IT, Cloud & DevOps Blog

openSUSE Tumbleweed — libesmtp6_2_0 — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — libesmtp6_2_0 — vulnerability — 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-2021:1235-1 (see also SUSE bugzilla) Related CVEs: CVE-2019-19977 Upstream summary: libESMTP through 1.0.6 mishandles domain copying into a fixed-size buffer in ntlm_build_type_2 in ntlm/ntlmstruct.c, as demonstrated by a stack-based buffer over-read. Table […]

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Oracle Linux 8 — openssh — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — openssh — vulnerability — patch and remediation guide (ELSA-2021-4368)

🟡 Medium   ⏱ 10–30 min  Last verified: 7 May 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-4368 Related CVEs: CVE-2020-14145 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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FreeBSD 12 — firefox — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — firefox — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 7 May 2020 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: firefox — Memory safety bugs present in Firefox 150 Related CVEs: CVE-2004-0597 CVE-2004-0598 CVE-2004-0599 CVE-2004-0717 CVE-2004-0718 CVE-2004-0721 CVE-2004-0722 CVE-2004-0758  +12 more Upstream summary: https://www.mozilla.org/en-US/security/advisories/mfsa2026-40/ reports: Memory safety bugs present in […]

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Arch Linux — lib32-libcurl-gnutls — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — lib32-libcurl-gnutls — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-201805-16 Related CVEs: CVE-2018-1000301 CVE-2018-1000300 CVE-2019-5436 CVE-2019-5435 CVE-2019-3823 CVE-2019-3822 CVE-2018-16890 CVE-2018-16840  +12 more Upstream summary: Type: multiple issues. Status: Fixed. Affected: 7.59.0-1. Fixed in: 7.60.0-1. Group: AVG-697. Table of contents […]

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Common Problems 115520

httpd Returns 403 Because of SELinux Context

🟡 Medium   ⏱ 5–30 min  Last verified: 6 May 2020 📖 ~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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Common Problems 113060

Windows Server 2016 — VPN sessions fail due to MTU mismatch and packet fragmentation — Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 6 May 2020 Affected versions: Windows Server 2016 📖 ~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 […]

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How to Configure PostgreSQL Remote Access on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Configure PostgreSQL Remote Access on Debian 9

Introduction Deploying configure postgresql remote access on debian 9 on a Debian 9 Stretch 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 You will […]

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FreeBSD 12 — evince-lite — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — evince-lite — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 6 May 2020 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: evince and atril — command injection vulnerability in CBT handler Related CVEs: CVE-2017-1000083 Upstream summary: GNOME reports: The comic book backend in evince 3.24.0 (and earlier) is vulnerable to a […]

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FreeBSD 12 — darktable — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — darktable — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 6 May 2020 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: dcraw — integer overflow condition Related CVEs: CVE-2015-3885 Upstream summary: ocert reports: The dcraw tool, as well as several other projects re-using its code, suffers from an integer overflow condition […]

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