Security Bulletin
Summary
IBM® SDK Java™ Technology Edition and IBM® Runtime Environment Java™ used by IBM i are vulnerable to confidentiality impacts [CVE-2024-20952, CVE-2024-20918, CVE-2024-20921, CVE-2024-20926, CVE-2024-20945] and a timing-based side-channel attack [CVE-2023-33850] as described in the vulnerability details section. This bulletin identifies the steps to take to address the vulnerabilities as described in the remediation/fixes section.
Vulnerability Details
CVEID: CVE-2024-20952
DESCRIPTION: An unspecified vulnerability in Java SE related to the Security component could allow a remote 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/279685 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-2024-20918
DESCRIPTION: An unspecified vulnerability in Java SE related to the VM component could allow a remote 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/279718 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-2024-20921
DESCRIPTION: An unspecified vulnerability in Java SE related to the VM 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/279734 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-2024-20926
DESCRIPTION: An unspecified vulnerability in Java SE related to the Scripting 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/279716 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-2024-20945
DESCRIPTION: An unspecified vulnerability in Java SE related to the VM component could allow a local authenticated attacker to cause high confidentiality impact.
CVSS Base score: 4.7
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/279775 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N)
CVEID: CVE-2023-33850
DESCRIPTION: IBM GSKit-Crypto could allow a remote attacker to obtain sensitive information, caused by a timing-based side channel in the RSA Decryption implementation. By sending an overly large number of trial messages for decryption, an attacker could exploit this vulnerability to obtain sensitive information. IBM X-Force ID: 257132.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/257132 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)
Affected Products and Versions
| Affected Product(s) | Version(s) |
| IBM i | 7.5 |
| IBM i | 7.4 |
| IBM i | 7.3 |
Remediation/Fixes
The vulnerabilities can be fixed by applying the latest Java PTF Group. Releases 7.5, 7.4, and 7.3, of IBM i will be fixed.
The IBM i PTF Group numbers contain the fixes for the vulnerabilities. Future PTF Groups for Java will also contain the fixes for the vulnerabilities.
| IBM i Release | 5770-JV1 PTF Group and Level | PTF Download Link |
| 7.5 | SF99955 Level 9 | |
| 7.4 | SF99665 Level 22 | |
| 7.3 | SF99725 Level 32 | https://www.ibm.com/support/pages/uid/nas4SF99725 |
Please see the Java document at this URL for the latest Java information for IBM i:
https://www.ibm.com/support/pages/java-ibm-i
If you run your own Java code using the IBM Java Runtime delivered with this product, you should evaluate your code to determine whether additional Java vulnerabilities are applicable to your code. For a complete list of vulnerabilities, refer to the "IBM Java SDK Security Vulnerabilities", located in the References section for more information.
Important note: IBM recommends that all users running unsupported versions of affected products upgrade to supported and fixed version of affected products.
Workarounds and Mitigations
None
Get Notified about Future Security Bulletins
References
Acknowledgement
Change History
27 Mar 2024: Initial Publication
*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.
Disclaimer
According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES ""AS IS"" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY. In addition to other efforts to address potential vulnerabilities, IBM periodically updates the record of components contained in our product offerings. As part of that effort, if IBM identifies previously unidentified packages in a product/service inventory, we address relevant vulnerabilities regardless of CVE date. Inclusion of an older CVEID does not demonstrate that the referenced product has been used by IBM since that date, nor that IBM was aware of a vulnerability as of that date. We are making clients aware of relevant vulnerabilities as we become aware of them. "Affected Products and Versions" referenced in IBM Security Bulletins are intended to be only products and versions that are supported by IBM and have not passed their end-of-support or warranty date. Thus, failure to reference unsupported or extended-support products and versions in this Security Bulletin does not constitute a determination by IBM that they are unaffected by the vulnerability. Reference to one or more unsupported versions in this Security Bulletin shall not create an obligation for IBM to provide fixes for any unsupported or extended-support products or versions.
Document Location
Worldwide
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Document Information
Modified date:
27 March 2024
UID
ibm17145398