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Gentoo Linux — media-video/mpv — vulnerability — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — media-video/mpv — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202107-46 Related CVEs: CVE-2021-30145 Upstream summary: mpv uses untrusted input within format strings. Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary […]

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Debian 11 — empathy — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — empathy — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 2 June 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2011-3635 CVE-2011-4170 Upstream summary: Cross-site scripting (XSS) vulnerability in the theme_adium_append_message function in empathy-theme-adium.c in the Adium theme in libempathy-gtk in Empathy 3.2.1 and earlier allows remote attackers […]

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

Ubuntu 20.04 — onionshare — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 2 June 2022 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7625-1 Related CVEs: CVE-2018-19960 CVE-2022-21689 Upstream summary: It was discovered that OnionShare could be exploited when run with the –debug argument. A local attacker could possibly use this issue to […]

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Ubuntu 20.04 — mc — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — mc — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 2 June 2022 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5160-1 Related CVEs: CVE-2021-36370 Upstream summary: It was discovered that Midnight Commander would not check server fingerprints when establishing an SFTP connection. If a remote attacker were able to intercept […]

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Ubuntu 16.04 — apache-log4j1.2 — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — apache-log4j1.2 — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 2 June 2022 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5998-1 Related CVEs: CVE-2022-23302 CVE-2022-23305 CVE-2022-23307 CVE-2019-17571 CVE-2021-4104 Upstream summary: It was discovered that the SocketServer component of Apache Log4j 1.2 incorrectly handled deserialization. An attacker could possibly use this […]

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Oracle Linux 8 — Unbreakable Enterprise kernel — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — Unbreakable Enterprise kernel — vulnerability — patch and remediation guide (ELSA-2022-9930)

🟠 High   ⏱ 15–60 min  Last verified: 2 June 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-9930 Related CVEs: CVE-2022-3028 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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How to Configure SELinux on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Configure SELinux on RHEL 9

SELinux (Security-Enhanced Linux) is a mandatory access control (MAC) framework built into the Linux kernel, developed by the NSA and now maintained as a core part of RHEL. Unlike traditional discretionary access control (DAC) where file permissions determine access, SELinux enforces policies that confine every process to the minimum resources it legitimately needs — even […]

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Common Problems 116963

Ubuntu 22.04 LTS – snap downloads stall or hang indefinitely – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 2 June 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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CHAT