Linux

Ubuntu 18.04 — webkit2gtk — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — webkit2gtk — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 24 June 2022 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5087-1 Related CVEs: CVE-2021-30858 CVE-2021-21775 CVE-2021-21779 CVE-2021-30663 CVE-2021-30665 CVE-2021-30689 CVE-2021-30720 CVE-2021-30734  +12 more Upstream summary: A large number of security issues were discovered in the WebKitGTK Web and JavaScript engines. […]

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Ubuntu 20.04 — linux-oracle-5.11 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — linux-oracle-5.11 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 24 June 2022 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5265-1 Related CVEs: CVE-2020-27820 CVE-2021-3640 CVE-2021-3752 CVE-2021-3772 CVE-2021-4001 CVE-2021-4090 CVE-2021-4093 CVE-2021-4202  +12 more Upstream summary: Jeremy Cline discovered a use-after-free in the nouveau graphics driver of the Linux kernel during […]

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Ubuntu 16.04 — lynx — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — lynx — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 24 June 2022 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4800-1 Related CVEs: CVE-2016-9179 CVE-2017-1000211 CVE-2021-38165 Upstream summary: It was discovered that Lynx incorrectly handled certain URLs. A remote attacker could possibly use this issue to obtain sensitive information or […]

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SLES 15 — libsbc1 — multiple vulnerabilities (9 CVEs) — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — libsbc1 — multiple vulnerabilities (9 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 24 June 2022 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2021:2125-1 (see also SUSE bugzilla) Related CVEs: CVE-2021-22191 CVE-2020-26418 CVE-2020-26419 CVE-2020-26420 CVE-2020-26421 CVE-2020-26422 CVE-2021-22173 CVE-2021-22174  +1 more Upstream summary: Improper URL handling in Wireshark 3.4.0 to 3.4.3 and 3.2.0 to 3.2.11 could […]

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Oracle Linux 8 — firefox — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — firefox — vulnerability — patch and remediation guide (ELSA-2022-7070)

🟠 High   ⏱ 15–60 min  Last verified: 24 June 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-7070 Related CVEs: CVE-2022-42928 CVE-2022-42929 CVE-2022-42932 CVE-2022-42927 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches […]

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Oracle Linux 8 — firefox — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — firefox — vulnerability — patch and remediation guide (ELSA-2022-8554)

🟠 High   ⏱ 15–60 min  Last verified: 24 June 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-8554 Related CVEs: CVE-2022-45412 CVE-2022-45420 CVE-2022-45405 CVE-2022-45408 CVE-2022-45409 CVE-2022-45403 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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SLES 12 — salt — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on SLES 12

SLES 12 — salt — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 24 June 2022 Affected versions: SLES 12 📖 ~4 min read  •  Source: SUSE advisory SUSE-CU-2022:64-1 (see also SUSE bugzilla) Related CVEs: CVE-2020-11651 CVE-2020-11652 CVE-2020-16846 CVE-2020-25592 CVE-2020-28972 CVE-2020-35662 CVE-2021-25281 CVE-2021-25282  +12 more Upstream summary: An issue was discovered in SaltStack Salt before 2019.2.4 and 3000 before 3000.2. […]

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Oracle Linux 8 — grafana security, bug fix, and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — grafana security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2020-4682)

🟡 Medium   ⏱ 10–30 min  Last verified: 23 June 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-4682 Related CVEs: CVE-2020-12458 CVE-2020-12245 CVE-2019-19499 CVE-2020-13430 CVE-2018-18624 CVE-2020-11110 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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Common Problems 120482

Debian 11: unattended-upgrades stuck and blocking apt

🟡 Medium   ⏱ 5–30 min  Last verified: 23 June 2022 Affected versions: Debian 11 📖 ~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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AlmaLinux 8 — eclipse-emf — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — eclipse-emf — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALBA-2020:5097 Upstream summary: Eclipse is an integrated development environment (IDE). The metadata for the eclipse:rhel8 module has been updated to remove the following unused profiles: c everything To check whether you have […]

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CHAT