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Security Bulletin: IBM® Db2® is affected by denial of service vulnerability in the Db2 Connect Server (CVE-2017-1519)

Security Bulletin


IBM Db2 contains a denial of service vulnerability. A remote user can cause disruption of service for Db2 Connect Server setup with a particular configuration using SSL and an alternate gateway setup.

Vulnerability Details

CVEID: CVE-2017-1519
DESCRIPTION: IBM Db2 contains a denial of service vulnerability. A remote user can cause disruption of service for DB2 Connect Server setup with a particular configuration.
CVSS Base Score: 5.9
CVSS Temporal Score: See for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H)

Affected Products and Versions

All fix pack levels of IBM Db2 V10.5 and V11.1 Connect Server editions on all platforms are affected.


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


Customers running any vulnerable fixpack level of an affected Program, V10.5 and V11.1, can download the special build containing the interim fix for this issue from Fix Central. These special builds are available based on the most recent fixpack level for each impacted release: V10.5 FP8 and V11.1.2.2 FP2. They can be applied to any affected fixpack level of the appropriate release to remediate this vulnerability.

Workarounds and Mitigations


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Change History

September 7, 2017: Original version published.
October 10, 2017: Updated V10.5 FP9 link.
July 11, 2018: Updated V11.1 link.

*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.


Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.

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Document Information

Modified date:
11 July 2018