========================================================================== Ubuntu Security Notice USN-6624-1 February 07, 2024
linux, linux-aws, linux-gcp, linux-hwe-6.5, linux-laptop, linux-lowlatency, linux-lowlatency-hwe-6.5, linux-oem-6.5, linux-oracle, linux-raspi, linux-starfive vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 23.10 - Ubuntu 22.04 LTS Summary: Several security issues were fixed in the Linux kernel. Software Description: - linux: Linux kernel - linux-aws: Linux kernel for Amazon Web Services (AWS) systems - linux-gcp: Linux kernel for Google Cloud Platform (GCP) systems - linux-laptop: Linux kernel for Lenovo X13s ARM laptops - linux-lowlatency: Linux low latency kernel - linux-oracle: Linux kernel for Oracle Cloud systems - linux-raspi: Linux kernel for Raspberry Pi systems - linux-starfive: Linux kernel for StarFive processors - linux-hwe-6.5: Linux hardware enablement (HWE) kernel - linux-lowlatency-hwe-6.5: Linux low latency kernel - linux-oem-6.5: Linux kernel for OEM systems Details: Marek Marczykowski-Górecki discovered that the Xen event channel infrastructure implementation in the Linux kernel contained a race condition. An attacker in a guest VM could possibly use this to cause a denial of service (paravirtualized device unavailability). (CVE-2023-34324) Zheng Wang discovered a use-after-free in the Renesas Ethernet AVB driver in the Linux kernel during device removal. A privileged attacker could use this to cause a denial of service (system crash). (CVE-2023-35827) Tom Dohrmann discovered that the Secure Encrypted Virtualization (SEV) implementation for AMD processors in the Linux kernel contained a race condition when accessing MMIO registers. A local attacker in a SEV guest VM could possibly use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-46813) It was discovered that the io_uring subsystem in the Linux kernel contained a race condition, leading to a null pointer dereference vulnerability. A local attacker could use this to cause a denial of service (system crash). (CVE-2023-46862) It was discovered that the netfilter subsystem in the Linux kernel did not properly validate inner tunnel netlink attributes, leading to a null pointer dereference vulnerability. A local attacker could use this to cause a denial of service (system crash). (CVE-2023-5972) It was discovered that the TLS subsystem in the Linux kernel did not properly perform cryptographic operations in some situations, leading to a null pointer dereference vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-6176) Jann Horn discovered that a race condition existed in the Linux kernel when handling io_uring over sockets, 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-2023-6531) Xingyuan Mo discovered that the netfilter subsystem in the Linux kernel did not properly handle dynset expressions passed from userspace, leading to a null pointer dereference vulnerability. A local attacker could use this to cause a denial of service (system crash). (CVE-2023-6622) It was discovered that the TIPC protocol implementation in the Linux kernel did not properly handle locking during tipc_crypto_key_revoke() operations. A local attacker could use this to cause a denial of service (kernel deadlock). (CVE-2024-0641) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 23.10: linux-image-6.5.0-1007-starfive 6.5.0-1007.8 linux-image-6.5.0-1009-laptop 6.5.0-1009.12 linux-image-6.5.0-1010-raspi 6.5.0-1010.13 linux-image-6.5.0-1013-aws 6.5.0-1013.13 linux-image-6.5.0-1013-gcp 6.5.0-1013.13 linux-image-6.5.0-1015-oracle 6.5.0-1015.15 linux-image-6.5.0-17-generic 6.5.0-17.17 linux-image-6.5.0-17-generic-64k 6.5.0-17.17 linux-image-6.5.0-17-lowlatency 6.5.0-17.17.1 linux-image-6.5.0-17-lowlatency-64k 6.5.0-17.17.1 linux-image-aws 6.5.0.1013.13 linux-image-gcp 6.5.0.1013.13 linux-image-generic 6.5.0.17.19 linux-image-generic-64k 6.5.0.17.19 linux-image-generic-lpae 6.5.0.17.19 linux-image-kvm 6.5.0.17.19 linux-image-laptop-23.10 6.5.0.1009.12 linux-image-lowlatency 6.5.0.17.17.14 linux-image-lowlatency-64k 6.5.0.17.17.14 linux-image-oracle 6.5.0.1015.15 linux-image-raspi 6.5.0.1010.11 linux-image-raspi-nolpae 6.5.0.1010.11 linux-image-starfive 6.5.0.1007.9 linux-image-virtual 6.5.0.17.19 Ubuntu 22.04 LTS: linux-image-6.5.0-1014-oem 6.5.0-1014.15 linux-image-6.5.0-17-generic 6.5.0-17.17~22.04.1 linux-image-6.5.0-17-generic-64k 6.5.0-17.17~22.04.1 linux-image-6.5.0-17-lowlatency 6.5.0-17.17.1.1.1~22.04.1 linux-image-6.5.0-17-lowlatency-64k 6.5.0-17.17.1.1.1~22.04.1 linux-image-generic-64k-hwe-22.04 6.5.0.17.17~22.04.9 linux-image-generic-hwe-22.04 6.5.0.17.17~22.04.9 linux-image-lowlatency-64k-hwe-22.04 6.5.0.17.17.1.1.1~22.04.6 linux-image-lowlatency-hwe-22.04 6.5.0.17.17.1.1.1~22.04.6 linux-image-oem-22.04d 6.5.0.1014.16 linux-image-virtual-hwe-22.04 6.5.0.17.17~22.04.9 After a standard system update you need to reboot your computer to make all the necessary changes. ATTENTION: Due to an unavoidable ABI change the kernel updates have been given a new version number, which requires you to recompile and reinstall all third party kernel modules you might have installed. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual, linux-powerpc), a standard system upgrade will automatically perform this as well. References: https://ubuntu.com/security/notices/USN-6624-1 CVE-2023-34324, CVE-2023-35827, CVE-2023-46813, CVE-2023-46862, CVE-2023-5972, CVE-2023-6176, CVE-2023-6531, CVE-2023-6622, CVE-2024-0641 Package Information: https://launchpad.net/ubuntu/+source/linux/6.5.0-17.17 https://launchpad.net/ubuntu/+source/linux-aws/6.5.0-1013.13 https://launchpad.net/ubuntu/+source/linux-gcp/6.5.0-1013.13 https://launchpad.net/ubuntu/+source/linux-laptop/6.5.0-1009.12 https://launchpad.net/ubuntu/+source/linux-lowlatency/6.5.0-17.17.1 https://launchpad.net/ubuntu/+source/linux-oracle/6.5.0-1015.15 https://launchpad.net/ubuntu/+source/linux-raspi/6.5.0-1010.13 https://launchpad.net/ubuntu/+source/linux-starfive/6.5.0-1007.8 https://launchpad.net/ubuntu/+source/linux-hwe-6.5/6.5.0-17.17~22.04.1 https://launchpad.net/ubuntu/+source/linux-lowlatency-hwe-6.5/6.5.0-17.17.1.1.1~22.04.1 https://launchpad.net/ubuntu/+source/linux-oem-6.5/6.5.0-1014.15
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