The Apache HTTP server is one of the most popular web servers on the Internet.
Multiple vulnerabilities have been discovered in Apache. Please review the CVE identifiers, upstream Apache Software Foundation documentation, and HTTPoxy website referenced below for details.
A remote attacker could cause a Denial of Service condition via multiple vectors or response splitting and cache pollution. Additionally, an attacker could intercept unsecured (HTTP) transmissions via the HTTPoxy vulnerability.
There is no known workaround at this time.
All Apache users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=www-servers/apache-2.4.25"