Ubuntu Security Notice 4907-1 - Wen Xu discovered that the xfs file system implementation in the Linux kernel did not properly validate the number of extents in an inode. An attacker could use this to construct a malicious xfs image that, when mounted, could cause a denial of service. It was discovered that the priority inheritance futex implementation in the Linux kernel contained a race condition, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Various other issues were also addressed.
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Ubuntu Security Notice 4904-1 - Ben Harris discovered that the Linux kernel would strip extended privilege attributes of files when performing a failed unprivileged system call. A local attacker could use this to cause a denial of service. Andrey Konovalov discovered that the video4linux driver for Hauppauge HD PVR USB devices in the Linux kernel did not properly handle some error conditions. A physically proximate attacker could use this to cause a denial of service or possibly execute arbitrary code. Various other issues were also addressed.
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Red Hat Security Advisory 2019-2043-01 - The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Issues addressed include buffer overflow, denial of service, information leakage, null pointer, and use-after-free vulnerabilities.
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Red Hat Security Advisory 2019-2029-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include buffer overflow, denial of service, information leakage, null pointer, and use-after-free vulnerabilities.
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Red Hat Security Advisory 2019-1350-01 - The kernel-alt packages provide the Linux kernel version 4.x. Issues addressed include a null pointer vulnerability.
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