Operations

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

Debian 12 — lprng — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 15 August 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2003-0136 Upstream summary: psbanner in the LPRng package allows local users to overwrite arbitrary files via a symbolic link attack on the /tmp/before file. Table of contents Symptom […]

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Ubuntu 18.04 — opencv — multiple vulnerabilities (9 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — opencv — multiple vulnerabilities (9 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 15 August 2023 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7247-1 Related CVEs: CVE-2019-14493 CVE-2019-16249 CVE-2019-19624 CVE-2023-2617 CVE-2023-2618 CVE-2019-15939 CVE-2019-14491 CVE-2017-18009  +1 more Upstream summary: It was discovered that OpenCV did not properly manage certain XML data, leading to a […]

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Windows Server 2019 — KB5029253 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Windows Server 2019

Windows Server 2019 — KB5029253 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Windows Server 2019 📖 ~4 min read  •  Source: Microsoft KB5029253 • MSRC update-guide entry Related CVEs: CVE-2023-36910 CVE-2023-36911 CVE-2023-35385 CVE-2023-35359 CVE-2023-36882 CVE-2023-36889 CVE-2023-36900 CVE-2023-36903  +12 more Affected components: Windows Server 2019 (Server Core installation) Table of contents Symptom & Impact Environment […]

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NetBSD 9.4 — pidgin — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on NetBSD 9.4

NetBSD 9.4 — pidgin — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: NetBSD 9.4 📖 ~4 min read  •  Source: pkgsrc audit-packages entry Related CVEs: CVE-2009-1373 CVE-2009-1374 CVE-2009-1375 CVE-2009-1376 CVE-2016-2371 CVE-2016-2368 CVE-2016-2376 CVE-2016-1000030  +12 more Upstream summary: pkgsrc audit-packages flagged pidgin<2.4.3 for vulnerability class 'arbitrary-code-execution'. Reference: http://archives.neohapsis.com/archives/bugtraq/2008-06/0225.html Table of contents Symptom & Impact Environment […]

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SLES 12 — cpp7 — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on SLES 12

SLES 12 — cpp7 — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 15 August 2023 Affected versions: SLES 12 📖 ~4 min read  •  Source: SUSE advisory SUSE-CU-2023:3021-1 (see also SUSE bugzilla) Related CVEs: CVE-2023-4039 CVE-2019-14250 CVE-2019-15847 CVE-2020-13844 Upstream summary: **DISPUTED**A failure in the -fstack-protector feature in GCC-based toolchains that target AArch64 allows an attacker to exploit an existing […]

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Oracle Linux 8 — kvm_utils3 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — kvm_utils3 — vulnerability — patch and remediation guide (ELSA-2023-12855)

🟠 High   ⏱ 15–60 min  Last verified: 15 August 2023 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-12855 Related CVEs: CVE-2023-3301 CVE-2023-3255 CVE-2023-2700 CVE-2023-3354 CVE-2023-3750 CVE-2023-0330 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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Alpine Linux 3.18 — openjdk16 — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux 3.18

Alpine Linux 3.18 — openjdk16 — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.18 / fixed in 16.0.2_p7-r0 📖 ~4 min read  •  Source: Alpine secdb entry — openjdk16 16.0.2_p7-r0 Related CVEs: CVE-2021-2388 CVE-2021-2369 CVE-2021-2341 Upstream summary: Alpine community repository for vv3.18 ships openjdk16 16.0.2_p7-r0 which addresses CVE-2021-2388. Table of contents Symptom & […]

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How to Set Up a Local Kubernetes Dev Cluster with Kind on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Set Up a Local Kubernetes Dev Cluster with Kind on Debian 12

Introduction Debian 12 Bookworm is built around the ethos of stability and free software. Setting up set up a local kubernetes dev cluster with kind on debian 12 on Bookworm leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Bookworm freeze. […]

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Alpine Linux 3.18 — gst-plugins-base — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux 3.18

Alpine Linux 3.18 — gst-plugins-base — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.18 / fixed in 1.22.12-r0 📖 ~4 min read  •  Source: Alpine secdb entry — gst-plugins-base 1.22.12-r0 Related CVEs: ZDI-CAN-23896 CVE-2021-3522 CVE-2019-9928 Upstream summary: Alpine main repository for vv3.18 ships gst-plugins-base 1.22.12-r0 which addresses ZDI-CAN-23896. Table of contents Symptom & […]

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Common Problems 114447

DNS Resolution Fails After NetworkManager Changes

🟡 Medium   ⏱ 5–30 min  Last verified: 14 August 2023 📖 ~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 & Cross-Refs References & Further […]

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