Package Management

Debian 12 — libcpan-checksums-perl — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — libcpan-checksums-perl — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 1 September 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2020-16155 Upstream summary: The CPAN::Checksums package 2.12 for Perl does not uniquely define signed data. Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick […]

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NetBSD 9.4 — pear-5.0.[0-9]* — vulnerability — patch and remediation guide — diagnosis and fix on NetBSD 9.4

NetBSD 9.4 — pear — vulnerability — 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 Upstream summary: pkgsrc audit-packages flagged pear for vulnerability class 'arbitrary-code-execution'. Reference: http://pear.php.net/advisory-20051104.txt Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary […]

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Windows Server 2016 — KB5025277 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Windows Server 2016

Windows Server 2016 — KB5025277 — 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 KB5025277 • MSRC update-guide entry Related CVEs: CVE-2023-21554 CVE-2023-28219 CVE-2023-28220 CVE-2023-28231 CVE-2023-28232 CVE-2023-28250 CVE-2023-21769 CVE-2023-21729  +12 more Affected components: Windows Server 2016 Windows Server 2016 (Server Core installation) Table of contents Symptom […]

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Debian 12 — jsoup — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — jsoup — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 1 September 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2015-6748 CVE-2021-37714 CVE-2022-36033 Upstream summary: Cross-site scripting (XSS) vulnerability in jsoup before 1.8.3. Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step […]

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Debian 11 — traceroute — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — traceroute — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 1 September 2023 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2023-46316 Upstream summary: In buc Traceroute 2.0.12 through 2.1.2 before 2.1.3, the wrapper scripts do not properly parse command lines. Table of contents Symptom & Impact Environment & […]

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NetBSD 9.4 — isc-dhcpd — multiple vulnerabilities (9 CVEs) — patch and remediation guide — diagnosis and fix on NetBSD 9.4

NetBSD 9.4 — isc-dhcpd — multiple vulnerabilities (9 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-2011-2748 CVE-2011-2749 CVE-2021-25217 CVE-2007-0062 CVE-2010-2156 CVE-2016-2774 CVE-2017-3144 CVE-2018-5733  +1 more Upstream summary: pkgsrc audit-packages flagged isc-dhcpd<4.2.2 for vulnerability class 'remote-denial-of-service'. Reference: https://nvd.nist.gov/vuln/detail/CVE-2011-2748 Table of contents Symptom & Impact Environment […]

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SLES 15 — libmfx1 — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — libmfx1 — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 1 September 2023 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2024:3198-1 (see also SUSE bugzilla) Related CVEs: CVE-2023-22656 CVE-2023-45221 CVE-2023-47169 CVE-2023-47282 CVE-2023-48368 Upstream summary: Out-of-bounds read in Intel(R) Media SDK and some Intel(R) oneVPL software before version 23.3.5 may allow an authenticated […]

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Alpine Linux 3.18 — hunspell — vulnerability — patch and remediation guide — diagnosis and fix on Alpine Linux 3.18

Alpine Linux 3.18 — hunspell — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.18 / fixed in 1.7.0-r1 📖 ~4 min read  •  Source: Alpine secdb entry — hunspell 1.7.0-r1 Related CVEs: CVE-2019-16707 Upstream summary: Alpine main repository for vv3.18 ships hunspell 1.7.0-r1 which addresses CVE-2019-16707. Table of contents Symptom & Impact Environment […]

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

Oracle Linux 9 — dbus — vulnerability — patch and remediation guide (ELSA-2023-0335)

🟡 Medium   ⏱ 10–30 min  Last verified: 1 September 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-0335 Related CVEs: CVE-2022-42011 CVE-2022-42012 CVE-2022-42010 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification […]

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How to Apply CIS Benchmark Hardening to Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Apply CIS Benchmark Hardening to Debian 12

Introduction This guide explains how to Apply CIS Benchmark Hardening to Debian 12 on Debian 12 Bookworm. Debian Bookworm uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 12 install with the […]

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