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OpenAdvisories
Medium USN-5466-1 8 CVEs

linux, linux-aws, linux-aws-hwe, linux-azure, linux-azure-4.15, linux-gcp, linux-gcp-4.15, linux-hwe, linux-kvm, linux-oracle, linux-raspi2, linux-snapdragon vulnerabilities

Published Jun 8, 2022 · Updated Sep 14, 2026

Summary

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)

Aaron Adams discovered that the netfilter subsystem in the Linux kernel did
not properly handle the removal of stateful expressions 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-2022-1966)

It was discovered that the SCTP protocol implementation in the Linux kernel
did not properly verify VTAGs in some situations. A remote attacker could
possibly use this to cause a denial of service (connection disassociation).
(CVE-2021-3772)

It was discovered that the btrfs file system implementation in the Linux
kernel did not properly handle locking in certain error conditions. A local
attacker could use this to cause a denial of service (kernel deadlock).
(CVE-2021-4149)

David Bouman discovered that the netfilter subsystem in the Linux kernel
did not initialize memory in some situations. A local attacker could use
this to expose sensitive information (kernel memory). (CVE-2022-1016)

It was discovered that the virtual graphics memory manager implementation
in the Linux kernel was subject to a race condition, potentially leading to
an information leak. (CVE-2022-1419)

赵子轩 discovered that the 802.2 LLC type 2 driver in the Linux kernel did not
properly perform reference counting in some error conditions. A local
attacker could use this to cause a denial of service. (CVE-2022-28356)

It was discovered that the EMS CAN/USB interface implementation in the
Linux kernel contained a double-free vulnerability when handling certain
error conditions. A local attacker could use this to cause a denial of
service (memory exhaustion). (CVE-2022-28390)

Fixed packages 14

ReleasePackageFixed in
Ubuntu · 18.04 LTS 18.04:LTS linux 4.15.0-184.194
Ubuntu · 18.04 LTS 18.04:LTS linux-aws 4.15.0-1133.143
Ubuntu · 18.04 LTS 18.04:LTS linux-azure-4.15 4.15.0-1142.156
Ubuntu · 18.04 LTS 18.04:LTS linux-gcp-4.15 4.15.0-1127.142
Ubuntu · 18.04 LTS 18.04:LTS linux-kvm 4.15.0-1119.123
Ubuntu · 18.04 LTS 18.04:LTS linux-oracle 4.15.0-1098.108
Ubuntu · 18.04 LTS 18.04:LTS linux-raspi2 4.15.0-1114.122
Ubuntu · 18.04 LTS 18.04:LTS linux-snapdragon 4.15.0-1132.142
Ubuntu · Pro 14.04 LTS Pro:14.04:LTS linux-azure 4.15.0-1142.156~14.04.1
Ubuntu · Pro 16.04 LTS Pro:16.04:LTS linux-aws-hwe 4.15.0-1133.143~16.04.1
Ubuntu · Pro 16.04 LTS Pro:16.04:LTS linux-azure 4.15.0-1142.156~16.04.1
Ubuntu · Pro 16.04 LTS Pro:16.04:LTS linux-gcp 4.15.0-1127.142~16.04.1
Ubuntu · Pro 16.04 LTS Pro:16.04:LTS linux-hwe 4.15.0-184.194~16.04.1
Ubuntu · Pro 16.04 LTS Pro:16.04:LTS linux-oracle 4.15.0-1098.108~16.04.1

Vulnerabilities 8

References

  • report
    https://ubuntu.com/security/CVE-2021-3772
  • report
    https://ubuntu.com/security/CVE-2021-4149
  • report
    https://ubuntu.com/security/CVE-2022-1016
  • report
    https://ubuntu.com/security/CVE-2022-1419
  • report
    https://ubuntu.com/security/CVE-2022-1966
  • report
    https://ubuntu.com/security/CVE-2022-21499
  • report
    https://ubuntu.com/security/CVE-2022-28356
  • report
    https://ubuntu.com/security/CVE-2022-28390