Security Bulletin
Summary
There are multiple vulnerabilities in IBM® Runtime Environment Java™ Version 7.0.10.35 and earlier, 7.1.4.35 and earlier, 8.0.5.27 and earlier used by IBM® Db2®. These issues were disclosed as part of the IBM Java SDK updates in January 2019.
Vulnerability Details
CVEID: CVE-2018-1890
DESCRIPTION: IBM SDK, Java Technology Edition Version 8 on the AIX platform uses absolute RPATHs which may facilitate code injection and privilege elevation by local users.
CVSS Base Score: 5.6
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/152081 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L)
CVEID: CVE-2019-2426
DESCRIPTION: An unspecified vulnerability related to the Java SE Networking component could allow an unauthenticated attacker to obtain sensitive information resulting in a low confidentiality impact using unknown attack vectors.
CVSS Base Score: 3.7
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/155744 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N)
CVEID: CVE-2018-12547
DESCRIPTION: Eclipse OpenJ9 is vulnerable to a buffer overflow, caused by improper bounds checking by the jio_snprintf() and jio_vsnprintf() functions. By sending an overly long argument, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause the application to crash.
CVSS Base Score: 9.8
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/157512 for more information
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
Affected Products and Versions
Remediation/Fixes
The fix for this vulnerability is in the latest version of IBM JDK. Customers running any vulnerable fixpack level of an affected Program, V10.1, V10.5 or V11.1 can download the latest version of IBM JDK from Fix Central.
Affected IBM SDK, Java Technology Edition, Version:
- 7.0.10.35 and earlier
- 7.1.4.35 and earlier
- 8.0.5.27 and earlier
Fixes for applicable vulnerabilities are included in IBM SDK, Java Technology Edition:
- 7.0.10.40
- 7.1.4.40
- 8.0.5.30
Refer to the table below to determine the IBM JDK level that contains the fix. Then follow the instructions below to perform the JDK installation.
| Db2 Release | Fixed IBM Release |
| V10.1.x | 7.0.10.40 or later |
| V10.5.x | 7.0.10.40 or later |
| V11.1.x | 8.0.5.30 or later |
Instructions for IBM JDK Installation can be found here:
http://www.ibm.com/support/docview.wss?uid=swg27050993
Workarounds and Mitigations
Get Notified about Future Security Bulletins
References
Acknowledgement
CVE-2018-12547 was reported to IBM by Eddie Zhu, BEIJING DBSEC TECHNOLOGY CO., LTD.
Change History
14 March 2019: Original Version Published
*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
Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.
Document Location
Worldwide
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Document Information
Modified date:
30 June 2019
UID
ibm10875132