USN-5443-1

Description

linux, linux-aws, linux-aws-hwe, linux-aws-5.13, linux-azure, linux-azure-5.13, linux-azure-4.15, linux-gcp, linux-gcp-4.15, linux-gke, linux-hwe, linux-hwe-5.13, linux-ibm, linux-kvm, linux-lowlatency, linux-oracle, linux-raspi, linux-raspi2, linux-snapdragon vulnerabilities Kyle Zeng discovered that the Network Queuing and Scheduling subsystem of the Linux kernel did not properly perform reference counting in some situations, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2022-29581) Jann Horn discovered that the Linux kernel did not properly enforce seccomp restrictions in some situations. A local attacker could use this to bypass intended seccomp sandbox restrictions. (CVE-2022-30594)

Affected Systems

• ubuntu•linux

  < 4.15.0-180.189 | < 5.15.0-33.34

• ubuntu•linux-aws

  < 4.15.0-1130.139 | < 5.15.0-1008.10

• ubuntu•linux-aws-5.13

  < 5.13.0-1025.27~20.04.1

• ubuntu•linux-aws-hwe

  < 4.15.0-1130.139~16.04.1

• ubuntu•linux-azure

  < 4.15.0-1139.152~14.04.1 | < 4.15.0-1139.152~16.04.1 | < 5.15.0-1007.8

• ubuntu•linux-azure-4.15

  < 4.15.0-1139.152

• ubuntu•linux-azure-5.13

  < 5.13.0-1025.29~20.04.1

• ubuntu•linux-gcp

  < 4.15.0-1124.138~16.04.1 | < 5.15.0-1005.8

• ubuntu•linux-gcp-4.15

  < 4.15.0-1124.138

• ubuntu•linux-gke

  < 5.15.0-1005.6

• ubuntu•linux-hwe

  < 4.15.0-180.189~16.04.1

• ubuntu•linux-hwe-5.13

  < 5.13.0-44.49~20.04.1

• ubuntu•linux-ibm

  < 5.15.0-1004.4

• ubuntu•linux-kvm

  < 4.15.0-1116.119 | < 5.15.0-1007.7

• ubuntu•linux-lowlatency

  < 5.15.0-33.34

• ubuntu•linux-oracle

  < 4.15.0-1095.104~16.04.1 | < 4.15.0-1095.104 | < 5.15.0-1006.8

• ubuntu•linux-raspi

  < 5.15.0-1008.8

• ubuntu•linux-raspi2

  < 4.15.0-1111.118

• ubuntu•linux-snapdragon

  < 4.15.0-1129.138

References (3)

• https://ubuntu.com/security/notices/USN-5443-1
• https://ubuntu.com/security/CVE-2022-29581
• https://ubuntu.com/security/CVE-2022-30594