LSN-0086-1
Vulnerability Summary
Timeline
Description
Kernel Live Patch Security Notice It was discovered that a race condition existed in the network scheduling subsystem of the Linux kernel, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.(CVE-2021-39713) Yiqi Sun and Kevin Wang discovered that the cgroups implementation in the Linux kernel did not properly restrict access to the cgroups v1 release_agent feature. A local attacker could use this to gain administrative privileges.(CVE-2022-0492) It was discovered that the network traffic control implementation in the Linux kernel contained a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.(CVE-2022-1055) Bing-Jhong Billy Jheng discovered that the io_uring subsystem in the Linux kernel contained in integer overflow. A local attacker could use this to cause a denial of service (system crash) or execute arbitrary code.(CVE-2022-1116) It was discovered that the Linux kernel did not properly restrict access to the kernel debugger when booted in secure boot environments. A privileged attacker could use this to bypass UEFI Secure Boot restrictions.(CVE-2022-21499) 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
all | < 4.4.0-227.261 | < 4.15.0-180.189 | < 5.4.0-117.132 | < 5.15.0-37.39
- ubuntu•linux-aws
all | < 4.4.0-1143.158 | < 4.15.0-1130.139 | < 5.4.0-1078.84
- ubuntu•linux-aws-5.4
all | < 5.4.0-1078.84~18.04.1
- ubuntu•linux-aws-hwe
all | < 4.15.0-1130.139~16.04.1
- ubuntu•linux-azure
all | < 4.15.0-1139.152~16.04.1 | < 5.4.0-1083.87
- ubuntu•linux-azure-4.15
all | < 4.15.0-1139.152
- ubuntu•linux-azure-5.4
all | < 5.4.0-1083.87~18.04.1
- ubuntu•linux-gcp
all | < 4.15.0-1124.138~16.04.1 | < 5.4.0-1078.84 | < 5.15.0-1008.12
- ubuntu•linux-gcp-4.15
all | < 4.15.0-1124.138
- ubuntu•linux-gcp-5.4
all | < 5.4.0-1078.84~18.04.1
- ubuntu•linux-gke
all | < 5.4.0-1074.79 | < 5.15.0-1008.10
- ubuntu•linux-gke-4.15
all
- ubuntu•linux-gke-5.4
all | < 5.4.0-1074.79~18.04.1
- ubuntu•linux-gkeop
all | < 5.4.0-1046.48
- ubuntu•linux-gkeop-5.4
all | < 5.4.0-1046.48~18.04.1
- ubuntu•linux-hwe
all | < 4.15.0-180.189~16.04.1
- ubuntu•linux-hwe-5.4
all | < 5.4.0-117.132~18.04.1
- ubuntu•linux-ibm
all | < 5.4.0-1026.29 | < 5.15.0-1007.8
- ubuntu•linux-ibm-5.4
all | < 5.4.0-1028.32~18.04.1
- ubuntu•linux-lowlatency
all | < 5.15.0-37.39
- ubuntu•linux-lts-xenial
all | < 4.4.0-227.261~14.04.1
- ubuntu•linux-oem
all
References (8)
- https://ubuntu.com/security/notices/LSN-0086-1
- https://ubuntu.com/security/CVE-2021-39713
- https://ubuntu.com/security/CVE-2022-0492
- https://ubuntu.com/security/CVE-2022-1055
- https://ubuntu.com/security/CVE-2022-1116
- https://ubuntu.com/security/CVE-2022-21499
- https://ubuntu.com/security/CVE-2022-29581
- https://ubuntu.com/security/CVE-2022-30594