Security Alert (A21-06-07): Multiple Vulnerabilities in Apache HTTP Server

Description:

The Apache Software Foundation released a security update to address multiple vulnerabilities in the HTTP Server and its modules. A remote attacker could exploit the vulnerabilities by sending a specially crafted request to the affected systems.

Affected Systems:

• Apache versions 2.4.0 to 2.4.46

Impact:

Depending on the vulnerability exploited, a successful exploitation could lead to denial of service, information disclosure or security restriction bypass on an affected system.

Recommendation:

The Apache Software Foundation has released new version of the product to address the issues and they can be downloaded at the following URL:

https://httpd.apache.org/download.cgi#apache24

More Information:

• https://httpd.apache.org/download.cgi#apache24
• https://www.hkcert.org/security-bulletin/apache-http-server-multiple-vulnerabilities_20210615
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-17567
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-13938
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-13950
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-35452
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-26690
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-26691
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30641
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31618