2020 - Page 551 of 735

How to Implement Just-In-Time (JIT) Administration on Windows Server 2019 — step-by-step Windows Server 2019 tutorial on Progressive Robot

How to Implement Just-In-Time (JIT) Administration on Windows Server 2019

Introduction to Just-In-Time Administration Just-In-Time (JIT) Administration is a privileged access management practice where elevated permissions are granted only for the duration required to complete a specific task—typically minutes or hours—after which they are automatically revoked. This eliminates standing privileges: administrators no longer have persistent Domain Admin or local admin rights that an attacker can […]

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

Oracle Linux 8 — bind — vulnerability — patch and remediation guide (ELSA-2020-2338)

  • April 1, 2020
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 1 April 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-2338 Related CVEs: CVE-2020-8617 CVE-2020-8616 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & […]

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Oracle Linux 8 — libjpeg-turbo — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — libjpeg-turbo — vulnerability — patch and remediation guide (ELSA-2025-7540)

  • April 1, 2020
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 1 April 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2025-7540 Related CVEs: CVE-2020-13790 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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openSUSE Tumbleweed — mkvtoolnix — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — mkvtoolnix — vulnerability — patch and remediation guide

  • April 1, 2020
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2018:3819-1 (see also SUSE bugzilla) Related CVEs: CVE-2018-4022 Upstream summary: A use-after-free vulnerability exists in the way MKVToolNix MKVINFO v25.0.0 handles the MKV (matroska) file format. A specially crafted MKV file can […]

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Common Problems 121125

Debian 10 GRUB Update Fails After Package Changes

  • March 31, 2020
  • Linux
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🟠 High   ⏱ 5–30 min  Last verified: 31 March 2020 Affected versions: Debian 10 📖 ~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 AppArmor on SLES 12 — step-by-step SUSE Linux Enterprise 12 tutorial on Progressive Robot

How to Configure AppArmor on SLES 12

Introduction This tutorial covers How to Configure AppArmor 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. Step 1 — Check AppArmor Status systemctl status apparmor aa-status Step 2 — […]

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FreeBSD 12 — open-motif-devel — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — open-motif-devel — multiple vulnerabilities (2 CVEs) — patch and remediation guide

  • March 31, 2020
  • BSD
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🟢 Low   ⏱ 5–15 min  Last verified: 31 March 2020 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: xpm — image decoding vulnerabilities Related CVEs: CVE-2004-0687 CVE-2004-0688 Upstream summary: Chris Evans discovered several vulnerabilities in the libXpm image decoder: A stack-based buffer overflow in xpmParseColors An integer overflow […]

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FreeBSD 12 — pgbouncer — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — pgbouncer — multiple vulnerabilities (2 CVEs) — patch and remediation guide

  • March 31, 2020
  • BSD
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🟢 Low   ⏱ 5–15 min  Last verified: 31 March 2020 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: pgbouncer — failed auth_query lookup leads to connection as auth_user Related CVEs: CVE-2015-4054 CVE-2015-6817 Upstream summary: PgBouncer reports: New auth_user functionality introduced in 1.6 allows login as auth_user when client […]

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