Security Bulletin
Summary
Multiple vulnerabilities have been identified in perl that is embedded in the IBM FSM. This fix addresses these vulnerabilities.
Vulnerability Details
CVEID: CVE-2016-1238
DESCRIPTION: Perl could allow a local attacker to gain elevated privileges on the system, caused by an error when loading optional modules. By loading code from the current working directory, an attacker could exploit this vulnerability to cause the target Perl application to load and execute arbitrary code on the target system with elevated privileges.
CVSS Base Score: 8.4
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/115425 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)
CVEID: CVE-2016-2381
DESCRIPTION: Perl could allow a remote attacker to bypass security restrictions, caused by improper handling of $ENV{"X"} variable. By using duplicate environment variables in envp, an attacker could exploit this vulnerability to bypass the taint protection mechanism.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/112139 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)
CVEID: CVE-2015-8853
DESCRIPTION: Perl is vulnerable to a denial of service, caused by the improper handling of illegal inputs. An attacker could exploit this vulnerability using regular expression on malformed UTF8 input to cause the application to enter into an infinite loop and consume all available CPU resources.
CVSS Base Score: 7.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/112536 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
Affected Products and Versions
Flex System Manager 1.3.4.x
Flex System Manager 1.3.3.x
Flex System Manager 1.3.2.x
Remediation/Fixes
IBM recommends updating the FSM using the instructions referenced in this table.
|
|
|
|
| Flex System Manager |
| IT17537 | Install fsmfix1.3.4.0_IT17534_IT17536_IT17537_IT17653 |
| Flex System Manager |
| IT17537 | Install fsmfix1.3.3.0_IT17534_IT17536_IT17537_IT17653 |
| Flex System Manager |
| IT17537 | Install fsmfix1.3.2.0_IT17534_IT17536_IT17537_IT17653 |
For a complete list of FSM security bulletins refer to this technote: http://www-01.ibm.com/support/docview.wss?uid=nas7797054ebc3d9857486258027006ce4a0&myns=purflex&mync=E&cm_sp=purflex-_-NULL-_-E
For 1.1.x.x, 1.2.x.x, 1.3.0.x and 1.3.1.x IBM recommends upgrading to a fixed, supported version/release of the product.
Workarounds and Mitigations
None
Get Notified about Future Security Bulletins
References
Change History
14 November 2016: Original version published
22 November 2016: Corrected CVE number in the Bulletin title
*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 6600, PSIRT 83972
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Document Information
Modified date:
17 June 2018
UID
isg3T1024470