Linux

Debian 12 — davfs2 — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — davfs2 — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 20 September 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2005-1774 CVE-2013-4362 Upstream summary: WEB-DAV Linux File System (davfs2) 0.2.3 does not properly enforce Unix permissions, which allows local users to write arbitrary files on a davfs2 mounted […]

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Debian 12 — bitlbee — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — bitlbee — multiple vulnerabilities (6 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 20 September 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2008-3920 CVE-2008-3969 CVE-2012-1187 CVE-2016-10188 CVE-2016-10189 CVE-2017-5668 Upstream summary: Unspecified vulnerability in BitlBee before 1.2.2 allows remote attackers to "recreate" and "hijack" existing accounts via unspecified vectors. Table of […]

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

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

🟢 Low   ⏱ 5–15 min  Last verified: 20 September 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2002-1914 CVE-2005-2096 Upstream summary: dump 0.4 b10 through b29 allows local users to cause a denial of service (execution prevention) by using flock() to lock the /etc/dumpdates file. […]

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

Debian 12 — tcpreen — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 20 September 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2007-6562 Upstream summary: Multiple stack-based buffer overflows in the use of FD_SET in TCPreen before 1.4.4 allow remote attackers to cause a denial of service via multiple concurrent […]

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Ubuntu 14.04 — zlib — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — zlib — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 20 September 2023 Affected versions: Ubuntu 14.04 (trusty) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7107-1 Related CVEs: CVE-2023-45853 CVE-2022-37434 CVE-2018-25032 Upstream summary: It was discovered that Minizip in zlib incorrectly handled certain zip header fields. An attacker could possibly use this issue to cause […]

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Ubuntu 22.04 — file — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — file — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 20 September 2023 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6359-1 Related CVEs: CVE-2022-48554 Upstream summary: It was discovered that file incorrectly handled certain malformed files. An attacker could use this issue to cause a denial of service, or possibly […]

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openSUSE Leap 15.5 — ImageMagick — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Leap 15.5

openSUSE Leap 15.5 — ImageMagick — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Leap 15.5 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2023:2344-1 (see also SUSE bugzilla) Related CVEs: CVE-2023-34153 CVE-2023-5341 CVE-2023-34474 CVE-2023-34151 Upstream summary: A vulnerability was found in ImageMagick. This security flaw causes a shell command injection vulnerability via video:vsync or […]

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How to Enable OCSP Stapling on Nginx on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Enable OCSP Stapling on Nginx on Debian 12

Introduction This guide explains how to Enable OCSP Stapling on Nginx on Debian 12 on Debian 12 Bookworm. Debian Bookworm uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 12 install with […]

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Alpine Linux 3.18 — wget — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux 3.18

Alpine Linux 3.18 — wget — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.18 / fixed in 1.20.3-r0 📖 ~4 min read  •  Source: Alpine secdb entry — wget 1.20.3-r0 Related CVEs: CVE-2019-5953 CVE-2018-20483 CVE-2018-0494 CVE-2017-13090 CVE-2017-6508 Upstream summary: Alpine main repository for vv3.18 ships wget 1.20.3-r0 which addresses CVE-2019-5953. Table of contents […]

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

Oracle Linux 9 — kernel — security and stability fixes — required update (ELSA-2023-0334)

🟠 High   ⏱ 15–60 min  Last verified: 19 September 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-0334 Related CVEs: CVE-2022-4139 CVE-2022-3077 CVE-2022-2964 CVE-2022-43945 CVE-2022-2959 CVE-2022-30594 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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