Troubleshooting

FreeBSD 12 — postgresql95-server — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — postgresql95-server — multiple vulnerabilities (20 CVEs) — patch and remediation guide

  • June 16, 2020
  • BSD
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🟠 High   ⏱ 15–60 min  Last verified: 16 June 2020 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: PostgresSQL — TYPE in pg_temp execute arbitrary SQL during `SECURITY DEFINER` execution Related CVEs: CVE-2016-0766 CVE-2016-0773 CVE-2016-2193 CVE-2016-3065 CVE-2016-5423 CVE-2016-5424 CVE-2017-15098 CVE-2017-15099  +12 more Upstream summary: The PostgreSQL project reports: […]

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How to Install Docker CE on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Install Docker CE on Debian 10

  • June 16, 2020
  • Linux
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Introduction How to Install Docker CE on Debian 10 is a fundamental operation for any administrator maintaining a Debian 10 Buster server. Debian 10 Buster ships with the Linux 6.12 kernel, updated toolchains, and a fully refreshed package archive — meaning version numbers, configuration file paths, and some dependency chains differ from Debian 10. This […]

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Debian 9 — netty — vulnerability — patch and remediation guide — diagnosis and fix on Debian 9

Debian 9 — netty — vulnerability — patch and remediation guide

  • June 16, 2020
  • Linux
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🟢 Low   ⏱ 5–15 min  Last verified: 16 June 2020 Affected versions: Debian 9 (stretch) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-16869 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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Ubuntu 16.04 — evince — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — evince — multiple vulnerabilities (6 CVEs) — patch and remediation guide

  • June 16, 2020
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 16 June 2020 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4067-1 Related CVEs: CVE-2019-1010006 https://launchpad.net/bugs/1794848 https://launchpad.net/bugs/1788929 CVE-2019-11459 CVE-2017-1000159 CVE-2017-1000083 Upstream summary: It was discovered that Evince incorrectly handled certain PDF files. An attacker could possibly use this issue to cause […]

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Oracle Linux 8 — nodejs:12 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — nodejs:12 — vulnerability — patch and remediation guide (ELSA-2020-0598)

  • June 16, 2020
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 16 June 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-0598 Related CVEs: CVE-2019-15606 CVE-2019-15605 CVE-2019-15604 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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openSUSE Tumbleweed — autoyast2 — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — autoyast2 — vulnerability — patch and remediation guide

  • June 16, 2020
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2020:0676-1 (see also SUSE bugzilla) Related CVEs: CVE-2019-18905 Upstream summary: A Insufficient Verification of Data Authenticity vulnerability in autoyast2 of SUSE Linux Enterprise Server 12, SUSE Linux Enterprise Server 15 allows remote […]

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

openSUSE Tumbleweed — tre — vulnerability — patch and remediation guide

  • June 15, 2020
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2020:0554-1 (see also SUSE bugzilla) Related CVEs: CVE-2016-8859 Upstream summary: Multiple integer overflows in the TRE library and musl libc allow attackers to cause memory corruption via a large number of (1) […]

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Common Problems 120974

Debian 10 – apt update shows NO_PUBKEY and rejects repository signatures

  • June 15, 2020
  • Linux
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🟠 High   ⏱ 5–30 min  Last verified: 15 June 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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Common Problems 118536

Ubuntu 16.04 LTS – high CPU caused by kworker threads

  • June 15, 2020
  • Linux
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🟠 High   ⏱ 5–30 min  Last verified: 15 June 2020 Affected versions: Ubuntu 16.04 LTS Ubuntu 16.04 Ubuntu 16.04.7 📖 ~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 […]

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Common Problems 118477

Ubuntu 16.04 LTS clock drift and NTP synchronization failures

  • June 15, 2020
  • Linux
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🟡 Medium   ⏱ 5–30 min  Last verified: 15 June 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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