Linux

Debian 12 — nova — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — nova — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2011-3147 CVE-2011-4076 CVE-2011-4596 CVE-2012-0030 CVE-2012-1585 CVE-2012-2101 CVE-2012-2654 CVE-2012-3360  +12 more Upstream summary: Versions of nova before 2012.1 could expose hypervisor host files to a guest operating system when […]

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Common Problems 116615

Ubuntu 24.04 LTS – cron jobs not running at scheduled times – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 20 May 2026 Affected versions: Ubuntu 24.04 LTS 📖 ~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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Debian 13 — netatalk — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — netatalk — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2004-0974 CVE-2008-5718 CVE-2018-1160 CVE-2021-31439 CVE-2022-0194 CVE-2022-22995 CVE-2022-23121 CVE-2022-23122  +12 more Upstream summary: The netatalk package in Trustix Secure Linux 1.5 through 2.1, and possibly other operating systems, allows […]

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Debian 10 — openjdk-11 — multiple vulnerabilities (12 CVEs) — patch and remediation guide — diagnosis and fix on Debian 10

Debian 10 — openjdk-11 — multiple vulnerabilities (12 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Debian 10 (buster) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-2745 CVE-2019-2894 CVE-2020-14556 CVE-2020-14779 CVE-2020-2583 CVE-2020-2754 CVE-2021-2163 CVE-2021-2341  +4 more Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – […]

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Debian 9 — qemu — multiple vulnerabilities (9 CVEs) — patch and remediation guide — diagnosis and fix on Debian 9

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

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Debian 9 (stretch) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2017-9310 CVE-2017-9524 CVE-2017-9375 CVE-2017-5715 CVE-2018-10839 CVE-2018-11806 CVE-2018-20815 CVE-2019-13164  +1 more Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – […]

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Common Problems 117607

Ubuntu 20.04 LTS – failed fstab mount entry blocks startup target – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 20 May 2026 Affected versions: Ubuntu 20.04 LTS 📖 ~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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Common Problems 118107

Ubuntu 18.04 LTS – failed fstab mount entry blocks startup target – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 20 May 2026 Affected versions: Ubuntu 18.04 LTS 📖 ~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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Debian 12 — ffmpeg — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — ffmpeg — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2005-4048 CVE-2006-4800 CVE-2008-3162 CVE-2008-3230 CVE-2008-4610 CVE-2008-4866 CVE-2008-4867 CVE-2009-0385  +12 more Upstream summary: Heap-based buffer overflow in the avcodec_default_get_buffer function (utils.c) in FFmpeg libavcodec 0.4.9-pre1 and earlier, as used […]

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Debian 13 — binutils — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — binutils — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2005-4807 CVE-2005-4808 CVE-2006-2362 CVE-2008-2310 CVE-2012-3509 CVE-2014-8484 CVE-2014-8485 CVE-2014-8501  +12 more Upstream summary: Stack-based buffer overflow in the as_bad function in messages.c in the GNU as (gas) assembler in […]

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Common Problems 116605

Ubuntu 24.04 LTS – fail2ban service running but no bans applied – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 20 May 2026 Affected versions: Ubuntu 24.04 LTS 📖 ~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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