Ubuntu Security Notice 4367-2 - USN-4367-1 fixed vulnerabilities in the 5.4 Linux kernel. Unfortunately, that update introduced a regression in overlayfs. This update corrects the problem. It was discovered that the btrfs implementation in the Linux kernel did not properly detect that a block was marked dirty in some situations. An attacker could use this to specially craft a file system image that, when unmounted, could cause a denial of service. Various other issues were also addressed.
a7ff44eff3672e7d5da03bfb9c8127feUbuntu Security Notice 4369-2 - USN-4369-1 fixed vulnerabilities in the 5.3 Linux kernel. Unfortunately, that update introduced a regression in overlayfs. This update corrects the problem. It was discovered that the btrfs implementation in the Linux kernel did not properly detect that a block was marked dirty in some situations. An attacker could use this to specially craft a file system image that, when unmounted, could cause a denial of service. Various other issues were also addressed.
fd0df16897a8e91cd82dcaa6c77e3506Red Hat Security Advisory 2020-2291-01 - This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of a running kernel. Issues addressed include null pointer and use-after-free vulnerabilities.
472caeedf401aef3dd265d2a8ede4040Red Hat Security Advisory 2020-2289-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include double free, heap overflow, memory leak, null pointer, and use-after-free vulnerabilities.
192d4b68b4a8fb78b468d7d34c28af96Red Hat Security Advisory 2020-2277-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include double free, null pointer, and use-after-free vulnerabilities.
7df30500995ca1ce24314048e8bdc144Red Hat Security Advisory 2020-2285-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include double free, null pointer, and use-after-free vulnerabilities.
3740eefc2583118a277b2e5a0270dd07Ubuntu Security Notice 4369-1 - It was discovered that the btrfs implementation in the Linux kernel did not properly detect that a block was marked dirty in some situations. An attacker could use this to specially craft a file system image that, when unmounted, could cause a denial of service. Tristan Madani discovered that the file locking implementation in the Linux kernel contained a race condition. A local attacker could possibly use this to cause a denial of service or expose sensitive information. Various other issues were also addressed.
6d0bd201f6f7817bc3279a320a6733e2Red Hat Security Advisory 2020-2242-01 - The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Issues addressed include double free, null pointer, and use-after-free vulnerabilities.
cc7f5ce71eb64ea455b5036d5a63727dUbuntu Security Notice 4367-1 - It was discovered that the btrfs implementation in the Linux kernel did not properly detect that a block was marked dirty in some situations. An attacker could use this to specially craft a file system image that, when unmounted, could cause a denial of service. It was discovered that the linux kernel did not properly validate certain mount options to the tmpfs virtual memory file system. A local attacker with the ability to specify mount options could use this to cause a denial of service. Various other issues were also addressed.
6bc265d53b8c9946b979ffba8c1b9846Ubuntu Security Notice 4368-1 - Tristan Madani discovered that the file locking implementation in the Linux kernel contained a race condition. A local attacker could possibly use this to cause a denial of service or expose sensitive information. It was discovered that the Serial CAN interface driver in the Linux kernel did not properly initialize data. A local attacker could use this to expose sensitive information. Various other issues were also addressed.
b302dbba64749b9c4db508af02be0333Red Hat Security Advisory 2020-2214-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include double free, null pointer, and use-after-free vulnerabilities.
76989286c92162d66924a0b1716db57dRed Hat Security Advisory 2020-2199-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include null pointer, privilege escalation, and use-after-free vulnerabilities.
880368285866bf500f86dd36404cc148Red Hat Security Advisory 2020-2203-01 - This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of a running kernel. Issues addressed include null pointer and use-after-free vulnerabilities.
5b828468a7819d2abb23e498a8c2dd9eUbuntu Security Notice 4364-1 - It was discovered that the ADIS16400 IIO IMU Driver for the Linux kernel did not properly deallocate memory in certain error conditions. A local attacker could use this to cause a denial of service. It was discovered that the vhost net driver in the Linux kernel contained a stack buffer overflow. A local attacker with the ability to perform ioctl calls on /dev/vhost-net could use this to cause a denial of service. Various other issues were also addressed.
06e1ea8cf35c10383a5778a3325e0109Ubuntu Security Notice 4363-1 - It was discovered that the Serial CAN interface driver in the Linux kernel did not properly initialize data. A local attacker could use this to expose sensitive information. It was discovered that the linux kernel did not properly validate certain mount options to the tmpfs virtual memory file system. A local attacker with the ability to specify mount options could use this to cause a denial of service. Various other issues were also addressed.
48a0a77413a79e658053d75f2fdc48eeRed Hat Security Advisory 2020-2171-01 - The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Issues addressed include a null pointer vulnerability.
731c2063b75951642f69d27fc4cb8f99Red Hat Security Advisory 2020-2126-01 - Kernel-based Virtual Machine is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm packages provide the user-space component for running virtual machines that use KVM. Issues addressed include a buffer overflow vulnerability.
43c0d44966000ebfda0dd34475467bbbRed Hat Security Advisory 2020-2125-01 - This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of a running kernel. Issues addressed include a null pointer vulnerability.
ff278943352343015ef11e0789f561f5Red Hat Security Advisory 2020-2082-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include double free, memory leak, null pointer, and use-after-free vulnerabilities.
969fa949c25645a5a7328b59a9ba8ec1Red Hat Security Advisory 2020-2085-01 - The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Issues addressed include double free, null pointer, and use-after-free vulnerabilities.
fb45d9224e85ded8bf9bf110926bdba1Red Hat Security Advisory 2020-2103-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include a null pointer vulnerability.
6370d7607d60740cc293f185a7f49309Red Hat Security Advisory 2020-2102-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include null pointer and privilege escalation vulnerabilities.
6bee4ede729babfed9ef8a70eacbe4a1Red Hat Security Advisory 2020-2104-01 - The kernel-alt packages provide the Linux kernel version 4.x. Issues addressed include denial of service, double free, null pointer, out of bounds read, out of bounds write, and use-after-free vulnerabilities.
02c92544a54421df4b77e27dce41c5d0Red Hat Security Advisory 2020-2065-01 - Kernel-based Virtual Machine is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm-ma packages provide the user-space component for running virtual machines that use KVM on the IBM z Systems, IBM Power, and 64-bit ARM architectures. Issues addressed include a buffer overflow vulnerability.
39e8f00d8af29f574e785c1f0f57564fRed Hat Security Advisory 2020-1984-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include a memory leak vulnerability.
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