KLA61363 Multiple vulnerabilities in Apache Tomcat

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

Below is a complete list of vulnerabilities:

1. A denial of service vulnerability in HTTP/2 protocol can be exploited remotely to cause denial of service.
2. A denial of service vulnerability in FileUpload can be exploited remotely to cause denial of service.
3. A information disclosure vulnerability can be exploited remotely to obtain sensitive information.
4. A improper input validation vulnerability in HTTP trailer headers can be exploited to execute arbitrary code.

Original advisories

Fixed in Apache Tomcat 9.0.81

Fixed in Apache Tomcat 8.5.94

Exploitation

Public exploits exist for this vulnerability.

Malware exists for this vulnerability. Usually such malware is classified as Exploit. More details.

Related products

Apache-Tomcat

CVE list

CVE-2023-45648 high

CVE-2023-42794 high

CVE-2023-44487 critical

CVE-2023-42795 high

Solution

Update to the latest versionTomcat 8.5 Software Downloads

Tomcat 9.0 Software Downloads

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.

• SB

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

Affected Products

• Apache Tomcat 8.5.x earlier than 8.5.94Apache Tomcat 9.x earlier than 9.0.81