Security Bulletin
Summary
An information leak flaw and buffer overflow flaw in the way the OpenSSH client roaming feature was implemented affects IBM Flex System FC3171 8Gb SAN Switch and SAN Pass-thru Firmware and QLogic Virtual Fabric Extension Module for IBM BladeCenter.
Vulnerability Details
Summary
An information leak flaw and buffer overflow flaw in the way the OpenSSH client roaming feature was implemented affects IBM Flex System FC3171 8Gb SAN Switch and SAN Pass-thru Firmware and QLogic Virtual Fabric Extension Module for IBM BladeCenter.
Vulnerability Details
CVE-ID: CVE-2016-0777
Description: OpenSSH could allow a remote attacker to obtain sensitive information, caused by a client information leak from using the roaming connection feature. By persuading a victim to connect to a malicious server, an attacker could exploit this vulnerability to retrieve private cryptographic keys or other sensitive information.
CVSS Base Score: 6.5
CVSS Temporal Score: See http://exchange.xforce.ibmcloud.com/vulnerabilities/109635
for current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N)
CVE-ID: CVE-2016-0778
Description: OpenSSH is vulnerable to a heap-based buffer overflow, caused by improper bounds checking by the packet_write_wait() and ssh_packet_write_wait() API functions when two non-default options: a ProxyCommand and either ForwardAgent or ForwardX11are used. By persuading a victim to connect to a malicious server, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause the application to crash.
CVSS Base Score: 5
CVSS Temporal Score: See http://exchange.xforce.ibmcloud.com/vulnerabilities/109636
for current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L)
Affected products and versions
| Product | Affected Version |
|---|---|
| IBM Flex System FC3171 8Gb SAN Switch IBM Flex System FC3171 8Gb SAN Pass-thru |
9.1 |
| QLogic Virtual Fabric Extension Module for IBM BladeCenter | 9.0 |
Remediation/Fixes
Firmware fix versions are available on Fix Central: http://www.ibm.com/support/fixcentral/
You should verify applying the fix does not cause any compatibility issues.
| Product | Fixed Version |
|---|---|
| IBM Flex System FC3171 8Gb SAN Switch IBM Flex System FC3171 8Gb SAN Pass-thru qlgc_fw_flex_9.1.8.01.00_anyos_noarch |
9.1.8.01.00 |
| QLogic Virtual Fabric Extension Module for IBM
BladeCenter qlgc_fw_bcsw_9.0.3.16.00_anyos_noarch |
9.0.3.16.00 |
After applying fix, IBM recommends that you regenerate your SSH keys as a precaution.
Workarounds and Mitigations
None.
References
Related Information
IBM
Secure Engineering Web Portal
IBM Product Security
Incident Response Blog
Acknowledgement
None.
Change History
06 July 2016: Original Version Published
* 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
According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES "AS IS" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.
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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.
Document Location
Worldwide
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Document Information
Modified date:
14 April 2023
UID
ibm1MIGR-5099414