========================================================================== Ubuntu Security Notice USN-5700-1 October 26, 2022
linux, linux-aws, linux-azure, linux-gcp, linux-ibm, linux-kvm, linux-lowlatency, linux-oracle, linux-raspi vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 22.10 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-azure: Linux kernel for Microsoft Azure Cloud systems - linux-gcp: Linux kernel for Google Cloud Platform (GCP) systems - linux-ibm: Linux kernel for IBM cloud systems - linux-kvm: Linux kernel for cloud environments - linux-lowlatency: Linux low latency kernel - linux-oracle: Linux kernel for Oracle Cloud systems - linux-raspi: Linux kernel for Raspberry Pi systems Details: David Bouman and Billy Jheng Bing Jhong discovered that a race condition existed in the io_uring 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-2022-2602) Sönke Huster discovered that an integer overflow vulnerability existed in the WiFi driver stack in the Linux kernel, leading to a buffer overflow. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-41674) Sönke Huster discovered that a use-after-free vulnerability existed in the WiFi driver stack in the Linux kernel. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-42719) Sönke Huster discovered that the WiFi driver stack in the Linux kernel did not properly perform reference counting in some situations, leading to a use-after-free vulnerability. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-42720) Sönke Huster discovered that the WiFi driver stack in the Linux kernel did not properly handle BSSID/SSID lists in some situations. A physically proximate attacker could use this to cause a denial of service (infinite loop). (CVE-2022-42721) Sönke Huster discovered that the WiFi driver stack in the Linux kernel contained a NULL pointer dereference vulnerability in certain situations. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2022-42722) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 22.10: linux-image-5.19.0-1006-raspi 5.19.0-1006.13 linux-image-5.19.0-1006-raspi-nolpae 5.19.0-1006.13 linux-image-5.19.0-1009-lowlatency 5.19.0-1009.10 linux-image-5.19.0-1009-lowlatency-64k 5.19.0-1009.10 linux-image-5.19.0-1010-azure 5.19.0-1010.11 linux-image-5.19.0-1010-gcp 5.19.0-1010.11 linux-image-5.19.0-1010-ibm 5.19.0-1010.11 linux-image-5.19.0-1010-kvm 5.19.0-1010.11 linux-image-5.19.0-1010-oracle 5.19.0-1010.11 linux-image-5.19.0-1011-aws 5.19.0-1011.12 linux-image-5.19.0-23-generic 5.19.0-23.24 linux-image-5.19.0-23-generic-64k 5.19.0-23.24 linux-image-5.19.0-23-generic-lpae 5.19.0-23.24 linux-image-aws 5.19.0.1011.10 linux-image-azure 5.19.0.1010.9 linux-image-gcp 5.19.0.1010.9 linux-image-generic 5.19.0.23.22 linux-image-generic-64k 5.19.0.23.22 linux-image-generic-lpae 5.19.0.23.22 linux-image-ibm 5.19.0.1010.9 linux-image-kvm 5.19.0.1010.9 linux-image-lowlatency 5.19.0.1009.8 linux-image-lowlatency-64k 5.19.0.1009.8 linux-image-oem-22.04 5.19.0.23.22 linux-image-oracle 5.19.0.1010.9 linux-image-raspi 5.19.0.1006.7 linux-image-raspi-nolpae 5.19.0.1006.7 linux-image-virtual 5.19.0.23.22 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-5700-1 CVE-2022-2602, CVE-2022-41674, CVE-2022-42719, CVE-2022-42720, CVE-2022-42721, CVE-2022-42722 Package Information: https://launchpad.net/ubuntu/+source/linux/5.19.0-23.24 https://launchpad.net/ubuntu/+source/linux-aws/5.19.0-1011.12 https://launchpad.net/ubuntu/+source/linux-azure/5.19.0-1010.11 https://launchpad.net/ubuntu/+source/linux-gcp/5.19.0-1010.11 https://launchpad.net/ubuntu/+source/linux-ibm/5.19.0-1010.11 https://launchpad.net/ubuntu/+source/linux-kvm/5.19.0-1010.11 https://launchpad.net/ubuntu/+source/linux-lowlatency/5.19.0-1009.10 https://launchpad.net/ubuntu/+source/linux-oracle/5.19.0-1010.11 https://launchpad.net/ubuntu/+source/linux-raspi/5.19.0-1006.13
signature.asc
Description: PGP signature
