Linux

Oracle Linux 9 — varnish — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — varnish — vulnerability — patch and remediation guide (ELSA-2023-5924)

🟠 High   ⏱ 15–60 min  Last verified: 12 January 2024 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-5924 Related CVEs: CVE-2023-44487 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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Oracle Linux 9 — xorg-x11-server-Xwayland — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — xorg-x11-server-Xwayland — vulnerability — patch and remediation guide (ELSA-2023-2249)

🟡 Medium   ⏱ 10–30 min  Last verified: 12 January 2024 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-2249 Related CVEs: CVE-2023-0494 CVE-2022-46342 CVE-2022-3550 CVE-2022-46344 CVE-2022-46343 CVE-2022-46340 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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Alpine Linux 3.18 — wavpack — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux 3.18

Alpine Linux 3.18 — wavpack — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.18 / fixed in 5.5.0-r0 📖 ~4 min read  •  Source: Alpine secdb entry — wavpack 5.5.0-r0 Related CVEs: CVE-2021-44269 CVE-2020-35738 CVE-2019-1010319 CVE-2019-1010317 CVE-2019-1010315 CVE-2019-11498 CVE-2018-19840 CVE-2018-19841  +12 more Upstream summary: Alpine community repository for vv3.18 ships wavpack 5.5.0-r0 which […]

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Alpine Linux 3.18 — postgresql12 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux 3.18

Alpine Linux 3.18 — postgresql12 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.18 / fixed in 12.9-r0 📖 ~4 min read  •  Source: Alpine secdb entry — postgresql12 12.9-r0 Related CVEs: CVE-2021-23214 CVE-2021-23222 CVE-2021-3677 CVE-2020-25694 CVE-2020-25695 CVE-2020-25696 CVE-2020-14349 CVE-2020-14350  +12 more Upstream summary: Alpine community repository for vv3.18 ships postgresql12 12.9-r0 which […]

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How to Set Up Cron Jobs and Scheduled Tasks on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Set Up Cron Jobs and Scheduled Tasks on Debian 12

Introduction How to Set Up Cron Jobs and Scheduled Tasks on Debian 12 is a fundamental operation for any administrator maintaining a Debian 12 Bookworm server. Debian 12 Bookworm ships with the Linux 6.12 kernel, updated toolchains, and a fully refreshed package archive — meaning version numbers, configuration file paths, and some dependency chains differ […]

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How to Configure Redis Cluster and Sentinel on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Configure Redis Cluster and Sentinel on RHEL 9

A single Redis instance has two failure modes: if the server goes down, all cached data is lost and every request hits the origin database; and if the dataset grows beyond a single server’s RAM, there’s no built-in way to distribute it. Redis provides two solutions: Redis Sentinel for high availability (automatic failover with a […]

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Amazon Linux 2 — opensc — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — opensc — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2-2024-2566 Related CVEs: CVE-2023-5992 CVE-2023-40660 CVE-2023-40661 CVE-2019-15945 CVE-2019-15946 CVE-2019-19479 CVE-2019-20792 CVE-2020-26570  +12 more Upstream summary: A vulnerability was found in OpenSC where PKCS#1 encryption padding removal is not implemented as […]

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openSUSE Tumbleweed — python38-Django — multiple vulnerabilities (11 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — python38-Django — multiple vulnerabilities (11 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2023:0075-1 (see also SUSE bugzilla) Related CVEs: CVE-2023-24580 CVE-2023-23969 CVE-2022-41323 CVE-2022-36359 CVE-2022-34265 CVE-2022-28346 CVE-2022-28347 CVE-2022-23833  +3 more Upstream summary: An issue was discovered in the Multipart Request Parser in Django 3.2 before […]

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Debian 12 — libjpeg — multiple vulnerabilities (18 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — libjpeg — multiple vulnerabilities (18 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 11 January 2024 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2021-39514 CVE-2021-39515 CVE-2021-39516 CVE-2021-39517 CVE-2021-39518 CVE-2021-39519 CVE-2021-39520 CVE-2022-31620  +10 more Upstream summary: An issue was discovered in libjpeg through 2020021. An uncaught floating point exception in the function […]

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Debian 12 — almanah — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — almanah — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 11 January 2024 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2013-1853 Upstream summary: Almanah Diary 0.9.0 and 0.10.0 does not encrypt the database when closed, which allows local users to obtain sensitive information by reading the database. Table […]

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