Security Bulletin: IBM MQ Appliance is affected by multiple kernel vulnerabilities

Summary

IBM MQ Appliance has resolved multiple kernel vulnerabilities.

Vulnerability Details

CVEID:CVE-2017-18595
**DESCRIPTION:**Linux Kernel is vulnerable to a denial of service, caused by a double-free in the allocate_trace_buffer function of kernel/trace/trace.c.
CVSS Base score: 5.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/169655 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)

CVEID:CVE-2018-19985
**DESCRIPTION:**Linux Kernel is vulnerable to a denial of service, caused by an out-of-bounds read in the hso_get_config_data function in drivers/net/usb/hso.c. A local attacker could exploit this vulnerability to cause the system to crash.
CVSS Base score: 4.6
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/160204 for the current score.
CVSS Vector: (CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

CVEID:CVE-2018-20169
**DESCRIPTION:**Linux Kernel is vulnerable to a denial of service, caused by improper size validation by the __usb_get_extra_descriptor function in drivers/usb/core/usb.c in the USB subsystem. By sending a specially-crafted request, a local attacker could exploit this vulnerability to cause a denial of service condition.
CVSS Base score: 6.2
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/154367 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

CVEID:CVE-2019-19527
**DESCRIPTION:**Linux Kernel is vulnerable to a denial of service, caused by a use-after-free condition in drivers/hid/usbhid/hiddev.c. By connecting a specially-crafted USB device, an attacker could exploit this vulnerability to cause a kernel panic.
CVSS Base score: 4.2
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/172524 for the current score.
CVSS Vector: (CVSS:3.0/AV:P/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H)

Affected Products and Versions

Remediation/Fixes

This vulnerability is addressed under IT40779

IBM strongly recommends addressing the vulnerability now.

IBM MQ Appliance version 9.2 LTS

Apply 9.2.0.6 fixpack, or later firmware.

IBM MQ Appliance version 9.2 CD

Upgrade to 9.2.5 CD CSU01, or later firmware.

Workarounds and Mitigations

None