Logging Monitoring

Gentoo Linux — app-admin/salt — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — app-admin/salt — multiple vulnerabilities (20 CVEs) — patch and remediation guide

  • April 28, 2021
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202310-22 Related CVEs: CVE-2020-28243 CVE-2020-28972 CVE-2020-35662 CVE-2021-3144 CVE-2021-3148 CVE-2021-3197 CVE-2021-21996 CVE-2021-25281  +12 more Upstream summary: Multiple vulnerabilities have been discovered in Salt. Please review the CVE identifiers referenced below for details. Table […]

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Oracle Linux 8 — kernel — security and stability fixes — required update — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — kernel — security and stability fixes — required update (ELSA-2020-1372)

  • April 27, 2021
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 27 April 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-1372 Related CVEs: CVE-2019-18660 CVE-2019-15030 CVE-2019-15031 CVE-2019-19527 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches […]

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Common Problems 118549

Ubuntu 16.04 LTS Interrupted Upgrade Leaves dpkg Broken

  • April 27, 2021
  • Linux
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🟠 High   ⏱ 5–30 min  Last verified: 27 April 2021 Affected versions: 16.04 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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FreeBSD 13 — py39-rencode — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — py39-rencode — vulnerability — patch and remediation guide

  • April 27, 2021
  • BSD
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🟢 Low   ⏱ 5–15 min  Last verified: 27 April 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: py39-rencode — infinite loop that could lead to Denial of Service Related CVEs: CVE-2021-40839 Upstream summary: NIST reports: The rencode package through 1.0.6 for Python allows an infinite loop in […]

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Ubuntu 16.04 — freeimage — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

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

  • April 27, 2021
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 27 April 2021 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6586-1 Related CVEs: CVE-2019-12211 CVE-2019-12213 CVE-2020-21427 CVE-2020-21428 CVE-2020-22524 CVE-2016-5684 Upstream summary: It was discovered that FreeImage incorrectly handled certain memory operations. If a user were tricked into opening a crafted […]

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Common Problems 117627

Ubuntu 20.04 LTS – rsyslog forwarding stops after remote TLS policy update – Fix & Prevention

  • April 27, 2021
  • Linux
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🟠 High   ⏱ 5–30 min  Last verified: 27 April 2021 Affected versions: Ubuntu 20.04 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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Ubuntu 18.04 — weechat — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — weechat — multiple vulnerabilities (5 CVEs) — patch and remediation guide

  • April 27, 2021
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 27 April 2021 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5258-1 Related CVEs: CVE-2017-14727 CVE-2020-8955 CVE-2020-9759 CVE-2020-9760 CVE-2021-40516 Upstream summary: Stuart Nevans Locke discovered that WeeChat's relay plugin insecurely handled malformed websocket frames. A remote attacker in control of a […]

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openSUSE Tumbleweed — ant — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — ant — multiple vulnerabilities (6 CVEs) — patch and remediation guide

  • April 27, 2021
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory SUSE-CU-2023:712-1 (see also SUSE bugzilla) Related CVEs: CVE-2021-36373 CVE-2021-36374 CVE-2013-1571 CVE-2018-10886 CVE-2020-11979 CVE-2020-1945 Upstream summary: When reading a specially crafted TAR archive an Apache Ant build can be made to allocate large […]

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SLES 15 — perl-Net-CIDR-Lite — vulnerability — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — perl-Net-CIDR-Lite — vulnerability — patch and remediation guide

  • April 27, 2021
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 27 April 2021 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2024:1256-1 (see also SUSE bugzilla) Related CVEs: CVE-2021-47154 Upstream summary: The Net::CIDR::Lite module before 0.22 for Perl does not properly consider extraneous zero characters at the beginning of an IP address string, […]

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How to Tune Kernel Parameters with sysctl on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Tune Kernel Parameters with sysctl on Oracle Linux 8

Introduction Setting up tune kernel parameters with sysctl on oracle linux 8 on a Oracle Linux 8 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Tune Kernel Parameters with sysctl on Oracle Linux 8, with all the commands you need, the SELinux and firewalld […]

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