KLA12365 Multiple vulnerabilities in Apache HTTP Server

Multiple vulnerabilities were found in Apache HTTP Server. Malicious users can exploit these vulnerabilities to cause denial of service, bypass security restrictions, obtain sensitive information, execute arbitrary code.

Below is a complete list of vulnerabilities:

1. Denial of service vulnerability in mod_http2 can be exploited via special crafted request to cause denial of service.
2. Security bypass vulnerability in mod_ssl can be exploited to bypass security restrictions.
3. Information disclosure vulnerability in URL normalization can be exploited to obtain sensitive information.
4. Code execution vulnerability in less-privileged child processes or threads can be exploited to execute arbitrary code.
5. Use after free vulnerability in mod_http2 can be exploited to cause denial of service.
6. Security bypass vulnerability in mod_auth_digest can be exploited to bypass security restrictions.

Original advisories

Fixed in Apache HTTP Server 2.4.39

Exploitation

Public exploits exist for this vulnerability.

Related products

Apache-HTTP-Server

CVE list

CVE-2019-0197 warning

CVE-2019-0215 critical

CVE-2019-0220 high

CVE-2019-0211 critical

CVE-2019-0196 high

CVE-2019-0217 critical

Solution

Update to the latest version

Download Apache HTTP Server

Impacts

• ACE

Arbitrary code execution. Exploitation of vulnerabilities with this impact can lead to executing by abuser any code or commands at vulnerable machine or process.

• OSI

Obtain sensitive information. Exploitation of vulnerabilities with this impact can lead to capturing by abuser information, critical for user or system.

• DoS

Denial of service. Exploitation of vulnerabilities with this impact can lead to loss of system availability or critical functional fault.

• CI

Code injection. Exploitation of vulnerabilities with this impact can lead to changes in target code.

• SB

Security bypass. Exploitation of vulnerabilities with this impact can lead to performing actions restricted by current security settings.

Affected Products

• Apache HTTP Server earlier than 2.4.39