Security Bulletin: IBM Flex System switch firmware products are affected by vulnerabilities in the Kernel

Summary

IBM Flex System switch firmware products have addressed the following Kernel vulnerabilities.

Vulnerability Details

CVEID:CVE-2020-13974
**DESCRIPTION:**Linux Kernel could allow a local attacker to execute arbitrary code on the system, caused by an integer overflow in the drivers/tty/vt/keyboard.c. By sending a specially crafted request, an attacker could exploit this vulnerability to execute arbitrary code on the system.
CVSS Base score: 8.4
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/183251 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

CVEID:CVE-2020-10732
**DESCRIPTION:**Linux Kernel could allow a local authenticated attacker to obtain sensitive information, caused by a flaw in the implementation of Userspace core dumps. By sending a specially crafted request, an attacker could exploit this vulnerability to obtain sensitive information or cause a program to crash.
CVSS Base score: 3.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/181554 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N)

CVEID:CVE-2020-14314
**DESCRIPTION:**Linux Kernel is vulnerable to a denial of service, caused by a memory out-of-bounds read flaw. By sending a specially crafted request, a local attacker could exploit this vulnerability to cause the system to crash.
CVSS Base score: 4
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/188395 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)

CVEID:CVE-2020-12770
**DESCRIPTION:**Linux Kernel is vulnerable to a denial of service, caused by an issue with sg_write lacks an sg_remove_request call in a certain failure case. By sending a specially-crafted request, a local attacker could exploit this vulnerability to cause a panic.
CVSS Base score: 6.2
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/181750 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)

Affected Products and Versions

Remediation/Fixes

Firmware fix versions are available on Fix Central: <http://www.ibm.com/support/fixcentral&gt;

IBM Flex System EN2092 1Gb Ethernet Scalable Switch firmware

(ibm_fw_scsw_en2092-7.8.27.0_anyos_noarch)

| 7.8.27.0

IBM Flex System Fabric SI4093 System Interconnect Module firmware

(ibm_fw_scsw_si4093-7.8.27.0_anyos_noarch)

| 7.8.27.0

IBM Flex System Fabric EN4093/EN4093R 10Gb Scalable Switch firmware

(ibm_fw_scsw_en4093r-7.8.27.0_anyos_noarch)

| 7.8.27.0

IBM Flex System CN4093 10Gb Converged Scalable Switch firmware

(ibm_fw_scsw_cn4093-7.8.27.0_anyos_noarch)

| 7.8.27.0

Workarounds and Mitigations

None