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Ubuntu 20.10 USN-4713-1 High Severity: Data Access Risk Advisory

The system could allow unintended access to data in some environments.. =========================================================================Ubuntu Security Notice USN-4713-1 January 28, 2021 linux-aws, linux-aws-5.4, linux-azure, linux-gcp, linux-kvm, linux-oracle, linux-raspi vulnerability ========================================================================= A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 20.10 - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS Summary: The system could allow unintended access to data in some environments. Software Description: - linux-aws: Linux kernel for Amazon Web Services (AWS) systems - linux-azure: Linux kernel for Microsoft Azure Cloud systems - linux-kvm: Linux kernel for cloud environments - linux-oracle: Linux kernel for Oracle Cloud systems - linux-raspi: Linux kernel for Raspberry Pi (V8) systems - linux-gcp: Linux kernel for Google Cloud Platform (GCP) systems - linux-aws-5.4: Linux kernel for Amazon Web Services (AWS) systems Details: It was discovered that the LIO SCSI target implementation in the Linux kernel performed insufficient identifier checking in certain XCOPY requests. An attacker with access to at least one LUN in a multiple backstore environment could use this to expose sensitive information or modify data. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 20.10: linux-image-5.8.0-1013-raspi 5.8.0-1013.16 linux-image-5.8.0-1013-raspi-nolpae 5.8.0-1013.16 linux-image-5.8.0-1016-kvm 5.8.0-1016.18 linux-image-5.8.0-1018-oracle 5.8.0-1018.19 linux-image-5.8.0-1020-azure 5.8.0-1020.22 linux-image-5.8.0-1021-aws 5.8.0-1021.23 linux-image-aws 5.8.0.1021.23 linux-image-azure 5.8.0.1020.20 linux-image-kvm 5.8.0.1016.18 linux-image-oracle 5.8.0.1018.18 linux-image-raspi 5.8.0.1013.16 linux-image-raspi-nolpae 5.8.0.1013.16 Ubuntu 20.04LTS: linux-image-5.4.0-1032-kvm 5.4.0-1032.33 linux-image-5.4.0-1036-gcp 5.4.0-1036.39 linux-image-5.4.0-1037-aws 5.4.0-1037.39 linux-image-5.4.0-1037-oracle 5.4.0-1037.40 linux-image-5.4.0-1039-azure 5.4.0-1039.41 linux-image-aws 5.4.0.1037.38 linux-image-azure 5.4.0.1039.37 linux-image-gcp 5.4.0.1036.45 linux-image-kvm 5.4.0.1032.30 linux-image-oracle 5.4.0.1037.34 Ubuntu 18.04 LTS: linux-image-5.4.0-1037-aws 5.4.0-1037.39~18.04.1 linux-image-aws 5.4.0.1037.21 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-4713-1 CVE-2020-28374 Package Information: https://launchpad.net/ubuntu/+source/linux-aws/5.8.0-1021.23 https://launchpad.net/ubuntu/+source/linux-azure/5.8.0-1020.22 https://launchpad.net/ubuntu/+source/linux-kvm/5.8.0-1016.18 https://launchpad.net/ubuntu/+source/linux-oracle/5.8.0-1018.19 https://launchpad.net/ubuntu/+source/linux-raspi/5.8.0-1013.16 https://launchpad.net/ubuntu/+source/linux-aws/5.4.0-1037.39 https://launchpad.net/ubuntu/+source/linux-azure/5.4.0-1039.41 https://launchpad.net/ubuntu/+source/linux-gcp/5.4.0-1036.39 https://launchpad.net/ubuntu/+source/linux-kvm/5.4.0-1032.33 https://launchpad.net/ubuntu/+source/linux-oracle/5.4.0-1037.40 https://launchpad.net/ubuntu/+source/linux-aws-5.4/5.4.0-1037.39~18.04.1 . Enhance your Ubuntu installations immediately to rectify the kernel vulnerability outlined inSecurity Bulletin USN-4713-1, emphasizing the urgency of the update.. Linux Kernel Update, Cloud Security Advisory, Access Risk. . LinuxSecurity.com Team

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[{"id":483,"title":"Self-taught through trial and error","votes":555,"type":"x","order":1,"pct":78.72,"resources":[]},{"id":484,"title":"Formal training or courses","votes":30,"type":"x","order":2,"pct":4.26,"resources":[]},{"id":485,"title":"A job that required it","votes":34,"type":"x","order":3,"pct":4.82,"resources":[]},{"id":486,"title":"Other","votes":86,"type":"x","order":4,"pct":12.2,"resources":[]}] ["#ff5b00","#4ac0f2","#b80028","#eef66c","#60bb22","#b96a9a","#62c2cc"] ["rgba(255,91,0,0.7)","rgba(74,192,242,0.7)","rgba(184,0,40,0.7)","rgba(238,246,108,0.7)","rgba(96,187,34,0.7)","rgba(185,106,154,0.7)","rgba(98,194,204,0.7)"] 350
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