully crafted request that would cause the Apache child process handling that request to crash. This could lead to a denial of service if using a threaded Multi-Processing Module. (CVE-2007-1863)
Users of httpd should upgrade to these updated packages, which contain backported patches to correct these issues. Users should restart Apache after installing this update.
Merged security bulletin from advisories: http://lists.centos.org/pipermail/centos-announce/2007-June/013990.html http://lists.centos.org/pipermail/centos-announce/2007-June/013991.html
Affected packages: httpd httpd-devel httpd-manual mod_ssl
Upstream details at: https://rhn.redhat.com/errata/RHSA-2007-0556.html