Security Bulletin
Summary
IBM Security Directory Server has addressed the following vulnerabilities caused by issues in GSKit.
Vulnerability Details
CVEID:
CVE-2018-1427
DESCRIPTION: IBM GSKit contains several enviornment variables that a local attacker could overflow and cause a denial of service.
CVSS Base Score: 6.2
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/139072
for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
CVEID:
CVE-2018-1426
DESCRIPTION: IBM GSKit duplicates the PRNG state across fork() system calls when multiple ICC instances are loaded which could result in duplicate Session IDs and a risk of duplicate key material.
CVSS Base Score: 7.4
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/139071
for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N)
CVEID:
CVE-2016-0702
DESCRIPTION: OpenSSL could allow a local attacker to obtain sensitive information, caused by a side-channel attack against a system based on the Intel Sandy-Bridge microarchitecture. An attacker could exploit this vulnerability to recover RSA keys.
CVSS Base Score: 2.9
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/111144
for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N)
CVEID:
CVE-2018-1447
DESCRIPTION: The GSKit CMS KDB logic fails to salt the hash function resulting in weaker than expected protection of passwords. A weak password may be recovered. Note: After update the customer should change password to ensure the new password is stored more securely. Products should encourage customers to take this step as a high priority action.
CVSS Base Score: 5.1
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/139972
for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N)
Affected Products and Versions
| Affected IBM Security Directory Server | Affected SDS Versions | Affected GSKit Versions |
|---|---|---|
| IBM Tivoli Directory Server | 6.2 - 6.2.0.55, 6.3 - 6.3.0.48 | 7.0.5.14 and lower |
| IBM Security Directory Server | 6.3.1 - 6.3.1.23, 6.4 - 6.4.0.15 | 8.0.50.85 and lower |
Remediation/Fixes
| Affected IBM Security Directory Server | VRMF | Updated GSKit Version | Remediation |
|---|---|---|---|
| IBM Tivoli Directory Server | 6.2 - 6.2.0.55 | 7.0.5.15 | 6.2.0.56-ISS-ITDS-IF0056 |
| IBM Tivoli Directory Server | 6.3 - 6.3.0.48 | 8.0.50.89 | 6.3.0.49-ISS-ITDS-IF0049 |
| IBM Security Directory Server | 6.3.1 - 6.3.1.23 | 8.0.50.89 | 6.3.1.24-ISS-ISDS-IF0024 |
| IBM Security Directory Server | 6.4 - 6.4.0.15 | 8.0.50.89 | 6.4.0.16-ISS-ISDS-IF0016 |
Get Notified about Future Security Bulletins
References
Change History
25 September 2018
*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.
Internal Use Only
Advisory ID: 11295, 10679, 4990
Product ID: 111780, 108757, 109045
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Document Information
Modified date:
15 February 2019
UID
ibm10718847