## Releases
* Ubuntu 16.04 ESM
* Ubuntu 14.04 ESM
## Packages
* linux \- Linux kernel
* linux-aws \- Linux kernel for Amazon Web Services (AWS) systems
* linux-kvm \- Linux kernel for cloud environments
* linux-lts-xenial \- Linux hardware enablement kernel from Xenial for Trusty
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)
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)
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Linux kernel vulnerabilities
