Package Management

SLES 15 — zsh — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — zsh — multiple vulnerabilities (7 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 12 February 2021 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2022:0732-1 (see also SUSE bugzilla) Related CVEs: CVE-2019-20044 CVE-2021-45444 CVE-2018-0502 CVE-2018-1100 CVE-2018-13259 CVE-2018-1083 CVE-2018-1071 Upstream summary: In Zsh before 5.8, attackers able to execute commands can regain privileges dropped by the –no-PRIVILEGED […]

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Gentoo Linux — mail-filter/postsrsd — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — mail-filter/postsrsd — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202107-08 Related CVEs: CVE-2020-35573 CVE-2021-35525 Upstream summary: Multiple vulnerabilities have been discovered in PostSRSd. Please review the CVE identifiers referenced below for details. Table of contents Symptom & Impact Environment & Reproduction […]

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

Oracle Linux 8 — freerdp and vinagre security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2020-4647)

🟡 Medium   ⏱ 10–30 min  Last verified: 11 February 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-4647 Related CVEs: CVE-2020-11085 CVE-2020-11087 CVE-2020-11525 CVE-2020-11039 CVE-2020-11044 CVE-2020-11522 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 117405

Failed to Fetch Repository 404 After Mirror Changes

🟡 Medium   ⏱ 5–30 min  Last verified: 11 February 2021 Affected versions: 20.04 📖 ~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 […]

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Ubuntu 20.04 — golang-1.14 — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — golang-1.14 — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 11 February 2021 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4758-1 Related CVEs: CVE-2020-24553 Upstream summary: It was discovered that Go applications incorrectly handled uploaded content. If a user were tricked into visiting a malicious page, a remote attacker could […]

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How to Set Up SELinux MLS Policy on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Set Up SELinux MLS Policy on Oracle Linux 8

Introduction Setting up set up selinux mls policy on oracle linux 8 on a Oracle Linux 8 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Set Up SELinux MLS Policy on Oracle Linux 8, with all the commands you need, the SELinux and firewalld […]

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Gentoo Linux — sys-libs/binutils-libs — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — sys-libs/binutils-libs — multiple vulnerabilities (7 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202208-30 Related CVEs: CVE-2021-3487 CVE-2021-3530 CVE-2021-3549 CVE-2021-20197 CVE-2021-20284 CVE-2021-20294 CVE-2021-45078 Upstream summary: Multiple vulnerabilities have been discovered in GNU Binutils. Please review the CVE identifiers referenced below for details. Table of contents […]

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Ubuntu 18.04 — rake — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — rake — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 11 February 2021 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4295-1 Related CVEs: CVE-2020-8130 Upstream summary: It was discovered that Rake incorrectly handled certain files. An attacker could use this issue to possibly execute arbitrary commands. Table of contents Symptom […]

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Ubuntu 14.04 — python-babel — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — python-babel — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 11 February 2021 Affected versions: Ubuntu 14.04 (trusty) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4962-1 Related CVEs: CVE-2021-20095 Upstream summary: It was discovered that Babel incorrectly handled certain inputs. An attacker could possibly use this issue to execute arbitrary code. Table of contents Symptom […]

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Debian 9 — mysql-connector-java — vulnerability — patch and remediation guide — diagnosis and fix on Debian 9

Debian 9 — mysql-connector-java — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 10 February 2021 Affected versions: Debian 9 (stretch) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2020-2875 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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