Security Hardening

NetBSD 9.4 — viewvc — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on NetBSD 9.4

NetBSD 9.4 — viewvc — multiple vulnerabilities (8 CVEs) — patch and remediation guide

  • May 24, 2026
  • BSD
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🟠 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-2023-22464 CVE-2012-4533 CVE-2017-5938 CVE-2020-5283 CVE-2023-22456 CVE-2025-54141 CVE-2009-5024 CVE-2007-5743 Upstream summary: pkgsrc audit-packages flagged viewvc<1.1.30 for vulnerability class 'arbitrary-code-execution'. Reference: https://nvd.nist.gov/vuln/detail/CVE-2023-22464 Table of contents Symptom & Impact Environment & Reproduction […]

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Alpine Linux 3.19 — zsh — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux 3.19

Alpine Linux 3.19 — zsh — multiple vulnerabilities (4 CVEs) — patch and remediation guide

  • May 24, 2026
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.19 / fixed in 5.8.1-r0 📖 ~4 min read  •  Source: Alpine secdb entry — zsh 5.8.1-r0 Related CVEs: CVE-2021-45444 CVE-2019-20044 CVE-2018-1083 CVE-2018-1071 Upstream summary: Alpine main repository for vv3.19 ships zsh 5.8.1-r0 which addresses CVE-2021-45444. Table of contents Symptom […]

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

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

  • May 24, 2026
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory BLOG-COPY-FAIL (see also SUSE bugzilla) Related CVEs: CVE-2026-31431 CVE-2009-4273 CVE-2010-0412 CVE-2009-2911 CVE-2010-0411 Upstream summary: In the Linux kernel, the following vulnerability has been resolved: crypto: algif_aead – Revert to operating out-of-place This […]

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Windows Server 2019 — KB5031427 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Windows Server 2019

Windows Server 2019 — KB5031427 — 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 KB5031427 • MSRC update-guide entry Related CVEs: CVE-2023-35349 CVE-2023-41765 CVE-2023-41770 CVE-2023-41768 CVE-2023-41767 CVE-2023-41771 CVE-2023-41769 CVE-2023-41773  +12 more Affected components: Windows Server 2019 (Server Core installation) Table of contents Symptom & Impact Environment […]

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

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

  • May 24, 2026
  • 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 ALAS2023-2023-018 Related CVEs: CVE-2021-3618 Upstream summary: ALPACA is an application layer protocol content confusion attack, exploiting TLS servers implementing different protocols but using compatible certificates, such as multi-domain or wildcard […]

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Windows Server 2019 — KB5031441 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Windows Server 2019

Windows Server 2019 — KB5031441 — 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 KB5031441 • MSRC update-guide entry Related CVEs: CVE-2023-35349 CVE-2023-41765 CVE-2023-41770 CVE-2023-41768 CVE-2023-41767 CVE-2023-41771 CVE-2023-41769 CVE-2023-41773  +12 more Affected components: Windows Server 2019 (Server Core installation) Table of contents Symptom & Impact Environment […]

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

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

  • May 24, 2026
  • BSD
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🟠 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-2007-2438 CVE-2007-2953 CVE-2008-2712 CVE-2008-4677 CVE-2019-20079 CVE-2019-20807 CVE-2021-3796 CVE-2021-3974  +12 more Upstream summary: pkgsrc audit-packages flagged vim<6.3.045 for vulnerability class 'local-code-execution'. Reference: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1138 Table of contents Symptom & Impact Environment […]

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Alpine Linux 3.19 — zstd — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux 3.19

Alpine Linux 3.19 — zstd — multiple vulnerabilities (3 CVEs) — patch and remediation guide

  • May 24, 2026
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.19 / fixed in 1.4.9-r0 📖 ~4 min read  •  Source: Alpine secdb entry — zstd 1.4.9-r0 Related CVEs: CVE-2021-24032 CVE-2021-24031 CVE-2019-11922 Upstream summary: Alpine main repository for vv3.19 ships zstd 1.4.9-r0 which addresses CVE-2021-24032. Table of contents Symptom & […]

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