Linux

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

Ubuntu 18.04 — sniproxy — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 1 January 2024 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6148-1 Related CVEs: CVE-2023-25076 Upstream summary: It was discovered that SNI Proxy did not properly handle wildcard backend hosts. An attacker could possibly use this issue to cause a buffer […]

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Alpine Linux 3.19 — gradle — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux 3.19

Alpine Linux 3.19 — gradle — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.19 / fixed in 7.6.1-r0 📖 ~4 min read  •  Source: Alpine secdb entry — gradle 7.6.1-r0 Related CVEs: CVE-2023-26053 CVE-2021-32751 CVE-2020-11979 Upstream summary: Alpine community repository for vv3.19 ships gradle 7.6.1-r0 which addresses CVE-2023-26053. Table of contents Symptom & […]

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

Oracle Linux 9 — skopeo — vulnerability — patch and remediation guide (ELSA-2023-6363)

🟡 Medium   ⏱ 10–30 min  Last verified: 1 January 2024 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-6363 Related CVEs: CVE-2023-24536 CVE-2023-24538 CVE-2022-41723 CVE-2023-24540 CVE-2022-41724 CVE-2023-29406 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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How to Configure ZFS on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Configure ZFS on Debian 12

Introduction Debian 12 Bookworm is built around the ethos of stability and free software. Setting up configure zfs on debian 12 on Bookworm leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Bookworm freeze. Follow each step carefully and the resulting […]

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How to Install and Configure ufw Firewall on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Install and Configure ufw Firewall on Debian 12

Introduction Deploying install and configure ufw firewall on debian 12 on a Debian 12 Bookworm machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites Ensure […]

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openSUSE Leap 15.5 — python3-cryptography — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Leap 15.5

openSUSE Leap 15.5 — python3-cryptography — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Leap 15.5 📖 ~4 min read  •  Source: SUSE advisory SUSE-CU-2023:4179-1 (see also SUSE bugzilla) Related CVEs: CVE-2023-49083 Upstream summary: cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. Calling `load_pem_pkcs7_certificates` or `load_der_pkcs7_certificates` could lead to […]

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Debian 12 — checkstyle — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — checkstyle — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 31 December 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-10782 CVE-2019-9658 Upstream summary: All versions of com.puppycrawl.tools:checkstyle before 8.29 are vulnerable to XML External Entity (XXE) Injection due to an incomplete fix for CVE-2019-9658. Table of contents […]

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Debian 12 — apache-directory-api — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — apache-directory-api — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 31 December 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2015-3250 Upstream summary: Apache Directory LDAP API before 1.0.0-M31 allows attackers to conduct timing attacks via unspecified vectors. Table of contents Symptom & Impact Environment & Reproduction Root […]

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

Debian 12 — swaylock — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 31 December 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2022-26530 Upstream summary: swaylock before 1.6 allows attackers to trigger a crash and achieve unlocked access to a Wayland compositor. Table of contents Symptom & Impact Environment & […]

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