SB2020011492 - OpenSUSE Linux update for tomcat

Description

This security bulletin contains information about 3 vulnerabilities.

1) Resource management error (CVE-ID: CVE-2019-10072)

CWE-ID: CWE-399 - Resource Management Errors

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

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

The vulnerability exists due to incomplete fix for SB2019020812 when processing HTTP/2 requests. A remote attacker can perform denial of service attack by not sending WINDOW_UPDATE messages for the connection window (stream 0).

2) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2019-12418)

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to the local user without access to the Tomcat process or configuration files is able to manipulate the RMI registry to perform a man-in-the-middle attack to capture user names and passwords used to access the JMX interface.

Successful vulnerability exploitation requires that Apache Tomcat is configured with the JMX Remote Lifecycle Listener.

3) Session Fixation (CVE-ID: CVE-2019-17563)

CWE-ID: CWE-384 - Session Fixation

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a remote attacker to perform a session fixation attack.

The vulnerability exists due to a race condition when FORM authentication is used in Apache Tomcat. A remote attacker can use a narrow window to perform a session fixation attack.

Remediation

Install update from vendor's website.

References

• https://lists.opensuse.org/opensuse-security-announce/2020-01/msg00013.html