ubuntu

Ubuntu 16.04 — wayland — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — wayland — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 1 May 2022 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5614-2 Related CVEs: CVE-2021-3782 CVE-2017-16612 Upstream summary: USN-5614-1 fixed a vulnerability in Wayland. This update provides the corresponding update for Ubuntu 16.04 ESM. Original advisory details: It was discovered that […]

Read more
Ubuntu 18.04 — alpine — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — alpine — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 1 May 2022 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7360-1 Related CVEs: CVE-2020-14929 CVE-2021-38370 CVE-2021-46853 Upstream summary: It was discovered that Alpine did not use a secure connection under certain circumstances. A remote attacker could possibly use this issue […]

Read more
Common Problems 117138

Ubuntu 22.04 LTS – kubelet fails because swap is enabled – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 1 May 2022 Affected versions: Ubuntu 22.04 LTS (Jammy) 📖 ~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 […]

Read more
Ubuntu 20.04 — libinput — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — libinput — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 30 April 2022 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5382-1 Related CVEs: CVE-2022-1215 Upstream summary: Albin Eldstål-Ahrens and Lukas Lamster discovered libinput did not properly handle input devices with specially crafted names. A local attacker with physical access could […]

Read more
Common Problems 116957

Ubuntu 22.04 Severe Swap Thrashing Under Memory Pressure

🟡 Medium   ⏱ 5–30 min  Last verified: 29 April 2022 📖 ~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 & Cross-Refs References & Further […]

Read more
Ubuntu 20.04 — libtar — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — libtar — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 28 April 2022 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7398-1 Related CVEs: CVE-2021-33643 CVE-2021-33644 CVE-2021-33645 CVE-2021-33646 Upstream summary: It was discovered that libtar may perform out-of-bounds reads when processing specially crafted tar files. An attacker could possibly use this […]

Read more
Ubuntu 20.04 — graphicsmagick — multiple vulnerabilities (12 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — graphicsmagick — multiple vulnerabilities (12 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 28 April 2022 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5974-1 Related CVEs: CVE-2018-20184 CVE-2018-20189 CVE-2018-5685 CVE-2018-9018 CVE-2019-11006 CVE-2020-12672 CVE-2022-1270 CVE-2019-12921  +4 more Upstream summary: It was discovered that GraphicsMagick was not properly performing bounds checks when processing TGA image […]

Read more
Ubuntu 22.04 — nvidia-graphics-drivers-470-server — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — nvidia-graphics-drivers-470-server — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 28 April 2022 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5547-1 Related CVEs: CVE-2022-31607 CVE-2022-31608 CVE-2022-31615 Upstream summary: Le Wu discovered that the NVIDIA graphics drivers did not properly perform input validation in some situations. A local user could use […]

Read more
Common Problems 118615

Ubuntu 16.04 LTS – snapd cannot reach the Snap store

🟡 Medium   ⏱ 5–30 min  Last verified: 27 April 2022 Affected versions: Ubuntu 16.04 LTS Ubuntu 16.04 Ubuntu 16.04.7 📖 ~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 […]

Read more
CHAT