Common Problems

Windows Server 2016 — KB5025239 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Windows Server 2016

Windows Server 2016 — KB5025239 — 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 KB5025239 • MSRC update-guide entry Related CVEs: CVE-2023-21554 CVE-2023-28219 CVE-2023-28220 CVE-2023-28232 CVE-2023-28250 CVE-2023-21769 CVE-2023-21729 CVE-2023-21727  +12 more Affected components: Windows Server 2016 Table of contents Symptom & Impact Environment & Reproduction Root […]

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Oracle Linux 8 — Unbreakable Enterprise kernel — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — Unbreakable Enterprise kernel — vulnerability — patch and remediation guide (ELSA-2023-12394)

  • November 3, 2023
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 3 November 2023 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-12394 Related CVEs: CVE-2023-30456 CVE-2023-32233 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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Oracle Linux 9 — nss — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — nss — vulnerability — patch and remediation guide (ELSA-2024-0790)

  • November 3, 2023
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 3 November 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2024-0790 Related CVEs: CVE-2023-6135 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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openSUSE Leap 15.5 — amanda — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Leap 15.5

openSUSE Leap 15.5 — amanda — vulnerability — patch and remediation guide

  • November 3, 2023
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Leap 15.5 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2023:0205-1 (see also SUSE bugzilla) Related CVEs: CVE-2023-30577 Upstream summary: AMANDA (Advanced Maryland Automatic Network Disk Archiver) before tag-community-3.5.4 mishandles argument checking for runtar.c, a different vulnerability than CVE-2022-37705. Table of […]

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

Oracle Linux 9 — GraalVM — vulnerability — patch and remediation guide (ELSA-2023-12075)

  • November 3, 2023
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 3 November 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-12075 Related CVEs: CVE-2022-43548 CVE-2023-21830 CVE-2023-21843 CVE-2023-21835 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches […]

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Alpine Linux 3.18 — xorg-server — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux 3.18

Alpine Linux 3.18 — xorg-server — multiple vulnerabilities (20 CVEs) — patch and remediation guide

  • November 3, 2023
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.18 / fixed in 21.1.9-r0 📖 ~4 min read  •  Source: Alpine secdb entry — xorg-server 21.1.9-r0 Related CVEs: CVE-2023-5367 CVE-2023-5380 CVE-2023-5574 CVE-2023-0494 CVE-2022-4283 CVE-2022-46340 CVE-2022-46341 CVE-2022-46342  +12 more Upstream summary: Alpine community repository for vv3.18 ships xorg-server 21.1.9-r0 which […]

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NetBSD 9.4 — tmux — vulnerability — patch and remediation guide — diagnosis and fix on NetBSD 9.4

NetBSD 9.4 — tmux — vulnerability — patch and remediation guide

  • November 2, 2023
  • BSD
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: NetBSD 9.4 📖 ~4 min read  •  Source: pkgsrc audit-packages entry Related CVEs: CVE-2020-27347 Upstream summary: pkgsrc audit-packages flagged tmux<3.1c for vulnerability class 'buffer-overflow'. Reference: https://nvd.nist.gov/vuln/detail/CVE-2020-27347 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis […]

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Debian 12 — ldap-git-backup — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — ldap-git-backup — vulnerability — patch and remediation guide

  • November 2, 2023
  • Linux
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🟢 Low   ⏱ 5–15 min  Last verified: 2 November 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2013-1425 Upstream summary: ldap-git-backup before 1.0.4 exposes password hashes due to incorrect directory permissions. Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage […]

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Debian 12 — libevent — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — libevent — multiple vulnerabilities (5 CVEs) — patch and remediation guide

  • November 2, 2023
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 2 November 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2014-6272 CVE-2015-6525 CVE-2016-10195 CVE-2016-10196 CVE-2016-10197 Upstream summary: Multiple integer overflows in the evbuffer API in Libevent 1.4.x before 1.4.15, 2.0.x before 2.0.22, and 2.1.x before 2.1.5-beta allow context-dependent […]

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