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Ubuntu Security Notice USN-5700-1

Ubuntu Security Notice 5700-1 - 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 or possibly execute arbitrary code. Soenke 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 or possibly execute arbitrary code.

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#vulnerability#web#google#microsoft#amazon#ubuntu#linux#dos#oracle#perl#aws#buffer_overflow#ibm#wifi
==========================================================================Ubuntu Security Notice USN-5700-1October 26, 2022linux, 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 22.10Summary: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 systemsDetails:David Bouman and Billy Jheng Bing Jhong discovered that a race conditionexisted 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 denialof service (system crash) or possibly execute arbitrary code.(CVE-2022-2602)Sönke Huster discovered that an integer overflow vulnerability existed inthe WiFi driver stack in the Linux kernel, leading to a buffer overflow. Aphysically 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 theWiFi driver stack in the Linux kernel. A physically proximate attackercould use this to cause a denial of service (system crash) or possiblyexecute arbitrary code. (CVE-2022-42719)Sönke Huster discovered that the WiFi driver stack in the Linux kernel didnot properly perform reference counting in some situations, leading to ause-after-free vulnerability. A physically proximate attacker could usethis to cause a denial of service (system crash) or possibly executearbitrary code. (CVE-2022-42720)Sönke Huster discovered that the WiFi driver stack in the Linux kernel didnot properly handle BSSID/SSID lists in some situations. A physicallyproximate attacker could use this to cause a denial of service (infiniteloop). (CVE-2022-42721)Sönke Huster discovered that the WiFi driver stack in the Linux kernelcontained a NULL pointer dereference vulnerability in certain situations. Aphysically 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 followingpackage 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             5.19.0.23.22After a standard system update you need to reboot your computer to makeall the necessary changes.ATTENTION: Due to an unavoidable ABI change the kernel updates havebeen given a new version number, which requires you to recompile andreinstall 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 performthis 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-2022-42722Package 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

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CVE-2022-42720: Invalid Bug ID

Various refcounting bugs in the multi-BSS handling in the mac80211 stack in the Linux kernel 5.1 through 5.19.x before 5.19.16 could be used by local attackers (able to inject WLAN frames) to trigger use-after-free conditions to potentially execute code.

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A use-after-free in the mac80211 stack when parsing a multi-BSSID element in the Linux kernel 5.2 through 5.19.14 could be used by attackers (able to inject WLAN frames) to crash the kernel and potentially execute code.

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