Logging Monitoring

How to Configure Postfix Mail Server on FreeBSD 14 — step-by-step FreeBSD 14 tutorial on Progressive Robot

How to Configure Postfix Mail Server on FreeBSD 14

Introduction This guide explains how to Configure Postfix Mail Server on FreeBSD 14 on FreeBSD 14. FreeBSD uses the pkg(8) binary package manager, rc.conf(5) for service startup configuration, and pf(4) as its primary packet filter. There is no SELinux or AppArmor — instead, FreeBSD provides the MAC (Mandatory Access Control) framework and Capsicum for fine-grained […]

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Common Problems 116569

Ubuntu 24.04 LTS Apache2 with PHP-FPM Returns 503 Backend Unavailable

🟡 Medium   ⏱ 5–30 min  Last verified: 20 October 2024 📖 ~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 References & Further […]

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NetBSD 10.0 — libXcursor — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on NetBSD 10.0

NetBSD 10.0 — libXcursor — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: NetBSD 10.0 📖 ~4 min read  •  Source: pkgsrc audit-packages entry Related CVEs: CVE-2017-16612 CVE-2015-9262 Upstream summary: pkgsrc audit-packages flagged libXcursor<1.1.14 for vulnerability class 'buffer-overflow'. Reference: http://www.x.org/wiki/Development/Security/Advisory-2013-05-23 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step […]

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FreeBSD 14 — gstreamer1-libav — multiple vulnerabilities (11 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 14

FreeBSD 14 — gstreamer1-libav — multiple vulnerabilities (11 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 20 October 2024 Affected versions: FreeBSD 14 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: ffmpeg — multiple vulnerabilities Related CVEs: CVE-2015-3395 CVE-2015-3417 CVE-2015-6818 CVE-2015-6819 CVE-2015-6820 CVE-2015-6821 CVE-2015-6822 CVE-2015-6823  +3 more Upstream summary: NVD reports: The decode_ihdr_chunk function in libavcodec/pngdec.c in FFmpeg before 2.7.2 does […]

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

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

🟢 Low   ⏱ 5–15 min  Last verified: 20 October 2024 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2013-2142 CVE-2016-5104 Upstream summary: userpref.c in libimobiledevice 1.1.4, when $HOME and $XDG_CONFIG_HOME are not set, allows local users to overwrite arbitrary files via a symlink attack on (1) […]

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NetBSD 10.0 — php55-fpm — vulnerability — patch and remediation guide — diagnosis and fix on NetBSD 10.0

NetBSD 10.0 — php55-fpm — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: NetBSD 10.0 📖 ~4 min read  •  Source: pkgsrc audit-packages entry Related CVEs: CVE-2014-0185 Upstream summary: pkgsrc audit-packages flagged php55-fpm<5.5.12 for vulnerability class 'local-privilege-escalation'. Reference: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-0185 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis […]

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

Debian 12 — barcode — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 20 October 2024 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2018-25154 Upstream summary: GNU Barcode 0.99 contains a buffer overflow vulnerability in its code 93 encoding process that allows attackers to trigger memory corruption. Attackers can exploit boundary […]

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NetBSD 10.0 — clojure — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on NetBSD 10.0

NetBSD 10.0 — clojure — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: NetBSD 10.0 📖 ~4 min read  •  Source: pkgsrc audit-packages entry Related CVEs: CVE-2017-20189 CVE-2024-22871 Upstream summary: pkgsrc audit-packages flagged clojure<1.9.0 for vulnerability class 'arbitrary-code-execution'. Reference: https://nvd.nist.gov/vuln/detail/CVE-2017-20189 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step […]

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Debian 12 — ssvnc — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — ssvnc — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 20 October 2024 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2018-20020 CVE-2018-20021 CVE-2018-20022 CVE-2018-20024 Upstream summary: LibVNC before commit 7b1ef0ffc4815cab9a96c7278394152bdc89dc4d contains heap out-of-bound write vulnerability inside structure in VNC client code that can result remote code execution Table […]

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