Linux

How to Set Up Alertmanager Email Notifications on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Set Up Alertmanager Email Notifications on Debian 12

  • December 3, 2023
  • Linux
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Introduction Deploying set up alertmanager email notifications on debian 12 on a Debian 12 Bookworm machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites You […]

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Alpine Linux 3.18 — salt — multiple vulnerabilities (11 CVEs) — patch and remediation guide

Alpine Linux 3.18 — salt — multiple vulnerabilities (11 CVEs) — patch and remediation guide

  • December 3, 2023
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.18 / fixed in 3004.1-r0 📖 ~4 min read  •  Source: Alpine secdb entry — salt 3004.1-r0 Related CVEs: CVE-2022-22934 CVE-2022-22935 CVE-2022-22936 CVE-2022-22941 CVE-2021-31607 CVE-2020-16846 CVE-2020-17490 CVE-2020-25592  +3 more Upstream summary: Alpine community repository for vv3.18 ships salt 3004.1-r0 which […]

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Ubuntu 18.04 — pypdf2 — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — pypdf2 — multiple vulnerabilities (2 CVEs) — patch and remediation guide

  • December 3, 2023
  • Linux
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🟢 Low   ⏱ 5–15 min  Last verified: 3 December 2023 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6280-1 Related CVEs: CVE-2023-36810 CVE-2022-24859 Upstream summary: It was discovered that PyPDF2 incorrectly handled PDF files with certain markers. If a user or automated system were tricked into processing a […]

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Oracle Linux 9 — expat — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — expat — vulnerability — patch and remediation guide (ELSA-2022-6838)

  • December 3, 2023
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 3 December 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-6838 Related CVEs: CVE-2022-40674 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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How to Install Lighttpd on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Install Lighttpd on Debian 12

  • December 3, 2023
  • Linux
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Introduction How to Install Lighttpd on Debian 12 is a fundamental operation for any administrator maintaining a Debian 12 Bookworm server. Debian 12 Bookworm 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 12. This tutorial […]

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Amazon Linux 2023 — libinput — vulnerability — patch and remediation guide — diagnosis and fix on Amazon Linux 2023

Amazon Linux 2023 — libinput — vulnerability — patch and remediation guide

  • December 2, 2023
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2023 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2023-2023-041 Related CVEs: CVE-2022-1215 Upstream summary: A format string vulnerability was found in libinput (CVE-2022-1215) Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step […]

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openSUSE Tumbleweed — phpPgAdmin — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — phpPgAdmin — multiple vulnerabilities (5 CVEs) — patch and remediation guide

  • December 2, 2023
  • Linux
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🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE security advisory (see also SUSE bugzilla) Related CVEs: CVE-2023-40619 CVE-2019-10784 CVE-2008-5587 CVE-2011-3598 CVE-2012-1600 Upstream summary: phpPgAdmin 7.14.4 and earlier is vulnerable to deserialization of untrusted data which may lead to remote code execution […]

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Debian 12 — software-properties — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — software-properties — multiple vulnerabilities (4 CVEs) — patch and remediation guide

  • December 2, 2023
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 2 December 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2011-4407 CVE-2012-0955 CVE-2013-1061 CVE-2020-15709 Upstream summary: ppa.py in Software Properties before 0.81.13.3 does not validate the server certificate when downloading PPA GPG key fingerprints, which allows man-in-the-middle (MITM) […]

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Alpine Linux 3.18 — lldpd — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux 3.18

Alpine Linux 3.18 — lldpd — multiple vulnerabilities (2 CVEs) — patch and remediation guide

  • December 2, 2023
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.18 / fixed in 1.0.8-r0 📖 ~4 min read  •  Source: Alpine secdb entry — lldpd 1.0.8-r0 Related CVEs: CVE-2020-27827 CVE-2021-43612 Upstream summary: Alpine community repository for vv3.18 ships lldpd 1.0.8-r0 which addresses CVE-2020-27827. Table of contents Symptom & Impact […]

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