Red Hat Security Advisory 2021-2355-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include buffer overflow, integer overflow, and out of bounds write vulnerabilities.
01084a22e64e6a3653aac30eb1fbffffRed Hat Security Advisory 2021-2356-01 - Nettle is a cryptographic library that is designed to fit easily in almost any context: In crypto toolkits for object-oriented languages, such as C++, Python, or Pike, in applications like LSH or GNUPG, or even in kernel space.
b579860c52831a6a23c85b5526df8b4aUbuntu Security Notice 4985-1 - It was discovered that some Intel processors may not properly invalidate cache entries used by Intel Virtualization Technology for Directed I/O. This may allow a local user to perform a privilege escalation attack. Joseph Nuzman discovered that some Intel processors may not properly apply EIBRS mitigations and hence may allow unauthorized memory reads via sidechannel attacks. A local attacker could use this to expose sensitive information, including kernel memory. Various other issues were also addressed.
beb2b2abe71fcc95119548688bead874Red Hat Security Advisory 2021-2316-01 - The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Issues addressed include integer overflow, null pointer, and use-after-free vulnerabilities.
b8ec174de49a5fae5dcb14fbd3d50fd3Red Hat Security Advisory 2021-2322-01 - 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 an out of bounds access vulnerability.
dd2b7671683b518a1e1f28462c1bc840Red Hat Security Advisory 2021-2314-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include integer overflow, null pointer, and use-after-free vulnerabilities.
2b5f18c2f2f0ad66a02e3c71019215beRed Hat Security Advisory 2021-2293-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include an integer overflow vulnerability.
35bf05ed33ab226dc02bf5b478d38c14Red Hat Security Advisory 2021-2285-01 - 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 use-after-free vulnerability.
5c20cc68cae8c7e269ed34d94c723796Red Hat Security Advisory 2021-2280-01 - Nettle is a cryptographic library that is designed to fit easily in almost any context: In crypto toolkits for object-oriented languages, such as C++, Python, or Pike, in applications like LSH or GNUPG, or even in kernel space.
36da3cdb92266968325c22c90f9d98dbUbuntu Security Notice 4984-1 - Jan Beulich discovered that the Xen netback backend in the Linux kernel did not properly handle certain error conditions under paravirtualization. An attacker in a guest VM could possibly use this to cause a denial of service. It was discovered that the Realtek RTL8188EU Wireless device driver in the Linux kernel did not properly validate ssid lengths in some situations. An attacker could use this to cause a denial of service. Various other issues were also addressed.
ef9bb22f3bfa67465b7e2c92a0636737Ubuntu Security Notice 4983-1 - Piotr Krysiuk discovered that the eBPF implementation in the Linux kernel did not properly enforce limits for pointer operations. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Piotr Krysiuk and Benedict Schlueter discovered that the eBPF implementation in the Linux kernel performed out of bounds speculation on pointer arithmetic. A local attacker could use this to expose sensitive information. Various other issues were also addressed.
18944e6d71f08e1228485e41148d89d4Ubuntu Security Notice 4982-1 - Kiyin discovered that the NFC LLCP protocol implementation in the Linux kernel contained a reference counting error. A local attacker could use this to cause a denial of service. Kiyin discovered that the NFC LLCP protocol implementation in the Linux kernel did not properly deallocate memory in certain error situations. A local attacker could use this to cause a denial of service. Various other issues were also addressed.
48fb2674411f417202ce07ced0925537Ubuntu Security Notice 4979-1 - Kiyin discovered that the NFC LLCP protocol implementation in the Linux kernel contained a reference counting error. A local attacker could use this to cause a denial of service. Kiyin discovered that the NFC LLCP protocol implementation in the Linux kernel did not properly deallocate memory in certain error situations. A local attacker could use this to cause a denial of service. Various other issues were also addressed.
3034b897d2745e89ae5688e5b2c226c9Ubuntu Security Notice 4977-1 - Kiyin discovered that the NFC LLCP protocol implementation in the Linux kernel contained a reference counting error. A local attacker could use this to cause a denial of service. Kiyin discovered that the NFC LLCP protocol implementation in the Linux kernel did not properly deallocate memory in certain error situations. A local attacker could use this to cause a denial of service. Various other issues were also addressed.
beb0471b09c906908cd367b5a8f72eccRed Hat Security Advisory 2021-2185-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include denial of service, integer overflow, and use-after-free vulnerabilities.
9e3afd1d3d1cf4e5b7f53aec9f841ab1Red Hat Security Advisory 2021-2190-01 - The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Issues addressed include denial of service, integer overflow, and use-after-free vulnerabilities.
dc54ea4001a5a98a2bdd0b49ce8540b7Red Hat Security Advisory 2021-2168-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system.
695d4d0dca0e813dffc148909f48d3e1Red Hat Security Advisory 2021-2165-01 - 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.
49287de78f7c3992d0e8664afbe2308bRed Hat Security Advisory 2021-2169-01 - The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.
9803a617bbcda2de283725b5349d6ac7Red Hat Security Advisory 2021-2167-01 - 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 use-after-free vulnerability.
26b63c599f25d582a0de77db83954e9cRed Hat Security Advisory 2021-2164-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include buffer overflow, integer overflow, out of bounds write, and use-after-free vulnerabilities.
96cf174709ad79f0be3bf448f7fef8d2Red Hat Security Advisory 2021-2106-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include integer overflow and use-after-free vulnerabilities.
36a9c8ac7b70139f6cd33e85e9ff5c8dRed Hat Security Advisory 2021-2099-01 - 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 use-after-free vulnerability.
8dcab109822f3b82ca874d54f2486ffdUbuntu Security Notice 4945-2 - USN-4945-1 fixed vulnerabilities in the Linux kernel for Ubuntu 20.04 LTS and Ubuntu 18.04 LTS. This update provides the corresponding Linux kernel updates targeted specifically for Raspberry Pi devices in those same Ubuntu Releases. It was discovered that the Nouveau GPU driver in the Linux kernel did not properly handle error conditions in some situations. A local attacker could use this to cause a denial of service. Various other issues were also addressed.
bb177fea27f25a1a0200917a65970aefRed Hat Security Advisory 2021-1762-01 - Kernel-based Virtual Machine offers a full virtualization solution for Linux on numerous hardware platforms. The virt:rhel module contains packages which provide user-space components used to run virtual machines using KVM. The packages also provide APIs for managing and interacting with the virtualized systems. Issues addressed include buffer overflow, double free, information leakage, and out of bounds access vulnerabilities.
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