IBM Db2 for Linux, UNIX and Windows could allow an unauthenticated attacker to cause a denial of service due to a hang in the SSL handshake response.
DESCRIPTION: IBM DB2 for Linux, UNIX and Windows (includes DB2 Connect Server) could allow an unauthenticated attacker to cause a denial of service due a hang in the SSL handshake response.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/193660 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)
Affected Products and Versions
All fix pack levels of IBM Db2 V9.7, V10.1, V10.5, V11.1, and V11.5 editions on all platforms are affected.
Customers running any vulnerable fixpack level of an affected Program 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: V9.7 FP11, V10.1 FP6, V10.5 FP11, V11.1 FP5, and V11.5.5. They can be applied to any affected fixpack level of the appropriate release to remediate this vulnerability.
Workarounds and Mitigations
Get Notified about Future Security Bulletins
30 Apr 2021: Corrected 11.5 version number
26 Apr 2021: Added urls for 10.1 Windows
1 Apr 2021: Replaced 11.5 urls with url to 18.104.22.168 fix pack
23 Mar 2021: Added urls for 11.5 Windows
19 Mar 2021: Removed url for 11.5 Windows
11 Mar 2021: Added url for v9.7 Solaris 64-bit, SPARC
10 Mar 2021: 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.
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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30 April 2021