Security Bulletin
Summary
IBM Communications Server for Windows has addressed the following vulnerabilities:
CVE-2018-1388 3RD PARTY GSKit V7 ROBOT Security Advisory
CVE-2016-0702 Side channel attack on modular exponentiation (CVE-2016-0702) in GSKit
CVE-2018-1447 GSKit and GSKit-Crypto Security Advisory December 2017 Part 1
Vulnerability Details
CVEID: CVE-2018-1388
DESCRIPTION: GSKit V7 may disclose side channel information via discrepencies between valid and invalid PKCS#1 padding.
CVSS Base Score: 9.1
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/138212 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N)
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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)
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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 Communications Server for Windows | Affected Versions |
| Communications Server for Windows | 6.4.0 |
| Communications Server for Windows | 6.1.3 |
Remediation/Fixes
Product | VRMF | APAR | Remediation / First Fix |
| Communications Server for Windows | 6.4.0.7 6.4.0.8 | JR59019 | (6.4.0.7 or lower) Link to FIX to update CSWIN to 6.4.0.8 with fix included |
| Communications Server for Windows | 6.1.3.5 | JR59029 | Link to FIX |
Workarounds and Mitigations
None
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References
*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.
Product Synonym
Communications Server commserver comm server sna cswin cswindows
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Document Information
Modified date:
02 August 2018
UID
swg22015200