SB2025071737 - Red Hat Enterprise Linux 9 update for tomcat

Description

This security bulletin contains information about 3 secuirty vulnerabilities.

1) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2024-50379)

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to missing access restrictions to the default servlet. If the default servlet is write enabled (readonly initialisation parameter set to the non-default value of false) for a case insensitive file system, concurrent read and upload under load of the same file can bypass Tomcat's case sensitivity checks and cause an uploaded file to be treated as a JSP leading to remote code execution.

2) Permissions, privileges, and access controls (CVE-ID: CVE-2024-56337)

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to incomplete mitigation for #VU101814(CVE-2024-50379) on a case insensitive file system with the default servlet write enabled (readonly initialisation parameter set to the non-default value of false). A remote attacker can upload malicious files to the server and execute them compromising the system.

The mitigation bypass depends on the version of Java used on the system.

3) Improper error handling (CVE-ID: CVE-2025-31650)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient error handling for certain invalid HTTP priority headers. A remote attacker can send a large amount of specially crafted HTTP requests to the server and consume all available memory, resulting in a denial of service condition.

Remediation

Install update from vendor's website.

References

• https://access.redhat.com/errata/RHSA-2025:11381