Security Bulletin
Summary
PowerKVM is affected by vulnerabilities in the Linux kernel . IBM has now addressed these vulnerabilities.
Vulnerability Details
CVEID:
CVE-2018-10675
DESCRIPTION: Linux Kernel is vulnerable to a denial of service, caused by a use-after-free in the do_get_mempolicy function in mm/mempolicy.c. By using specially crafted system calls, a local attacker could exploit this vulnerability to cause a denial of service.
CVSS Base Score: 6.2
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/142895
for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
CVEID:
CVE-2018-7566
DESCRIPTION: Linux Kernel is vulnerable to a buffer overflow, caused by improper bounds checking by user-supplied input. By using an SNDRV_SEQ_IOCTL_SET_CLIENT_POOL ioctl write operation to /dev/snd/seq, a local authenticated attacker could overflow a buffer and execute arbitrary code on the system.
CVSS Base Score: 7.8
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/141112
for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
CVEID:
CVE-2017-13215
DESCRIPTION: Google Android could allow a remote attacker to gain elevated privileges on the system, caused by a flaw in the Upstream kernel skcipher. By persuading a victim to open a specially-crafted application, a remote attacker could exploit this vulnerability to execute arbitrary code as a privileged process.
CVSS Base Score: 7.8
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/137560
for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
Affected Products and Versions
PowerKVM 3.1
Remediation/Fixes
Customers can update PowerKVM systems by using "yum update".
Fix images are made available via Fix Central. See https://ibm.biz/BdHggw . This issue is addressed starting with v3.1.0.2 update 14.
Workarounds and Mitigations
none
Get Notified about Future Security Bulletins
References
Change History
7 February 2019 - 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:
12 February 2019
UID
ibm10870832