Security Hardening

SLES 15 — krb5 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — krb5 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 11 March 2025 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-SA:2010:006 (see also SUSE bugzilla) Related CVEs: CVE-2009-4212 CVE-2024-37370 CVE-2024-26458 CVE-2024-26462 CVE-2023-36054 CVE-2002-2443 CVE-2009-0846 CVE-2009-0847  +12 more Upstream summary: Multiple integer underflows in the (1) AES and (2) RC4 decryption functionality in […]

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Windows Server 2016 — KB5044342 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Windows Server 2016

Windows Server 2016 — KB5044342 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Windows Server 2016 📖 ~4 min read  •  Source: Microsoft KB5044342 • MSRC update-guide entry Related CVEs: CVE-2024-38261 CVE-2024-43506 CVE-2024-43515 CVE-2024-43518 CVE-2024-43519 CVE-2024-43532 CVE-2024-43534 CVE-2024-43535  +12 more Affected components: Windows Server 2016 (Server Core installation) Windows Server 2016 Table of contents Symptom […]

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FreeBSD 14 — libXcursor — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 14

FreeBSD 14 — libXcursor — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 11 March 2025 Affected versions: FreeBSD 14 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: libXcursor — integer overflow that can lead to heap buffer overflow Related CVEs: CVE-2013-1981 CVE-2013-1982 CVE-2013-1983 CVE-2013-1984 CVE-2013-1985 CVE-2013-1986 CVE-2013-1987 CVE-2013-1988  +12 more Upstream summary: The freedesktop.org project reports: It […]

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Amazon Linux 2 — kernel-livepatch-5.10.240-238.959 — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — kernel-livepatch-5.10.240-238.959 — multiple vulnerabilities (7 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2LIVEPATCH-2025-280 Related CVEs: CVE-2022-50500 CVE-2023-53530 CVE-2025-38527 CVE-2025-39677 CVE-2025-39691 CVE-2025-39730 CVE-2025-39923 Upstream summary: In the Linux kernel, the following vulnerability has been resolved: netdevsim: fix memory leak in nsim_drv_probe() when nsim_dev_resources_register() […]

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Common Problems 111214

Windows Server 2025 — IIS SSL handshake failing due to deprecated TLS 1.0/1.1 cipher removal — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 11 March 2025 Affected versions: Windows Server 2025 📖 ~2 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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Gentoo Linux — net-misc/openssh — multiple vulnerabilities (11 CVEs) — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — net-misc/openssh — multiple vulnerabilities (11 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202407-09 Related CVEs: CVE-2024-6387 CVE-2023-48795 CVE-2023-51385 CVE-2023-25136 CVE-2023-28531 CVE-2023-38408 CVE-2020-15778 CVE-2025-26465  +3 more Upstream summary: A vulnerability has been discovered in OpenSSH. Please review the CVE identifier referenced below for details. Table […]

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NetBSD 10.0 — c-icap — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on NetBSD 10.0

NetBSD 10.0 — c-icap — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: NetBSD 10.0 📖 ~4 min read  •  Source: pkgsrc audit-packages entry Related CVEs: CVE-2013-7401 CVE-2013-7402 Upstream summary: pkgsrc audit-packages flagged c-icap<2.6 for vulnerability class 'denial-of-service'. Reference: http://www.gentoo.org/security/en/glsa/glsa-201409-07.xml Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step […]

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FreeBSD 14 — ghostscript-gpl — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 14

FreeBSD 14 — ghostscript-gpl — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 10 March 2025 Affected versions: FreeBSD 14 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: ghostscript — zseticcspace() function buffer overflow vulnerability Related CVEs: CVE-2008-0411 Upstream summary: Chris Evans from the Google Security Team reports: Severity: parsing of evil PostScript file will result in arbitrary […]

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NetBSD 10.0 — wolfssl — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on NetBSD 10.0

NetBSD 10.0 — wolfssl — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: NetBSD 10.0 📖 ~4 min read  •  Source: pkgsrc audit-packages entry Related CVEs: CVE-2020-11713 CVE-2020-11735 CVE-2020-24585 CVE-2020-36177 CVE-2021-3336 CVE-2021-24116 CVE-2021-37155 CVE-2021-38597  +12 more Upstream summary: pkgsrc audit-packages flagged wolfssl<4.4.0 for vulnerability class 'side-channel'. Reference: https://nvd.nist.gov/vuln/detail/CVE-2020-11713 Table of contents Symptom & Impact Environment […]

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NetBSD 10.0 — ruby27 — vulnerability — patch and remediation guide — diagnosis and fix on NetBSD 10.0

NetBSD 10.0 — ruby27 — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: NetBSD 10.0 📖 ~4 min read  •  Source: pkgsrc audit-packages entry Upstream summary: pkgsrc audit-packages flagged ruby27-* for vulnerability class 'eol'. Reference: https://www.ruby-lang.org/en/downloads/branches/ Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary […]

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