LSN-0074-1

Description

Kernel Live Patch Security Notice Elena Petrova discovered that the pin controller device tree implementation in the Linux kernel did not properly handle string references. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2020-0427) Andy Nguyen discovered that the Bluetooth A2MP implementation in the Linux kernel did not properly initialize memory in some situations. A physically proximate remote attacker could use this to expose sensitive information (kernel memory). (CVE-2020-12352) It was discovered that the GENEVE tunnel implementation in the Linux kernel when combined with IPSec did not properly select IP routes in some situations. An attacker could use this to expose sensitive information (unencrypted network traffic). (CVE-2020-25645) It was discovered that the LIO SCSI target implementation in the Linux kernel performed insufficient identifier checking in certain XCOPY requests. An attacker with access to at least one LUN in a multiple backstore environment could use this to expose sensitive information or modify data. (CVE-2020-28374)

Affected Systems

• ubuntu•linux

  all | < 4.4.0-262.296 | < 4.15.0-132.136 | < 5.4.0-62.70

• ubuntu•linux-aws

  all | < 4.4.0-1121.135 | < 5.4.0-1037.39

• ubuntu•linux-aws-fips

  all | < 4.15.0-2036.38

• ubuntu•linux-azure

  all | < 4.15.0-1106.118~16.04.1 | < 5.4.0-1039.41

• ubuntu•linux-azure-fips

  all | < 4.15.0-2018.21

• ubuntu•linux-fips

  all | < 4.4.0-1108.115 | < 4.15.0-1051.59

• ubuntu•linux-gcp

  all | < 5.4.0-1036.39

• ubuntu•linux-gkeop

  all | < 5.4.0-1009.10

• ubuntu•linux-gkeop-5.4

  all | < 5.4.0-1009.10~18.04.1

• ubuntu•linux-lts-xenial

  all | < 4.4.0-262.296~14.04.1

• ubuntu•linux-oem

  all | < 4.15.0-1103.114

References (5)

• https://ubuntu.com/security/notices/LSN-0074-1
• https://ubuntu.com/security/CVE-2020-0427
• https://ubuntu.com/security/CVE-2020-12352
• https://ubuntu.com/security/CVE-2020-25645
• https://ubuntu.com/security/CVE-2020-28374