ubuntu

Common Problems 116582

Ubuntu 24.04 LTS – /var filesystem full breaks package and service operations

🔴 Critical   ⏱ 5–30 min  Last verified: 8 October 2024 Affected versions: Ubuntu 24.04 LTS Ubuntu 24.04 Ubuntu 24.04.1 📖 ~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 […]

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Common Problems 116443

Ubuntu 24.04 LTS – snapd service fails and snap applications do not launch

🟠 High   ⏱ 5–30 min  Last verified: 8 October 2024 Affected versions: Ubuntu 24.04 LTS Ubuntu 24.04 Ubuntu 24.04.1 📖 ~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 […]

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Ubuntu 20.04 — golang-1.22 — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — golang-1.22 — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 8 October 2024 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7081-1 Related CVEs: CVE-2024-24791 CVE-2024-34155 CVE-2024-34156 CVE-2024-34158 Upstream summary: It was discovered that the Go net/http module did not properly handle responses to requests with an "Expect: 100-continue" header under […]

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Ubuntu 18.04 — needrestart — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — needrestart — multiple vulnerabilities (8 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 8 October 2024 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7117-3 Related CVEs: https://launchpad.net/bugs/2091096 https://launchpad.net/bugs/2089193 CVE-2024-10224 CVE-2024-11003 CVE-2024-48990 CVE-2024-48991 CVE-2024-48992 CVE-2022-30688 Upstream summary: USN-7117-1 fixed vulnerabilities in needrestart. The update introduced a regression in needrestart. This update fixes the problem […]

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How to Configure Unattended Upgrades on Ubuntu 24.04 — step-by-step Linux tutorial on Progressive Robot

How to Set Up SSH Keys on Ubuntu 24.04

SSH key authentication is far more secure than passwords. This guide covers generating an Ed25519 key pair and deploying it on Ubuntu 24.04 LTS. Tested and valid on: Ubuntu 24.04 LTS Prerequisites Ubuntu 24.04 LTS server with SSH running A user account on the server An SSH client on your local machine (Linux/macOS/Windows) Step 1 […]

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Ubuntu 20.04 — matrix-synapse — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — matrix-synapse — multiple vulnerabilities (8 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 7 October 2024 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7444-1 Related CVEs: CVE-2023-32683 CVE-2023-43796 CVE-2022-39374 CVE-2023-41335 CVE-2022-39335 CVE-2023-42453 CVE-2024-31208 CVE-2024-53863 Upstream summary: It was discovered that Synapse network policies could be bypassed via specially crafted URLs. An attacker could […]

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Ubuntu 16.04 — nginx — multiple vulnerabilities (19 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — nginx — multiple vulnerabilities (19 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 7 October 2024 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7014-2 Related CVEs: CVE-2024-7347 CVE-2022-41741 CVE-2022-41742 CVE-2020-11724 CVE-2020-36309 CVE-2021-3618 CVE-2017-20005 CVE-2021-23017  +11 more Upstream summary: USN-7014-1 fixed a vulnerability in nginx. This update provides the corresponding updates for Ubuntu 16.04 […]

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Ubuntu 24.04 — vlc — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 24.04

Ubuntu 24.04 — vlc — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 5 October 2024 Affected versions: Ubuntu 24.04 (noble) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7243-1 Related CVEs: CVE-2024-46461 Upstream summary: It was discovered that VLC incorrectly handled memory when reading an MMS stream. An attacker could possibly use this issue to cause a denial […]

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Ubuntu 24.04 — neomutt — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 24.04

Ubuntu 24.04 — neomutt — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 4 October 2024 Affected versions: Ubuntu 24.04 (noble) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7204-1 Related CVEs: CVE-2018-14349 CVE-2018-14350 CVE-2018-14351 CVE-2018-14352 CVE-2018-14353 CVE-2018-14354 CVE-2018-14355 CVE-2018-14356  +12 more Upstream summary: Jeriko One discovered that NeoMutt incorrectly handled certain IMAP and POP3 responses. An attacker could […]

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Ubuntu 20.04 — opensc — multiple vulnerabilities (19 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — opensc — multiple vulnerabilities (19 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 4 October 2024 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7346-3 Related CVEs: CVE-2021-42780 CVE-2021-42782 CVE-2023-2977 CVE-2023-40660 CVE-2023-40661 CVE-2024-45615 CVE-2024-45616 CVE-2024-45617  +11 more Upstream summary: USN-7346-1 fixed vulnerabilities in OpenSC. The update introduced a regression which broke smartcard based authentication. […]

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