Operations

Debian 11 — pacemaker — multiple vulnerabilities (9 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — pacemaker — multiple vulnerabilities (9 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 9 April 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2010-2496 CVE-2011-5271 CVE-2013-0281 CVE-2016-7035 CVE-2016-7797 CVE-2018-16877 CVE-2018-16878 CVE-2019-3885  +1 more Upstream summary: stonith-ng in pacemaker and cluster-glue passed passwords as commandline parameters, making it possible for local attackers […]

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Debian 11 — mtink — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — mtink — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 9 April 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2004-1110 Upstream summary: The mtink status monitor before 1.0.5 for Epson printers allows local users to overwrite arbitrary files via a symlink attack on the epson temporary file. […]

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Debian 11 — ruby-minitar — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — ruby-minitar — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 9 April 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2016-10173 Upstream summary: Directory traversal vulnerability in the minitar before 0.6 and archive-tar-minitar 0.5.2 gems for Ruby allows remote attackers to write to arbitrary files via a .. […]

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Debian 11 — rabbitmq-server — multiple vulnerabilities (19 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — rabbitmq-server — multiple vulnerabilities (19 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 9 April 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2014-9494 CVE-2014-9649 CVE-2014-9650 CVE-2015-0862 CVE-2015-8786 CVE-2016-9877 CVE-2017-4965 CVE-2017-4966  +11 more Upstream summary: RabbitMQ before 3.4.0 allows remote attackers to bypass the loopback_users restriction via a crafted X-Forwareded-For header. […]

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Gentoo Linux — mail-client/neomutt — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — mail-client/neomutt — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202101-32 Related CVEs: CVE-2020-28896 CVE-2020-14093 CVE-2020-14154 CVE-2020-14954 CVE-2021-32055 Upstream summary: A weakness in TLS handshake handling was found which may allow information disclosure. Table of contents Symptom & Impact Environment & Reproduction […]

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Ubuntu 18.04 — knot-resolver — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — knot-resolver — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 9 April 2022 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6225-1 Related CVEs: CVE-2022-40188 Upstream summary: It was discovered that Knot Resolver did not correctly handle certain client options. A remote attacker could send requests to malicous domains and cause […]

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How to Install Graylog Log Management on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Install Graylog Log Management on Debian 11

Introduction How to Install Graylog Log Management on Debian 11 is a fundamental operation for any administrator maintaining a Debian 11 Bullseye server. Debian 11 Bullseye 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 11. […]

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Ubuntu 16.04 — swish-e — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — swish-e — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 9 April 2022 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8240-1 Related CVEs: CVE-2022-25236 CVE-2022-25235 Upstream summary: It was discovered that Expat, vendored in Swish-e incorrectly handled certain files. An attacker could possibly use this issue to cause a crash […]

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Oracle Linux 8 — java-1.8.0-openjdk — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — java-1.8.0-openjdk — vulnerability — patch and remediation guide (ELSA-2021-1301)

🟡 Medium   ⏱ 10–30 min  Last verified: 9 April 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-1301 Related CVEs: CVE-2021-2163 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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