Linux

Amazon Linux 2 — harfbuzz — vulnerability — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — harfbuzz — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2-2024-2587 Related CVEs: CVE-2023-25193 Upstream summary: hb-ot-layout-gsubgpos.hh in HarfBuzz through 6.0.0 allows attackers to trigger O(n^2) growth via consecutive marks during the process of looking back for base glyphs when […]

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Debian 12 — unicon — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — unicon — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 27 October 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2007-2835 Upstream summary: Multiple stack-based buffer overflows in (1) CCE_pinyin.c and (2) xl_pinyin.c in ImmModules/cce/ in unicon-imc2 3.0.4, as used by zhcon and other applications, allow local users […]

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Ubuntu 20.04 — tcpreplay — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — tcpreplay — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 27 October 2023 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7231-1 Related CVEs: CVE-2023-27783 CVE-2023-27784 CVE-2023-27785 CVE-2023-27786 CVE-2023-27787 CVE-2023-27788 CVE-2023-27789 CVE-2023-4256  +12 more Upstream summary: It was discovered that Tcpreplay incorrectly handled memory when using the tcprewrite utility. A remote […]

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Oracle Linux 8 — tomcat — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — tomcat — vulnerability — patch and remediation guide (ELSA-2024-0125)

🟡 Medium   ⏱ 10–30 min  Last verified: 27 October 2023 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2024-0125 Related CVEs: CVE-2023-45648 CVE-2023-41080 CVE-2023-42795 CVE-2023-42794 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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openSUSE Leap 15.5 — supportutils — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Leap 15.5

openSUSE Leap 15.5 — supportutils — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Leap 15.5 📖 ~4 min read  •  Source: SUSE advisory SUSE-CU-2023:3174-1 (see also SUSE bugzilla) Related CVEs: CVE-2022-45154 Upstream summary: A Cleartext Storage of Sensitive Information vulnerability in suppportutils of SUSE Linux Enterprise Server 12, SUSE Linux Enterprise Server 15, SUSE […]

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

Oracle Linux 9 — less — vulnerability — patch and remediation guide (ELSA-2024-1692)

🟡 Medium   ⏱ 10–30 min  Last verified: 27 October 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2024-1692 Related CVEs: CVE-2022-48624 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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Alpine Linux 3.18 — libass — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux 3.18

Alpine Linux 3.18 — libass — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.18 / fixed in 0.13.4-r0 📖 ~4 min read  •  Source: Alpine secdb entry — libass 0.13.4-r0 Related CVEs: CVE-2016-7969 CVE-2016-7970 CVE-2016-7971 CVE-2016-7972 Upstream summary: Alpine community repository for vv3.18 ships libass 0.13.4-r0 which addresses CVE-2016-7969. Table of contents Symptom […]

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How to Install Fluent Bit Log Forwarder on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Install Fluent Bit Log Forwarder on Debian 12

Introduction Deploying install fluent bit log forwarder 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 Before […]

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Common Problems 120002

Debian 12 – boot is delayed by systemd-networkd-wait-online timeout

🟡 Medium   ⏱ 5–30 min  Last verified: 27 October 2023 Affected versions: Debian 12 📖 ~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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Alpine Linux 3.18 — gnupg — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux 3.18

Alpine Linux 3.18 — gnupg — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.18 / fixed in 2.2.8-r0 📖 ~4 min read  •  Source: Alpine secdb entry — gnupg 2.2.8-r0 Related CVEs: CVE-2018-12020 CVE-2022-34903 CVE-2020-25125 CVE-2019-14855 Upstream summary: Alpine main repository for vv3.18 ships gnupg 2.2.8-r0 which addresses CVE-2018-12020. Table of contents Symptom […]

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