Linux

Debian 10 — tryton-server — vulnerability — patch and remediation guide — diagnosis and fix on Debian 10

Debian 10 — tryton-server — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 12 June 2023 Affected versions: Debian 10 (buster) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2022-26661 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 22.04 — atril — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — atril — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 12 June 2023 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7274-1 Related CVEs: CVE-2019-1010006 CVE-2019-11459 CVE-2023-51698 CVE-2023-52076 Upstream summary: It was discovered that Atril incorrectly handled certain PDF files. An attacker could possibly use this issue to cause a denial […]

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

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

🟠 High   ⏱ 15–60 min  Last verified: 12 June 2023 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6074-3 Related CVEs: https://launchpad.net/bugs/2020649 https://launchpad.net/bugs/2019782 CVE-2023-32205 CVE-2023-32206 CVE-2023-32207 CVE-2023-32208 CVE-2023-32209 CVE-2023-32210  +12 more Upstream summary: USN-6074-1 fixed vulnerabilities and USN-6074-2 fixed minor regressions in Firefox. The update introduced several minor […]

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SLES 15 — zchunk — vulnerability — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — zchunk — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 12 June 2023 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-CU-2023:3619-1 (see also SUSE bugzilla) Related CVEs: CVE-2023-46228 Upstream summary: zchunk before 1.3.2 has multiple integer overflows via malformed zchunk files to lib/comp/comp.c, lib/comp/zstd/zstd.c, lib/dl/multipart.c, or lib/header.c. Table of contents Symptom & […]

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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-2023-12874)

🟠 High   ⏱ 15–60 min  Last verified: 12 June 2023 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-12874 Related CVEs: CVE-2023-20588 CVE-2023-5090 CVE-2023-20569 CVE-2023-42753 CVE-2023-22024 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative […]

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

Oracle Linux 8 — Unbreakable Enterprise kernel-container — vulnerability — patch and remediation guide (ELSA-2023-12413)

🟠 High   ⏱ 15–60 min  Last verified: 12 June 2023 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-12413 Related CVEs: CVE-2023-32233 CVE-2023-30456 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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Alpine Linux 3.18 — gnuchess — vulnerability — patch and remediation guide — diagnosis and fix on Alpine Linux 3.18

Alpine Linux 3.18 — gnuchess — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.18 / fixed in 6.2.9-r0 📖 ~4 min read  •  Source: Alpine secdb entry — gnuchess 6.2.9-r0 Related CVEs: CVE-2021-30184 Upstream summary: Alpine community repository for vv3.18 ships gnuchess 6.2.9-r0 which addresses CVE-2021-30184. Table of contents Symptom & Impact Environment […]

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How to Configure PAM on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Configure PAM on RHEL 8

Pluggable Authentication Modules (PAM) is the authentication framework at the heart of every RHEL 8 login, password change, and session management operation. PAM allows system administrators to configure authentication policies without modifying individual applications — by editing stack files in /etc/pam.d/, you can enforce account lockout after failed attempts, require strong passwords, limit resource usage, […]

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Oracle Linux 9 — ghostscript — security and stability fixes — required update — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — ghostscript — security and stability fixes — required update (ELSA-2023-6544)

🟡 Medium   ⏱ 10–30 min  Last verified: 12 June 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-6544 Related CVEs: CVE-2023-28879 CVE-2023-38559 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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openSUSE Tumbleweed — cscreen — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — cscreen — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE security advisory (see also SUSE bugzilla) Related CVEs: CVE-2022-21945 CVE-2022-21946 Upstream summary: A Insecure Temporary File vulnerability in cscreen of openSUSE Factory allows local attackers to cause DoS for cscreen and a system […]

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