April 2021 - Page 27 of 66

FreeBSD 12 — linux-flashplayer — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — linux-flashplayer — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: Flash Player — arbitrary code execution Related CVEs: CVE-2017-11213 CVE-2017-11215 CVE-2017-11225 CVE-2017-11281 CVE-2017-11282 CVE-2017-11292 CVE-2017-2925 CVE-2017-2926  +12 more Upstream summary: Adobe reports: This update resolves a NULL pointer dereference vulnerability […]

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How to Configure Kerberos Authentication on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Configure Kerberos Authentication on RHEL 8

Kerberos is a mature, ticket-based network authentication protocol that allows services and users to prove their identity to one another without transmitting passwords over the network. MIT Kerberos is the reference implementation and is packaged in RHEL 8’s default repositories. Setting up a Key Distribution Center (KDC) gives you a centralised authentication infrastructure that integrates […]

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AlmaLinux 8 — libcmis — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — libcmis — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2020:4628 Related CVEs: CVE-2020-12802 CVE-2020-12803 Upstream summary: LibreOffice is an open source, community-developed office productivity suite. It includes key desktop applications, such as a word processor, a spreadsheet, a presentation manager, a […]

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Amazon Linux 2 — libcroco — vulnerability — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — libcroco — vulnerability — 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 ALAS2-2020-1521 Related CVEs: CVE-2020-12825 Upstream summary: A stack overflow flaw was found in libcroco. A service using libcroco's CSS parser could be crashed by a local, authenticated attacker, or an […]

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Oracle Linux 8 — SAN boot may fail when using an Emulex 32GB FC Adapter — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — SAN boot may fail when using an Emulex 32GB FC Adapter

🟠 High   ⏱ 5–30 min  Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: Oracle Bug 31898488 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 […]

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openSUSE Tumbleweed — libonig5 — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — libonig5 — multiple vulnerabilities (7 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory SUSE-IU-2022:1093-1 (see also SUSE bugzilla) Related CVEs: CVE-2019-19203 CVE-2019-19204 CVE-2019-19246 CVE-2019-13224 CVE-2019-13225 CVE-2019-19012 CVE-2020-26159 Upstream summary: An issue was discovered in Oniguruma 6.x before 6.9.4_rc2. In the function gb18030_mbc_enc_len in file gb18030.c, […]

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FreeBSD 13 — syslog-ng — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — syslog-ng — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: syslog-ng2 — startup directory leakage in the chroot environment Related CVEs: CVE-2008-5110 Upstream summary: Florian Grandel reports: I have not had the time to analyze all of syslog-ng code. But […]

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How to Set Up SSH Two-Factor Authentication on SLES 12 — step-by-step SUSE Linux Enterprise 12 tutorial on Progressive Robot

How to Set Up SSH Two-Factor Authentication on SLES 12

Introduction This tutorial covers How to Set Up SSH Two-Factor Authentication on SLES 12 on SLES 12. SLES 12 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Prerequisites Ensure your SLES 12 system is up to date: […]

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