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ibmIBM06328F4C69F8C4130028C8D210DD30DFD1A6EBD09516664D42030A36665F14C0
HistoryJun 16, 2018 - 9:17 p.m.

Security Bulletin: IBM Security Directory Server CPU utilization (CVE-2014-0963)

2018-06-1621:17:40
www.ibm.com
5

7.1 High

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:N/AC:M/Au:N/C:N/I:N/A:C

Summary

IBM Security Directory Server is affected by a problem related to the SSL implementation which, under very specific conditions, can cause CPU utilization to rapidly increase.

Vulnerability Details

CVE ID:
CVE-2014-0963

DESCRIPTION:
IBM Security Directory Server is affected by a problem with the handling of certain SSL messages. The TLS implementation can, under very specific conditions, cause CPU utilization to rapidly increase. The situation occurs only in a certain error case that causes a single thread to begin looping. If this happens multiple times, more threads will begin to loop and an increase in CPU utilization will be seen. This increase could ultimately result in CPU exhaustion and unresponsiveness of the IBM Security Directory Server and other software running on the affected system.

This issue can affect the availability of the system, but does not impact system confidentiality or integrity. This vulnerability can be remotely exploited, authentication is not required and the exploit is moderately complex.

To determine if your systems are being affected by this issue, you can monitor the CPU utilization for IBM Security Directory Server instances.

CVSS Base Score: 7.1
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/92844 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:M/Au:N/C:N/I:N/A:C)

Affected Products and Versions

All versions of IBM Security Directory Server (ISDS): 6.1.0, 6.2.0, 6.3.0, 6.3.1

Remediation/Fixes

IBM has provided patches for all affected versions. Please install the GSKit package included with the patch.

Affected Version GSKit Release Fix
ISDS 6.1.0 7.0.4.50 6.1.0.61-ISS-ITDS
ISDS 6.2.0 7.0.4.50 6.2.0.36-ISS-ITDS
ISDS 6.3.0 8.0.50.20 6.3.0.30-ISS-ITDS
ISDS 6.3.1 8.0.50.20 6.3.1.2-ISS-ISDS

Workarounds and Mitigations

Monitor CPU utilization of your Program Name instances. If utilization becomes abnormally high, stop and restart the affected instance.

7.1 High

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:N/AC:M/Au:N/C:N/I:N/A:C

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