Merge ~bromer/usn.ubuntu.com/+git/lsn:lsn into usn.ubuntu.com:master

[Ben Romer]

Update for Livepatch 70.1

[Steve Beattie (sbeattie)]

Thanks, merged and published to https://usn.ubuntu.com/lsn/0070-1/

review: Approve

diff --git a/content/lsn/0070-1.md b/content/lsn/0070-1.md
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+---
+title: "LSN-0070-1: Kernel Live Patch Security Notice"
+permalink: /lsn/0070-1/index.html
+releases: [ubuntu-14.04-esm,ubuntu-16.04-lts,ubuntu-20.04-lts,ubuntu-18.04-lts]
+date: 2020-08-17 09:58:16
+description: "Several security issues were fixed in the kernel."
+---
+
+## Linux kernel vulnerabilities
+
+A security issue affects these releases of Ubuntu and its derivatives:
+
+* Ubuntu 18.04 LTS
+* Ubuntu 20.04 LTS
+* Ubuntu 16.04 LTS
+* Ubuntu 14.04 ESM
+
+### Summary
+
+A security issue was fixed in the 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-oem -  Linux kernel for OEM systems 
+
+### Details
+
+Mauricio Faria de Oliveira discovered that the aufs implementation in the
+Linux kernel improperly managed inode reference counts in the
+vfsub_dentry_open() method. A local attacker could use this vulnerability
+to cause a denial of service. (CVE-2020-11935)
+
+## Update instructions
+
+The problem can be corrected by updating your kernel livepatch to the following
+versions:
+
+Ubuntu 18.04 LTS
+: aws - 70.1
+: generic - 70.1
+: lowlatency - 70.1
+: oem - 70.1
+
+Ubuntu 20.04 LTS
+: aws - 70.1
+: azure - 70.1
+: gcp - 70.1
+: generic - 70.1
+: lowlatency - 70.1
+
+Ubuntu 16.04 LTS
+: aws - 70.1
+: azure - 70.1
+: generic - 70.1
+: lowlatency - 70.1
+
+Ubuntu 14.04 ESM
+: generic - 70.1
+: lowlatency - 70.1
+
+## Support Information
+
+Kernels older than the levels listed below do not receive livepatch 
+updates. If you are running a kernel version earlier than the one listed
+below, please upgrade your kernel as soon as possible.
+
+Ubuntu 18.04 LTS
+: linux-aws - 4.15.0-1054
+: linux-azure - 5.0.0-1025
+: linux-gcp - 5.0.0-1025
+: linux-oem - 4.15.0-1063
+: linux - 4.15.0-69
+
+Ubuntu 20.04 LTS
+: linux-aws - 5.4.0-1009
+: linux-azure - 5.4.0-1010
+: linux-gcp - 5.4.0-1009
+: linux-oem - 5.4.0-26
+: linux - 5.4.0-26
+
+Ubuntu 16.04 LTS
+: linux-aws - 4.4.0-1098
+: linux-azure - 4.15.0-1063
+: linux-hwe - 4.15.0-69
+: linux - 4.4.0-168
+
+Ubuntu 14.04 ESM
+: linux-lts-xenial - 4.4.0-168
+
+## References
+
+* [CVE-2020-11935](https://people.canonical.com/~ubuntu-security/cve/CVE-2020-11935)