IBMF7E0940DE143AEF36D84934E668B988688EBDC84083DB4A080107C29CD538376Security Bulletin: A tcp vulnerability in Linux Kernel affects IBM Integrated Management Module II (IMM2) for System x, Flex and BladeCenter Systems (CVE-2017-14106)
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:N/I:N/A:C
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
5.1%
Summary
IBM Integrated Management Module II (IMM2) for System x, Flex and BladeCenter Systems have addressed the following tcp vulnerability in Linux Kernel.
Vulnerability Details
Summary
IBM Integrated Management Module II (IMM2) for System x, Flex and BladeCenter Systems have addressed the following tcp vulnerability in Linux Kernel.
Vulnerability Details
CVEID: CVE-2017-14106
Description: Linux Kernel is vulnerable to a denial of service, caused by a divide-by-zero flaw in the tcp_disconnect function in net/ipv4/tcp.c. By triggering a disconnect within a certain tcp_recvmsg code path, a local authenticated attacker could exploit this vulnerability to cause the system to crash.
CVSS Base Score: 5.5
CVSS Temporal Score: See <https://exchange.xforce.ibmcloud.com/vulnerabilities/131363> for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
Affected products and versions
| Product | Version |
|---|---|
| IBM Integrated Management Module II (IMM2) for System x and Flex Systems | 1AOO |
| IBM Integrated Management Module II (IMM2) for BladeCenter Systems | 1AOO |
Remediation/Fixes
Firmware fix versions are available on Fix Central: <http://www.ibm.com/support/fixcentral/>
| Product | Fixed Version |
|---|---|
| IBM Integrated Management Module II (IMM2) for System x and Flex Systems | |
| ibm_fw_imm2_1aoo80g-6.40_anyos_noarch | 1AOO80G-6.40 |
| IBM Integrated Management Module II (IMM2) for BladeCenter Systems | |
| ibm_fw_imm2_1aoo80g-6.40-bc_anyos_noarch | 1AOO80G-6.40_bc |
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
30 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.
Related
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:N/I:N/A:C
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
5.1%