IBM Dynamic System Analysis (DSA) Preboot has addressed the following vulnerabilities in bash.
Summary
IBM Dynamic System Analysis (DSA) Preboot has addressed the
following vulnerabilities in bash.
Vulnerability Details
CVEID: CVE-2014-6277
Description: GNU Bash could allow a remote
attacker to execute arbitrary code on the system, caused by an
incomplete fix related to the failure to properly parse function
definitions in the values of environment variables. An attacker
could exploit this vulnerability using attack vectors involving the
ForceCommand feature in OpenSSH sshd, the mod_cgi and mod_cgid
modules in the Apache HTTP Server to execute arbitrary code on the
system or cause a denial of service.
CVSS Base Score: 10
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/96686
for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:C/I:C/A:C)
CVEID: CVE-2014-6278
Description: GNU Bash could allow a remote
attacker to execute arbitrary code on the system, caused by an
incomplete fix related to the parsing of user scripts. An attacker
could exploit this vulnerability to execute arbitrary code on the
system or cause a denial of service.
CVSS Base Score: 10
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/96687
for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:C/I:C/A:C)
CVEID: CVE-2016-0634
Description: GNU Bash could allow a local
attacker to execute arbitrary code on the system, caused by an
error related to the expansion of the $HOSTNAME. By injecting the
hostname with malicious code, an attacker could exploit this
vulnerability to execute arbitrary code on the system.
CVSS Base Score: 4.9
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/121373
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:L/A:L)
CVEID: CVE-2016-7543
Description: GNU Bash could allow a local
attacker to execute arbitrary commands on the system. An attacker
could exploit this vulnerability using specially crafted SHELLOPTS
and PS4 variables to execute arbitrary commands on the system with
root privileges.
CVSS Base Score: 8.4
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/121372
for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
Affected products and versions
| Product |
Version |
| IBM Dynamic System Analysis (DSA) Preboot |
9.6 |
Remediation/Fixes
Firmware fix versions are available on Fix Central: http://www.ibm.com/support/fixcentral/
| Product |
Fix Version |
IBM Dynamic System Analysis (DSA) Preboot
(ibm_fw_dsa_dsyte2w-9.65) |
dsyte2w-9.65 |
Workarounds and Mitigations
None.
References
Related Information
IBM
Secure Engineering Web Portal
IBM Product Security
Incident Response Blog
Lenovo
Product Security Advisories
Acknowledgement
None.
Change History
21 November, 2017: 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.
References
On
*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.
BladeCenter:Operating system independent / None
System x:Operating system independent / None
PureFlex System and Flex System:Operating system independent / None
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