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Linux kernel (Azure) vulnerabilities

Description

## Releases * Ubuntu 22.04 LTS * Ubuntu 20.04 LTS ## Packages * linux-azure \- Linux kernel for Microsoft Azure Cloud systems * linux-azure-5.15 \- Linux kernel for Microsoft Azure cloud systems * linux-azure-fde \- Linux kernel for Microsoft Azure CVM cloud systems It was discovered that the NFSD implementation in the Linux kernel did not properly handle some RPC messages, leading to a buffer overflow. A remote attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-43945) Jann Horn discovered that the Linux kernel did not properly track memory allocations for anonymous VMA mappings in some situations, leading to potential data structure reuse. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-42703) It was discovered that a memory leak existed in the IPv6 implementation of the Linux kernel. A local attacker could use this to cause a denial of service (memory exhaustion). (CVE-2022-3524) It was discovered that a race condition existed in the Bluetooth subsystem in the Linux kernel, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-3564) It was discovered that the ISDN implementation of the Linux kernel contained a use-after-free vulnerability. A privileged user could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-3565) It was discovered that the TCP implementation in the Linux kernel contained a data race condition. An attacker could possibly use this to cause undesired behaviors. (CVE-2022-3566) It was discovered that the IPv6 implementation in the Linux kernel contained a data race condition. An attacker could possibly use this to cause undesired behaviors. (CVE-2022-3567) It was discovered that the Realtek RTL8152 USB Ethernet adapter driver in the Linux kernel did not properly handle certain error conditions. A local attacker with physical access could plug in a specially crafted USB device to cause a denial of service (memory exhaustion). (CVE-2022-3594) It was discovered that a null pointer dereference existed in the NILFS2 file system implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2022-3621)


Affected Package


OS OS Version Package Name Package Version
Ubuntu 22.04 linux-image-azure-fde 5.15.0.1029.36.6
Ubuntu 22.04 linux-image-azure-lts-22.04 5.15.0.1029.25
Ubuntu 22.04 linux-azure 5.15.0.1029.25
Ubuntu 22.04 linux-cloud-tools-azure 5.15.0.1029.25
Ubuntu 22.04 linux-headers-azure 5.15.0.1029.25
Ubuntu 22.04 linux-image-azure 5.15.0.1029.25
Ubuntu 22.04 linux-modules-extra-azure 5.15.0.1029.25
Ubuntu 22.04 linux-tools-azure 5.15.0.1029.25
Ubuntu 22.04 linux-image-5.15.0-1029-azure 5.15.0-1029.36
Ubuntu 22.04 linux-image-5.15.0-1003-azure 5.15.0-1029.36
Ubuntu 22.04 linux-image-5.15.0-1003-azure-dbgsym 5.15.0-1029.36
Ubuntu 22.04 linux-image-5.15.0-1029-azure-fde 5.15.0-1029.36.1
Ubuntu 20.04 linux-image-azure 5.15.0.1029.36~20.04.19
Ubuntu 20.04 linux-image-5.15.0-1029-azure 5.15.0-1029.36~20.04.1

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