Red Hat Security Advisory 2021-2136-01 - An Openshift Logging bug fix release addresses an index validation issue.
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Red Hat Security Advisory 2021-1739-01 - 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, null pointer, out of bounds read, out of bounds write, and use-after-free vulnerabilities.
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Red Hat Security Advisory 2021-1578-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include denial of service, integer overflow, memory leak, null pointer, out of bounds read, out of bounds write, and use-after-free vulnerabilities.
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Ubuntu Security Notice 4526-1 - It was discovered that the AMD Cryptographic Coprocessor device driver in the Linux kernel did not properly deallocate memory in some situations. A local attacker could use this to cause a denial of service. It was discovered that the Conexant 23885 TV card device driver for the Linux kernel did not properly deallocate memory in some error conditions. A local attacker could use this to cause a denial of service. Various other issues were also addressed.
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Ubuntu Security Notice 4483-1 - Chuhong Yuan discovered that go7007 USB audio device driver in the Linux kernel did not properly deallocate memory in some failure conditions. A physically proximate attacker could use this to cause a denial of service. Fan Yang discovered that the mremap implementation in the Linux kernel did not properly handle DAX Huge Pages. A local attacker with access to DAX storage could use this to gain administrative privileges. Various other issues were also addressed.
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Ubuntu Security Notice 4484-1 - It was discovered that the cgroup v2 subsystem in the Linux kernel did not properly perform reference counting in some situations, leading to a NULL pointer dereference. A local attacker could use this to cause a denial of service or possibly gain administrative privileges.
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