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Ubuntu - Linux kernel vulnerability (2020-03-30)

来源:Ubuntu官网 发布日期:2020-03-30 阅读次数:934 评论:0

基本信息

发布日期:2020-03-30(官方当地时间)

更新类型:安全更新

更新版本:未知

感知时间:2020-03-31 02:40:04

风险等级:未知

情报贡献:TSRC

更新标题

USN-4313-1: Linux kernel vulnerability

更新详情

linux, linux-aws, linux-azure, linux-azure-5.3, linux-gcp, linux-gcp-5.3, linux-gke-5.3, linux-hwe, linux-kvm, linux-oracle, linux-oracle-5.3, linux-raspi2, linux-raspi2-5.3 vulnerability
A security issue affects these releases of Ubuntu and its derivatives:
Ubuntu 19.10
Ubuntu 18.04 LTS
Summary
The system could be made to expose sensitive information or run programs as an administrator.
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-kvm - Linux kernel for cloud environments
linux-oracle - Linux kernel for Oracle Cloud systems
linux-raspi2 - Linux kernel for Raspberry Pi 2
linux-azure-5.3 - Linux kernel for Microsoft Azure Cloud systems
linux-gcp-5.3 - Linux kernel for Google Cloud Platform (GCP) systems
linux-gke-5.3 - Linux kernel for Google Container Engine (GKE) systems
linux-hwe - Linux hardware enablement (HWE) kernel
linux-oracle-5.3 - Linux kernel buildinfo for version 5.3.0 on 64 bit x86 SMP
linux-raspi2-5.3 - Linux kernel for Raspberry Pi 2
Details
Manfred Paul discovered that the bpf verifier in the Linux kernel did not properly calculate register bounds for certain operations. A local attacker could use this to expose sensitive information (kernel memory) or gain administrative privileges.
Update instructions
The problem can be corrected by updating your system to the following package versions:
Ubuntu 19.10
linux-image-5.3.0-1013-oracle - 5.3.0-1013.14
linux-image-5.3.0-1014-kvm - 5.3.0-1014.15
linux-image-5.3.0-1015-aws - 5.3.0-1015.16
linux-image-5.3.0-1016-gcp - 5.3.0-1016.17
linux-image-5.3.0-1018-azure - 5.3.0-1018.19
linux-image-5.3.0-1021-raspi2 - 5.3.0-1021.23
linux-image-5.3.0-45-generic - 5.3.0-45.37
linux-image-5.3.0-45-generic-lpae - 5.3.0-45.37
linux-image-5.3.0-45-lowlatency - 5.3.0-45.37
linux-image-5.3.0-45-snapdragon - 5.3.0-45.37
linux-image-aws - 5.3.0.1015.17
linux-image-azure - 5.3.0.1018.37
linux-image-gcp - 5.3.0.1016.17
linux-image-generic - 5.3.0.45.38
linux-image-generic-lpae - 5.3.0.45.38
linux-image-gke - 5.3.0.1016.17
linux-image-kvm - 5.3.0.1014.16
linux-image-lowlatency - 5.3.0.45.38
linux-image-oracle - 5.3.0.1013.14
linux-image-raspi2 - 5.3.0.1021.18
linux-image-snapdragon - 5.3.0.45.38
linux-image-virtual - 5.3.0.45.38
Ubuntu 18.04 LTS
linux-image-5.3.0-1013-oracle - 5.3.0-1013.14~18.04.1
linux-image-5.3.0-1016-gcp - 5.3.0-1016.17~18.04.1
linux-image-5.3.0-1016-gke - 5.3.0-1016.17~18.04.1
linux-image-5.3.0-1018-azure - 5.3.0-1018.19~18.04.1
linux-image-5.3.0-1021-raspi2 - 5.3.0-1021.23~18.04.1
linux-image-5.3.0-45-generic - 5.3.0-45.37~18.04.1
linux-image-5.3.0-45-generic-lpae - 5.3.0-45.37~18.04.1
linux-image-5.3.0-45-lowlatency - 5.3.0-45.37~18.04.1
linux-image-azure-edge - 5.3.0.1018.18
linux-image-gcp-edge - 5.3.0.1016.15
linux-image-generic-hwe-18.04 - 5.3.0.45.101
linux-image-generic-lpae-hwe-18.04 - 5.3.0.45.101
linux-image-gke-5.3 - 5.3.0.1016.6
linux-image-lowlatency-hwe-18.04 - 5.3.0.45.101
linux-image-oracle-edge - 5.3.0.1013.12
linux-image-raspi2-hwe-18.04 - 5.3.0.1021.10
linux-image-snapdragon-hwe-18.04 - 5.3.0.45.101
linux-image-virtual-hwe-18.04 - 5.3.0.45.101
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
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
CVE-2020-8835
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