Security Hardening

FreeBSD 12 — apache+mod_ssl+mod_accel+mod_deflate — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — apache+mod_ssl+mod_accel+mod_deflate — multiple vulnerabilities (3 CVEs) — patch and remediation guide

  • August 25, 2019
  • BSD
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 August 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: apache — Prevent chunk-size integer overflow on platforms where sizeof(int) < sizeof(long) Related CVEs: CVE-2005-2088 CVE-2005-3352 CVE-2006-3747 Upstream summary: Apache ChangeLog reports: Integer overflow in the ap_proxy_send_fb function in proxy/proxy_util.c […]

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FreeBSD 12 — rubygem-jquery-rails — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — rubygem-jquery-rails — multiple vulnerabilities (5 CVEs) — patch and remediation guide

  • August 25, 2019
  • BSD
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 August 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: rubygem-rails — multiple vulnerabilities Related CVEs: CVE-2015-1840 CVE-2015-3224 CVE-2015-3225 CVE-2015-3226 CVE-2015-3227 Upstream summary: Ruby on Rails blog: Rails 3.2.22, 4.1.11 and 4.2.2 have been released, along with web console and […]

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Oracle Linux 8 — pki-deps:10.6 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — pki-deps:10.6 — vulnerability — patch and remediation guide (ELSA-2019-2720)

  • August 25, 2019
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 August 2019 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2019-2720 Related CVEs: CVE-2019-12384 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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Common Problems 119006

Ubuntu 14.04 LTS – DHCP lease not renewing causes network loss – Fix & Prevention

  • August 24, 2019
  • Linux
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🟠 High   ⏱ 5–30 min  Last verified: 24 August 2019 Affected versions: Ubuntu 14.04 LTS 📖 ~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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Common Problems 117902

NO_PUBKEY Error for Third-Party apt Repository

🟡 Medium   ⏱ 5–30 min  Last verified: 24 August 2019 📖 ~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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How to Install Gradle Build Tool on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Install Gradle Build Tool on Debian 9

  • August 24, 2019
  • Linux
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Introduction This guide explains how to Install Gradle Build Tool on Debian 9 on Debian 9 Stretch. Debian Stretch 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 9 install with the […]

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Common Problems 115463

RHEL 7 – SELinux AVC Denial Prevents Daemon from Binding Port

  • August 24, 2019
  • Linux
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🟡 Medium   ⏱ 5–30 min  Last verified: 24 August 2019 📖 ~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 112532

Windows Server 2019 – RDP NLA fails with CredSSP encryption oracle error – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 24 August 2019 Affected versions: Windows Server 2019 📖 ~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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FreeBSD 12 — mpv — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — mpv — vulnerability — patch and remediation guide

  • August 24, 2019
  • BSD
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🟢 Low   ⏱ 5–15 min  Last verified: 24 August 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: mpv — arbitrary code execution via crafted website Related CVEs: CVE-2018-6360 Upstream summary: mpv developers report: mpv through 0.28.0 allows remote attackers to execute arbitrary code via a crafted web […]

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