Common Problems

Debian 11 — jackson-databind — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — jackson-databind — multiple vulnerabilities (20 CVEs) — patch and remediation guide

  • May 21, 2026
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2017-15095 CVE-2017-17485 CVE-2017-7525 CVE-2018-11307 CVE-2018-12022 CVE-2018-12023 CVE-2018-14718 CVE-2018-14719  +12 more Upstream summary: A deserialization flaw was discovered in the jackson-databind in versions before 2.8.10 and 2.9.1, which could […]

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Debian 10 — freeimage — vulnerability — patch and remediation guide — diagnosis and fix on Debian 10

Debian 10 — freeimage — vulnerability — patch and remediation guide

  • May 21, 2026
  • Linux
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🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 10 (buster) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-12211 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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pr cp 111064 r2

Windows Server 2025 — Certificate Services entering crash loop after certificate store corruption — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 19 May 2026 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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Debian 9 — opensmtpd — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 9

Debian 9 — opensmtpd — multiple vulnerabilities (2 CVEs) — patch and remediation guide

  • May 21, 2026
  • Linux
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🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 9 (stretch) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2020-7247 CVE-2020-8794 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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pr cp 113971 r2

RHEL 10 – Podman image pull TLS handshake timeout on registry access – Fix & Prevention

  • May 21, 2026
  • Linux
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🟡 Medium   ⏱ 5–30 min  Last verified: 19 May 2026 Affected versions: RHEL 10 📖 ~1 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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FreeBSD 15 — linux-f8-flashplugin — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 15

FreeBSD 15 — linux-f8-flashplugin — multiple vulnerabilities (20 CVEs) — patch and remediation guide

  • May 21, 2026
  • BSD
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: FreeBSD 15 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: linux-flashplugin — remote code execution vulnerability Related CVEs: CVE-2008-4546 CVE-2009-3793 CVE-2009-3794 CVE-2009-3796 CVE-2009-3797 CVE-2009-3798 CVE-2009-3799 CVE-2009-3800  +12 more Upstream summary: Adobe Product Security Incident Response Team reports: A critical vulnerability […]

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pr cp 114470 r2

NetworkManager Connected but No Internet Access

🟡 Medium   ⏱ 5–30 min  Last verified: 19 May 2026 📖 ~1 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 & Cross-Refs References & Further […]

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

FreeBSD 14 — linux-flashplayer — multiple vulnerabilities (20 CVEs) — patch and remediation guide

  • May 21, 2026
  • BSD
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: FreeBSD 14 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: Flash Player — arbitrary code execution Related CVEs: CVE-2017-11213 CVE-2017-11215 CVE-2017-11225 CVE-2017-11281 CVE-2017-11282 CVE-2017-11292 CVE-2017-2925 CVE-2017-2926  +12 more Upstream summary: Adobe reports: This update resolves a NULL pointer dereference vulnerability […]

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