Security Bulletin: Multiple vulnerabilities in IBM Liberty for Java for IBM Cloud

Summary

There are vulnerabilities in the IBM® SDK, Java™ Technology Edition that is shipped with IBM Liberty for Java for IBM Cloud. This product has addressed the applicable CVE. If you run your own Java code using the IBM Java Runtime delivered with this product, you should evaluate your code to determine whether this vulnerability is applicable to your code. There are also multiple vulnerabilities in the IBM WebSphere Application Server Liberty that is shipped with IBM Liberty for Java for IBM Cloud. IBM WebSphere Application Server Liberty is vulnerable to a denial of service with the servlet-3.1, servlet-4.0, servlet-5.0, or servlet-6.0 feature with the HTTP/2 protocol enabled. IBM WebSphere Application Server Liberty could provide weaker than expected security with the appSecurity-1.0, appSecurity-2.0, appSecurity-3.0, appSecurity-4.0 or appSecurity-5.0 feature enabled. There is a vulnerability in the Apache Santuario library used by IBM WebSphere Application Server Liberty when the wsSecurity-1.1, wsSecuritySaml-1.1 or samlWeb-2.0 feature is enabled.

Vulnerability Details

CVEID:CVE-2023-44483
**DESCRIPTION:**Apache Santuario could allow a remote authenticated attacker to obtain sensitive information, caused by the storage of a private key in the log files when using the JSR 105 API. By gaining access to the log files, an attacker could exploit this vulnerability to obtain the private key information, and use this information to launch further attacks against the affected system.
CVSS Base score: 6.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/269153 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N)

CVEID:CVE-2023-22081
**DESCRIPTION:**An unspecified vulnerability in Java SE related to the JSSE component could allow a remote attacker to cause no confidentiality impact, no integrity impact, and low availability impact.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/268929 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)

CVEID:CVE-2023-22067
**DESCRIPTION:**An unspecified vulnerability in Java SE related to the CORBA component could allow a remote attacker to cause no confidentiality impact, low integrity impact, and no availability impact.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/268928 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)

CVEID:CVE-2023-5676
**DESCRIPTION:**Eclipse OpenJ9 is vulnerable to a denial of service, caused by a flaw when a shutdown signal (SIGTERM, SIGINT or SIGHUP) is received before the JVM has finished initializing. By sending a specially crafted request, a local authenticated attacker could exploit this vulnerability to cause an infinite busy hang on a spinlock or a segmentation fault.
CVSS Base score: 4.1
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/271615 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H)

CVEID:CVE-2023-22045
**DESCRIPTION:**An unspecified vulnerability in Java SE related to the VM component could allow a remote attacker to cause low confidentiality impacts.
CVSS Base score: 3.7
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/261047 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N)

CVEID:CVE-2023-22049
**DESCRIPTION:**An unspecified vulnerability in Java SE related to the Libraries component could allow a remote attacker to cause low integrity impacts.
CVSS Base score: 3.7
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/261048 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N)

CVEID:CVE-2023-46158
**DESCRIPTION:**IBM WebSphere Application Server Liberty 23.0.0.9 through 23.0.0.10 could provide weaker than expected security due to improper resource expiration handling. IBM X-Force ID: 268775.
CVSS Base score: 4.9
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/268775 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L)

CVEID:CVE-2023-44487
**DESCRIPTION:**Multiple vendors are vulnerable to a denial of service, caused by a flaw in handling multiplexed streams in the HTTP/2 protocol. By sending numerous HTTP/2 requests and RST_STREAM frames over multiple streams, a remote attacker could exploit this vulnerability to cause a denial of service due to server resource consumption.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/268044 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Affected Products and Versions

Remediation/Fixes

To upgrade to Liberty for Java for IBM Cloud v4.3-20231128-1631 or higher, you must re-stage or re-push your application

To find the current version of IBM Liberty for Java for IBM Cloud being used, from the command-line Cloud Foundry client by running the following commands:

cf ssh <appname> -c “cat staging_info.yml”

Look for similar lines:

{“detected_buildpack”:“Liberty for Java™ (WAR, liberty-xxx, v4.3-20231128-1631, xxx, env)“,”start_command”:“.liberty/initial_startup.rb”}

To re-stage your application using the command-line Cloud Foundry client, use the following command:

cf restage <appname>

To re-push your application using the command-line Cloud Foundry client, use the following command:

cf push <appname>

Workarounds and Mitigations

None