Common Problems

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

Oracle Linux 8 — flatpak — vulnerability — patch and remediation guide (ELSA-2021-0304)

🟠 High   ⏱ 15–60 min  Last verified: 10 March 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-0304 Related CVEs: CVE-2021-21261 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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Gentoo Linux — media-libs/gst-plugins-ugly — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — media-libs/gst-plugins-ugly — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202208-31 Related CVEs: CVE-2021-3185 CVE-2021-3497 CVE-2021-3498 CVE-2021-3522 Upstream summary: Multiple vulnerabilities have been found in GStreamer and its plugins. Please review the CVE and GStreamer-SA identifiers referenced below for details. Table of […]

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Oracle Linux 8 — grafana — security and stability fixes — required update — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — grafana — security and stability fixes — required update (ELSA-2024-1646)

🟠 High   ⏱ 15–60 min  Last verified: 9 March 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2024-1646 Related CVEs: CVE-2024-1394 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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Debian 10 — c-ares — vulnerability — patch and remediation guide — diagnosis and fix on Debian 10

Debian 10 — c-ares — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 9 March 2021 Affected versions: Debian 10 (buster) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2021-3672 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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

Ubuntu 20.04 — fis-gtm — multiple vulnerabilities (8 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 9 March 2021 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7422-1 Related CVEs: CVE-2021-44492 CVE-2021-44498 CVE-2021-44500 CVE-2021-44502 CVE-2021-44506 CVE-2021-44508 CVE-2021-44509 CVE-2021-44510 Upstream summary: It was discovered that FIS-GT.M could incorrectly dereference memory in certain instances. An attacker could possibly use […]

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Ubuntu 16.04 — file-roller — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — file-roller — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 9 March 2021 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4927-1 Related CVEs: CVE-2020-36314 CVE-2020-11736 CVE-2019-16680 CVE-2016-7162 https://launchpad.net/bugs/1171236 Upstream summary: It was discovered that File Roller incorrectly handled symlinks. An attacker could possibly use this issue to expose sensitive information. […]

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Ubuntu 16.04 — libimage-exiftool-perl — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — libimage-exiftool-perl — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 9 March 2021 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4987-2 Related CVEs: CVE-2021-22204 Upstream summary: USN-4987-1 fixed a vulnerability in ExifTool. This update provides the corresponding update for Ubuntu 16.04 ESM. Original advisory details: It was discovered that ExifTool […]

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SLES 12 — gssproxy — vulnerability — patch and remediation guide — diagnosis and fix on SLES 12

SLES 12 — gssproxy — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 9 March 2021 Affected versions: SLES 12 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2021:1029-1 (see also SUSE bugzilla) Related CVEs: CVE-2020-12658 Upstream summary: gssproxy (aka gss-proxy) before 0.8.3 does not unlock cond_mutex before pthread exit in gp_worker_main() in gp_workers.c. NOTE: An upstream comment states "We […]

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Oracle Linux 8 — kernel — security and stability fixes — required update — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — kernel — security and stability fixes — required update (ELSA-2020-3218)

🟡 Medium   ⏱ 10–30 min  Last verified: 8 March 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-3218 Related CVEs: CVE-2019-20908 CVE-2020-15780 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & […]

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Common Problems 121619

Debian 9 Kernel Upgrade Leaves Old Kernels Unmanaged

🟢 Low   ⏱ 5–30 min  Last verified: 8 March 2021 Affected versions: Debian 9 📖 ~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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CHAT