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Ubuntu 18.04 — whoopsie — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — whoopsie — multiple vulnerabilities (6 CVEs) — patch and remediation guide

  • May 4, 2021
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 4 May 2021 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4450-1 Related CVEs: CVE-2020-11937 CVE-2020-12135 CVE-2020-15570 https://launchpad.net/bugs/1850608 CVE-2019-11484 CVE-2019-11476 Upstream summary: Seong-Joong Kim discovered that Whoopsie incorrectly handled memory. A local attacker could use this issue to cause Whoopsie to […]

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Oracle Linux 8 — Unbreakable Enterprise kernel-container — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — Unbreakable Enterprise kernel-container — vulnerability — patch and remediation guide (ELSA-2021-9461)

  • May 4, 2021
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 4 May 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-9461 Related CVEs: CVE-2021-3739 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 13 — ntp — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — ntp — multiple vulnerabilities (20 CVEs) — patch and remediation guide

  • May 4, 2021
  • BSD
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🟠 High   ⏱ 15–60 min  Last verified: 4 May 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: ntp — Multiple vulnerabilities Related CVEs: CVE-2009-0159 CVE-2009-1252 CVE-2013-5211 CVE-2014-9293 CVE-2014-9294 CVE-2014-9295 CVE-2014-9296 CVE-2015-1798  +12 more Upstream summary: nwtime.org reports: Three ntp vulnerabilities, Depending on configuration, may have little impact […]

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How to Configure Docker Resource Limits on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Configure Docker Resource Limits on Debian 9

  • May 4, 2021
  • Linux
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Introduction Debian 9 Stretch is built around the ethos of stability and free software. Setting up configure docker resource limits on debian 9 on Stretch leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Stretch freeze. Follow each step carefully and […]

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Oracle Linux 8 — nodejs:14 — security and stability fixes — required update — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — nodejs:14 — security and stability fixes — required update (ELSA-2021-0744)

  • May 3, 2021
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 3 May 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-0744 Related CVEs: CVE-2021-22884 CVE-2021-22883 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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AlmaLinux 8 — adcli — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — adcli — vulnerability — patch and remediation guide

  • May 3, 2021
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALBA-2021:4453 Upstream summary: For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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IBM AIX 7.1 — CVE-2020-4757 — xss — patch and remediation guide — diagnosis and fix on IBM AIX 7.1

IBM AIX 7.1 — CVE-2020-4757 — xss — patch and remediation guide

🟡 Medium   ⏱ 15–45 min  Last verified: 3 May 2021 Affected versions: IBM AIX 7.1 📖 ~4 min read  •  Source: NVD CVE-2020-4757, IBM Support Bulletin CVE: CVE-2020-4757 NVD summary: IBM FileNet Content Manager and IBM Content Navigator 3.0.CD is vulnerable to stored cross-site scripting. This vulnerability allows users to embed arbitrary JavaScript code […]

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FreeBSD 13 — ruby+nopthreads — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — ruby+nopthreads — multiple vulnerabilities (4 CVEs) — patch and remediation guide

  • May 3, 2021
  • BSD
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🟡 Medium   ⏱ 10–30 min  Last verified: 3 May 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: Multiple implementations — DoS via hash algorithm collision Related CVEs: CVE-2011-4815 CVE-2011-4838 CVE-2011-5036 CVE-2011-5037 Upstream summary: oCERT reports: A variety of programming languages suffer from a denial-of-service (DoS) condition against […]

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FreeBSD 13 — enscript-letterdj — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — enscript-letterdj — multiple vulnerabilities (5 CVEs) — patch and remediation guide

  • May 3, 2021
  • BSD
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🟡 Medium   ⏱ 10–30 min  Last verified: 3 May 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: enscript — arbitrary code execution vulnerability Related CVEs: CVE-2004-1184 CVE-2004-1185 CVE-2004-1186 CVE-2008-3863 CVE-2008-4306 Upstream summary: Ulf Harnhammar of Secunia Research reports: Stack-based buffer overflow in the read_special_escape function in src/psgen.c […]

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AlmaLinux 8 — bzip2 — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — bzip2 — vulnerability — patch and remediation guide

  • May 3, 2021
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2025:0733 Related CVEs: CVE-2019-12900 Upstream summary: The bzip2 packages contain a freely available, high-quality data compressor. It provides both standalone compression and decompression utilities, as well as a shared library for use […]

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