Ubuntu Security Notice 4997-2 - USN-4997-1 fixed vulnerabilities in the Linux kernel for Ubuntu 21.04. This update provides the corresponding updates for the Linux KVM kernel for Ubuntu 21.04. Norbert Slusarek discovered a race condition in the CAN BCM networking protocol of the Linux kernel leading to multiple use-after-free vulnerabilities. A local attacker could use this issue to execute arbitrary code. Various other issues were also addressed.
16f2c8cca9066cef3cbb8b6417110467cabb0932233c1b98fecf1f6a500fac6bUbuntu Security Notice 5001-1 - Norbert Slusarek discovered a race condition in the CAN BCM networking protocol of the Linux kernel leading to multiple use-after-free vulnerabilities. A local attacker could use this issue to execute arbitrary code. Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation did not properly clear received fragments from memory in some situations. A physically proximate attacker could possibly use this issue to inject packets or expose sensitive information. Various other issues were also addressed.
5f5601cefe59acf494f5ddfb941d777aac5a9c41385c15183c3994b1ea7cda1cUbuntu Security Notice 4997-1 - Norbert Slusarek discovered a race condition in the CAN BCM networking protocol of the Linux kernel leading to multiple use-after-free vulnerabilities. A local attacker could use this issue to execute arbitrary code. 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. Various other issues were also addressed.
b752f37a5817c7e613a44c23fb3cefa0e5dee0cec9c72c2382a006d6cba9ccb6Red Hat Security Advisory 2021-2286-01 - Red Hat OpenShift Container Platform is Red Hat's cloud computing Kubernetes application platform solution designed for on-premise or private cloud deployments. This advisory contains the container images for Red Hat OpenShift Container Platform 4.7.16. Issues addressed include a remote shell upload vulnerability.
ece0bc4caa2fe2afa806da433841d46e04bb783b0678dc25fab79a4e0d765379Red Hat Security Advisory 2021-2168-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system.
54bd74fb552802738cbdde5b8c93eb1b4b7df96eca91d8c4e5270b64ceffa2e3Red 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.
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