Security Bulletin: IBM® Db2® is affected by vulnerabilities in the IBM® SDK, Java Technology Edition Quarterly Critical Patch Updates (CVE-2016-9840, CVE-2016-9841, CVE-2016-9842, CVE-2016-9843)

Summary

Db2 is affected by vulnerabilities in IBM® JDK. This only affects customers using Integrated Text Search.

Vulnerability Details

CVEID: CVE-2016-9840**
DESCRIPTION:** zlib is vulnerable to a denial of service, caused by an out-of-bounds pointer arithmetic in inftrees.c. By persuading a victim to open a specially crafted document, a remote attacker could exploit this vulnerability to cause a denial of service.
CVSS Base Score: 3.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/120508 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L)

CVEID: CVE-2016-9841**
DESCRIPTION:** zlib is vulnerable to a denial of service, caused by an out-of-bounds pointer arithmetic in inftrees.c. By persuading a victim to open a specially crafted document, a remote attacker could exploit this vulnerability to cause a denial of service.
CVSS Base Score: 3.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/120509 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L)

CVEID: CVE-2016-9842**
DESCRIPTION:** zlib is vulnerable to a denial of service, caused by an undefined left shift of negative number. By persuading a victim to open a specially crafted document, a remote attacker could exploit this vulnerability to cause a denial of service.
CVSS Base Score: 3.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/120510 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L)

CVEID: CVE-2016-9843**
DESCRIPTION:** zlib is vulnerable to a denial of service, caused by a big-endian out-of-bounds pointer. By persuading a victim to open a specially crafted document, a remote attacker could exploit this vulnerability to cause a denial of service.
CVSS Base Score: 3.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/120511 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L)

Affected Products and Versions

All fix pack levels of IBM Db2 V9.7, V10.1, V10.5, and V11.1 editions on all platforms are affected.

Remediation/Fixes

The recommended solution is to apply the appropriate fix for this vulnerability.

The fix for this vulnerability is in latest version of IBM JDK. Customers running any vulnerable fixpack level of an affected Program, V9.7, V10.1, V10.5 or V11.1 can download the latest version of IBM JDK from Fix Central

Affected IBM Releases:

• 6.0.16.41 and earlier
• 6.1.8.41 and earlier
• 7.0.10.1 and earlier
• 7.1.4.1 and earlier
• 8.0.4.2 and earlier

Fixed IBM Releases:

• 6.0.16.45
• 6.1.8.45
• 7.0.10.5
• 7.1.4.5
• 8.0.4.5

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.

Instructions for IBM JDK Installation can be found here:
<http://www-01.ibm.com/support/docview.wss?uid=swg27050993&gt;

Workarounds and Mitigations

None.