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Debian 11 — jackson-core — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — jackson-core — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 12 April 2025 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2025-49128 CVE-2025-52999 Upstream summary: Jackson-core contains core low-level incremental ("streaming") parser and generator abstractions used by Jackson Data Processor. Starting in version 2.0.0 and prior to version 2.13.0, […]

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Alpine Linux 3.20 — oniguruma — vulnerability — patch and remediation guide — diagnosis and fix on Alpine Linux 3.20

Alpine Linux 3.20 — oniguruma — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.20 / fixed in 6.9.5-r2 📖 ~4 min read  •  Source: Alpine secdb entry — oniguruma 6.9.5-r2 Related CVEs: CVE-2020-26159 Upstream summary: Alpine main repository for vv3.20 ships oniguruma 6.9.5-r2 which addresses CVE-2020-26159. Table of contents Symptom & Impact Environment […]

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Debian 11 — libnet-cidr-set-perl — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — libnet-cidr-set-perl — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 12 April 2025 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2025-40911 Upstream summary: Net::CIDR::Set versions 0.10 through 0.13 for Perl does not properly handle leading zero characters in IP CIDR address strings, which could allow attackers to bypass […]

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Debian 12 — libcpanel-json-xs-perl — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — libcpanel-json-xs-perl — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 12 April 2025 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2022-48623 CVE-2025-40929 Upstream summary: The Cpanel::JSON::XS package before 4.33 for Perl performs out-of-bounds accesses in a way that allows attackers to obtain sensitive information or cause a denial […]

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Windows Server 2016 — KB5036609 — security update — patch and remediation guide — diagnosis and fix on Windows Server 2016

Windows Server 2016 — KB5036609 — security update — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Windows Server 2016 📖 ~4 min read  •  Source: Microsoft KB5036609 • MSRC update-guide entry Related CVEs: CVE-2024-21409 Affected components: Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2016 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis […]

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Alpine Linux 3.19 — dotnet7-build — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux 3.19

Alpine Linux 3.19 — dotnet7-build — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.19 / fixed in 7.0.120-r0 📖 ~4 min read  •  Source: Alpine secdb entry — dotnet7-build 7.0.120-r0 Related CVEs: CVE-2024-20672 CVE-2024-21409 CVE-2024-21392 CVE-2024-26190 CVE-2024-21386 CVE-2024-21404 CVE-2024-0056 CVE-2024-0057  +12 more Upstream summary: Alpine community repository for vv3.19 ships dotnet7-build 7.0.120-r0 which […]

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Oracle Linux 8 — container-tools:ol8 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — container-tools:ol8 — vulnerability — patch and remediation guide (ELSA-2025-3210)

🟠 High   ⏱ 15–60 min  Last verified: 12 April 2025 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2025-3210 Related CVEs: CVE-2025-22869 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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Windows Server 2016 — KB5039217 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Windows Server 2016

Windows Server 2016 — KB5039217 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Windows Server 2016 📖 ~4 min read  •  Source: Microsoft KB5039217 • MSRC update-guide entry Related CVEs: CVE-2024-30080 CVE-2024-30069 CVE-2024-30070 CVE-2024-30076 CVE-2024-30077 CVE-2024-30078 CVE-2024-30082 CVE-2024-35250  +12 more Affected components: Windows Server 2016 Windows Server 2016 (Server Core installation) Table of contents Symptom […]

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

Oracle Linux 9 — ipa — vulnerability — patch and remediation guide (ELSA-2025-9184)

🟠 High   ⏱ 15–60 min  Last verified: 12 April 2025 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2025-9184 Related CVEs: CVE-2025-4404 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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Rocky Linux 8 — perl-Archive-Tar — vulnerability — patch and remediation guide — diagnosis and fix on Rocky Linux 8

Rocky Linux 8 — perl-Archive-Tar — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Rocky Linux 8 📖 ~4 min read  •  Source: Rocky Linux RXSA RLSA-2026:8096 Related CVEs: CVE-2025-40909 Upstream summary: Perl is a high-level programming language that is commonly used for system administration utilities and web programming. Security Fix(es): * perl: Perl threads have […]

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