Security Bulletin: Multiple vulnerabilities may affect IBM® Semeru Runtime

Summary

This bulletin covers all applicable Java SE CVEs published by OpenJDK as part of their April 2023 Vulnerability Advisory, plus CVE-2023-25193 and CVE-2023-2597. For more information please refer to OpenJDK’s April 2023 Vulnerability Advisory and the X-Force database entries referenced below.

Vulnerability Details

CVEID:CVE-2023-25193
**DESCRIPTION:**Harfbuzz is vulnerable to a denial of service, caused by an error in hb-ot-layout-gsubgpos.hh. By using consecutive marks during the process of looking back for base glyphs when attaching marks, a remote attacker could exploit this vulnerability to trigger O(n^2) growth and cause a denial of service.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/246411 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)

CVEID:CVE-2023-21930
**DESCRIPTION:**An unspecified vulnerability in Oracle Java SE, Oracle GraalVM Enterprise Edition related to the JSSE component could allow an unauthenticated attacker to cause high confidentiality impact and high integrity impact.
CVSS Base score: 7.4
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/253115 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N)

CVEID:CVE-2023-21967
**DESCRIPTION:**An unspecified vulnerability in Oracle Java SE, Oracle GraalVM Enterprise Edition related to the Hotspot component could allow a remote attacker to cause high confidentiality impact.
CVSS Base score: 5.9
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/253166 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N)

CVEID:CVE-2023-21939
**DESCRIPTION:**An unspecified vulnerability in Oracle Java SE, Oracle GraalVM Enterprise Edition related to the Swing component could allow a remote attacker to cause integrity impact.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/253168 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-2023-21968
**DESCRIPTION:**An unspecified vulnerability in Oracle Java SE and GraalVM Enterprise Edition related to the Libraries component could allow an unauthenticated attacker to cause low integrity impact.
CVSS Base score: 3.7
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/253083 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-2023-21937
**DESCRIPTION:**An unspecified vulnerability in Oracle Java SE, Oracle GraalVM Enterprise Edition related to the Networking component could allow a remote attacker to cause integrity impact.
CVSS Base score: 3.7
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/253167 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-2023-21938
**DESCRIPTION:**An unspecified vulnerability in Oracle Java SE, Oracle GraalVM Enterprise Edition related to the Libraries component could allow a remote attacker to cause integrity impact.
CVSS Base score: 3.7
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/253155 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-2023-2597
**DESCRIPTION:**Eclipse Openj9 is vulnerable to a buffer overflow, caused by improper bounds checking by the getCachedUTFString() function. By using specially crafted input, a local authenticated attacker could overflow a buffer and execute arbitrary code on the system.
CVSS Base score: 7
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/255906 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H)

Affected Products and Versions

Remediation/Fixes

IBM Semeru Runtime 8.0.372.0
IBM Semeru Runtime 11.0.19.0
IBM Semeru Runtime 17.0.7.0

IBM Semeru Runtime releases can be downloaded from the GitHub repositories for Semeru 8, Semeru 11, and Semeru 17, and the IBM Semeru Developer Center.

IBM customers requiring an update for an SDK shipped with an IBM product should contact IBM support, and/or refer to the appropriate product security bulletin.

APAR numbers are as follows:

IJ46999 (CVE-2023-25193)
IJ46965 (CVE-2023-21930)
IJ45272 (CVE-2023-21967)
IJ46969 (CVE-2023-21939)
IJ46971 (CVE-2023-21968)
IJ46972 (CVE-2023-21937)
IJ46974 (CVE-2022-21938)
IJ47000 (CVE-2023-2597)

Workarounds and Mitigations

None