Security Bulletin
Summary
Power Hardware Management Console is affected by security vulnerabilities in the Linux Kernel. Power Hardware Management Console has addressed the applicable CVEs.
Vulnerability Details
CVEID: CVE-2019-11478
DESCRIPTION: Linux Kernel is vulnerable to a denial of service, caused by an issue with fragmenting the TCP retransmission queue when processing TCP Selective Acknowledgement (SACK) capabilities. By sending specially-crafted SACKs requests, a remote attacker could exploit this vulnerability to cause an excess of system resource usage.
CVSS Base Score: 7.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/162664 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)
CVEID: CVE-2019-11477
DESCRIPTION: Linux Kernel is vulnerable to a denial of service, caused by an integer overflow when processing TCP Selective Acknowledgement (SACK) capabilities. By sending specially-crafted SACKs requests, a remote attacker could exploit this vulnerability to cause a kernel panic condition.
CVSS Base Score: 7.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/162662 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)
CVEID: CVE-2019-11479
DESCRIPTION: Linux Kernel is vulnerable to a denial of service, caused by a flaw when processing minimum segment size (MSS). By sending specially-crafted MSS traffic, a remote attacker could exploit this vulnerability to cause excess usage of system resources.
CVSS Base Score: 7.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/162665 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
Power HMC V8.7.0.0
Power HMC V9.1.910.0
Remediation/Fixes
Remediation/Fixes
The following fixes are available on IBM Fix Central at: http://www-933.ibm.com/support/fixcentral/
|
Product
|
VRMF
|
APAR
|
Remediation/Fix
|
|
Power HMC
|
V8.1.870.0 SP3 ppc
|
MB04223
|
|
|
Power HMC
|
V8.1.870.0 SP3 x86
|
MB04222
|
|
|
Power HMC
|
V9.1.930.0 SP1 ppc
|
MB04220
|
|
|
Power HMC
|
V9.1.930.0 SP1 x86
|
MB04219
|
Workarounds and Mitigations
None
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References
Change History
Initial Version: 29 August 2019
*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.
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Document Information
Modified date:
22 September 2021
UID
ibm11072250