ubuntu

Ubuntu 20.04 — libspring-java — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — libspring-java — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 15 July 2022 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7165-1 Related CVEs: CVE-2022-22965 Upstream summary: It was discovered that the Spring Framework incorrectly handled web requests via data binding. An attacker could possibly use this issue to achieve remote […]

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Ubuntu 20.04 — multipath-tools — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — multipath-tools — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 15 July 2022 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5731-1 Related CVEs: CVE-2022-41973 CVE-2022-41974 Upstream summary: It was discovered that multipath-tools incorrectly handled symlinks. A local attacker could possibly use this issue, in combination with other issues, to escalate […]

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Ubuntu 16.04 — check-mk — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — check-mk — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 15 July 2022 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5527-2 Related CVEs: CVE-2017-14955 CVE-2017-9781 CVE-2021-36563 CVE-2022-24565 Upstream summary: USN-5527-1 fixed vulnerabilities in Checkmk. This update provides the corresponding update for Ubuntu 16.04 ESM. Original advisory details: It was discovered […]

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Ubuntu 18.04 — busybox — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — busybox — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 14 July 2022 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6335-1 Related CVEs: CVE-2021-28831 CVE-2022-48174 CVE-2021-42374 CVE-2021-42378 CVE-2021-42379 CVE-2021-42380 CVE-2021-42381 CVE-2021-42382  +12 more Upstream summary: It was discovered that BusyBox incorrectly handled certain malformed gzip archives. If a user or […]

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Ubuntu 14.04 — wireshark — multiple vulnerabilities (15 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — wireshark — multiple vulnerabilities (15 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 13 July 2022 Affected versions: Ubuntu 14.04 (trusty) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7552-1 Related CVEs: CVE-2021-4185 CVE-2022-0582 CVE-2022-0586 CVE-2022-3190 CVE-2021-4182 CVE-2022-0585 CVE-2021-39929 CVE-2021-4186  +7 more Upstream summary: It was discovered that Wireshark did not correctly handle recursion. If a user or system […]

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Common Problems 116961

Ubuntu 22.04 LTS – Cloud-init overwrites network config unexpectedly – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 13 July 2022 Affected versions: Ubuntu 22.04 LTS 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention & Hardening Related Errors […]

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Ubuntu 16.04 — sosreport — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — sosreport — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 12 July 2022 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5636-1 Related CVEs: CVE-2022-2806 Upstream summary: It was discovered that SoS incorrectly handled certain data. An attacker could possibly use this issue to expose sensitive information. Table of contents Symptom […]

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How To Create a SSL Certificate on nginx for Ubuntu 12.04 — step-by-step Linux tutorial on Progressive Robot

How To Create a SSL Certificate on nginx for Ubuntu 12.04

This tutorial explains how to create a self-signed SSL certificate, how to add it to your server, and how to configure the SSL file to display the certificate to the world. A SSL certificate is a way to encrypt a site’s information and create a more secure connection. Certificate Authorities can issue SSL certificates that verify the server’s details while a self-signed certificate has no 3rd party corroboration. These steps are for setting up an SSL certificate on Nginx for an Ubuntu server.

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Ubuntu 18.04 — lasso — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — lasso — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 11 July 2022 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4974-1 Related CVEs: CVE-2021-28091 Upstream summary: It was discovered that Lasso did not properly verify that all assertions in a SAML response were properly signed. An attacker could possibly use […]

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