IBM74EAFD7B0962A60C567678F687DB8CFD93B9A7D941506413541319718452D8D0Security Bulletin: Vulnerability in libxml2 affects IBM Flex System Networking Switch Products (CVE-2017-8872)
9.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
6.4 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:N/A:P
Summary
IBM Flex System Networking Switch Products have addressed the following vulnerability in libxml2.
Vulnerability Details
Summary
IBM Flex System Networking Switch Products have addressed the following vulnerability in libxml2.
Vulnerability Details:
CVEID: CVE-2017-8872
Description: libxml2 is vulnerable to a buffer overflow, caused by a a buffer-over-read flaw in the htmlParseTryOrFinish function in HTMLparser.c. By sending a specially-crafted request, a local attacker could overflow a buffer and cause a denial of service condition or obtain sensitive information on the system.
CVSS Base Score: 5.9
CVSS Temporal Score: See <https://exchange.xforce.ibmcloud.com/vulnerabilities/125890> for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)
Affected Products and Versions
| Product | Affected Version |
|---|---|
| IBM Flex System Fabric EN4093R 10Gb Scalable Switch | 7.8 |
| IBM Flex System Fabric CN4093 10Gb Converged Scalable Switch | 7.8 |
| IBM Flex System Fabric SI4093 System Interconnect Module | 7.8 |
| IBM Flex System EN2092 1Gb Ethernet Scalable Switch | 7.8 |
Remediation/Fixes:
Firmware fix versions are available on Fix Central:
<http://www.ibm.com/support/fixcentral/>.
| Product | Fix Version |
|---|---|
| IBM Flex System Fabric EN4093R 10Gb Scalable Switch | |
| (ibm_fw_scsw_en4093r-7.8.18.0_anyos_noarch) | 7.8.18.0 |
| IBM Flex System Fabric CN4093 10Gb Converged Scalable Switch | |
| (ibm_fw_scsw_cn4093-7.8.18.0_anyos_noarch) | 7.8.18.0 |
| IBM Flex System Fabric SI4093 System Interconnect Module | |
| (ibm_fw_scsw_si4093-7.8.18.0_anyos_noarch) | 7.8.18.0 |
| IBM Flex System EN2092 1Gb Ethernet Scalable Switch | |
| (ibm_fw_scsw_en2092-7.8.18.0_anyos_noarch) | 7.8.18.0 |
Workaround(s) & Mitigation(s):
None
References:
Related Information:
IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog
Lenovo Product Security Advisories
Acknowledgement
None
Change History
17 November 2017: Original Copy 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
9.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
6.4 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:N/A:P