Security Bulletin
Summary
PowerKVM is affected by vulnerabilities in OpenvSwitch. IBM has now addressed these vulnerabilities.
Vulnerability Details
CVEID: CVE-2017-9265
DESCRIPTION: Open vSwitch is vulnerable to a buffer overflow, caused by improper bounds checking by the ofputil_pull_ofp15_group_mod function in lib/ofp-util.c. By sending a specially-crafted OpenFlow message, a remote attacker could overflow a buffer and execute arbitrary code on the system.
CVSS Base Score: 7.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/127189 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)
CVEID: CVE-2017-9263
DESCRIPTION: Open vSwitch is vulnerable to a denial of service, caused by a flaw in the ofp_print_role_status_message function in lib/ofp-print.c. By sending a specially-crafted role status message, a remote attacker could exploit this vulnerability to cause a denial of service.
CVSS Base Score: 6.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/127187 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
CVEID: CVE-2017-9214
DESCRIPTION: Open vSwitch is vulnerable to a buffer over-read, caused by an unsigned integer underflow in the ofputil_pull_queue_get_config_reply10 function in lib/ofp-util.c. By sending a specially crafted OFP message, a remote attacker could overflow a buffer and execute arbitrary code on the system.
CVSS Base Score: 7.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/126418 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)
CVEID: CVE-2017-9264
DESCRIPTION: Open vSwitch is vulnerable to a buffer overflow, caused by improper bounds checking by the extract_l3_ipv6, extract_l4_tcp and extract_l4_udp functions in lib/conntrack.c. By sending specially-crafted packets, a remote attacker could overflow a buffer and execute arbitrary code on the system.
CVSS Base Score: 7.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/127188 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)
Affected Products and Versions
PowerKVM v3.1
Remediation/Fixes
Customers can update PowerKVM systems by using "yum update".
Fix images are made available via Fix Central. For version 3.1, see https://ibm.biz/BdHggw. This issue is addressed starting with v3.1.0.2 update 11.
Workarounds and Mitigations
none
Get Notified about Future Security Bulletins
References
Change History
19 October 2017 - Initial Version
*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:
17 June 2018
UID
isg3T1026032