Red Hat Security Advisory 2022-0620-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include double free, out of bounds write, privilege escalation, and use-after-free vulnerabilities.
63324cce18db8d1f06bc8d01cde1688dfbe96f1be29a3d711888a743dee833d0Red Hat Security Advisory 2022-0622-01 - 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, out of bounds write, privilege escalation, and use-after-free vulnerabilities.
1abf9ccc7a6610c1e2f76510441d10c8276850c7233a64d96784a8a539ab2872Ubuntu Security Notice 5050-1 - It was discovered that the bluetooth subsystem in the Linux kernel did not properly perform access control. An authenticated attacker could possibly use this to expose sensitive information. Michael Brown discovered that the Xen netback driver in the Linux kernel did not properly handle malformed packets from a network PV frontend, leading to a use-after-free vulnerability. An attacker in a guest VM could use this to cause a denial of service or possibly execute arbitrary code. Various other issues were also addressed.
15f18b4a1645df7896d1474336043a68629898f3145352b2946dd200efd3f028Ubuntu Security Notice 5046-1 - It was discovered that the bluetooth subsystem in the Linux kernel did not properly perform access control. An authenticated attacker could possibly use this to expose sensitive information. Michael Brown discovered that the Xen netback driver in the Linux kernel did not properly handle malformed packets from a network PV frontend, leading to a use-after-free vulnerability. An attacker in a guest VM could use this to cause a denial of service or possibly execute arbitrary code. Various other issues were also addressed.
911bcc859f7a0c9a9d1bae83c2f53e3ca1b9840869a5229252148bb51ba89399Ubuntu Security Notice 5045-1 - Norbert Slusarek discovered that the CAN broadcast manger protocol implementation in the Linux kernel did not properly initialize memory in some situations. A local attacker could use this to expose sensitive information. It was discovered that the bluetooth subsystem in the Linux kernel did not properly handle HCI device initialization failure, leading to a double-free vulnerability. An attacker could use this to cause a denial of service or possibly execute arbitrary code. Various other issues were also addressed.
bde5f3bf782e59c0ed151fd7c46c5d2258f7fcd96669a1026e3e26aff417fae1Ubuntu Security Notice 5044-1 - It was discovered that the bluetooth subsystem in the Linux kernel did not properly handle HCI device initialization failure, leading to a double-free vulnerability. An attacker could use this to cause a denial of service or possibly execute arbitrary code. It was discovered that the bluetooth subsystem in the Linux kernel did not properly handle HCI device detach events, leading to a use-after-free vulnerability. An attacker could use this to cause a denial of service or possibly execute arbitrary code. Various other issues were also addressed.
4c707db347e5e85dd8a2e478b9d34805f370899a49b0eb92b09d5abeb6293712Ubuntu Security Notice 5015-1 - It was discovered that the virtual file system implementation in the Linux kernel contained an unsigned to signed integer conversion error. A local attacker could use this to cause a denial of service or execute arbitrary code. Michael Brown discovered that the Xen netback driver in the Linux kernel did not properly handle malformed packets from a network PV frontend, leading to a use-after-free vulnerability. An attacker in a guest VM could use this to cause a denial of service or possibly execute arbitrary code. Various other issues were also addressed.
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