USN-6724-2

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USN-6724-2

Summary: linux-aws-6.5, linux-raspi vulnerabilities

Details: Pratyush Yadav discovered that the Xen network backend implementation in the Linux kernel did not properly handle zero length data request, leading to a null pointer dereference vulnerability. An attacker in a guest VM could possibly use this to cause a denial of service (host domain crash). (CVE-2023-46838) It was discovered that the Habana's AI Processors driver in the Linux kernel did not properly initialize certain data structures before passing them to user space. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2023-50431) It was discovered that the device mapper driver in the Linux kernel did not properly validate target size during certain memory allocations. A local attacker could use this to cause a denial of service (system crash). (CVE-2023-52429, CVE-2024-23851) It was discovered that the CIFS network file system implementation in the Linux kernel did not properly validate certain SMB messages, leading to an out-of-bounds read vulnerability. An attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information. (CVE-2023-6610) Yang Chaoming discovered that the KSMBD implementation in the Linux kernel did not properly validate request buffer sizes, leading to an out-of-bounds read vulnerability. An attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information. (CVE-2024-22705) Chenyuan Yang discovered that the btrfs file system in the Linux kernel did not properly handle read operations on newly created subvolumes in certain conditions. A local attacker could use this to cause a denial of service (system crash). (CVE-2024-23850) Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - Android drivers; - Userspace I/O drivers; - F2FS file system; - SMB network file system; - Networking core; (CVE-2023-52434, CVE-2023-52436, CVE-2023-52435, CVE-2023-52439, CVE-2023-52438)

References: https://ubuntu.com/security/notices/USN-6724-2, https://ubuntu.com/security/CVE-2023-6610, https://ubuntu.com/security/CVE-2023-46838, https://ubuntu.com/security/CVE-2023-50431, https://ubuntu.com/security/CVE-2023-52429, https://ubuntu.com/security/CVE-2023-52434, https://ubuntu.com/security/CVE-2023-52435, https://ubuntu.com/security/CVE-2023-52436, https://ubuntu.com/security/CVE-2023-52438, https://ubuntu.com/security/CVE-2023-52439, https://ubuntu.com/security/CVE-2024-22705, https://ubuntu.com/security/CVE-2024-23850, https://ubuntu.com/security/CVE-2024-23851