Common Problems

AlmaLinux 8 — zlib — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — zlib — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2022:1642 Related CVEs: CVE-2018-25032 CVE-2022-37434 Upstream summary: The zlib packages provide a general-purpose lossless data compression library that is used by many different programs. Security Fix(es): * zlib: A flaw found in […]

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

Debian 11 — mediawiki — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 15 September 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2004-1405 CVE-2004-2152 CVE-2004-2185 CVE-2004-2186 CVE-2004-2187 CVE-2005-0534 CVE-2005-0535 CVE-2005-0536  +12 more Upstream summary: MediaWiki 1.3.8 and earlier, when used with Apache mod_mime, does not properly handle files with two […]

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Common Problems 120555

Debian 11 Boot Stalls on Emergency Mode

🔴 Critical   ⏱ 5–30 min  Last verified: 14 September 2022 Affected versions: Debian 11 📖 ~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 13 — GraphicsMagick — multiple vulnerabilities (11 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — GraphicsMagick — multiple vulnerabilities (11 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 14 September 2022 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: GraphicsMagick — multiple vulnerabilities Related CVEs: CVE-2012-3438 CVE-2016-2317 CVE-2016-7800 CVE-2016-7996 CVE-2016-7997 CVE-2016-9830 CVE-2017-10794 CVE-2017-10799  +3 more Upstream summary: GraphicsMagick News: Read "Security Fixes:" section for details. Table of contents Symptom […]

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Common Problems 115465

RHEL 7 NFS Mount Fails During Boot

🟠 High   ⏱ 5–30 min  Last verified: 14 September 2022 Affected versions: RHEL 7 📖 ~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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AlmaLinux 8 — usermode — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — usermode — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALBA-2021:4516 Upstream summary: For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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

Debian 11 — mason — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 14 September 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2005-3118 Upstream summary: Mason before 1.0.0 does not install the init script after the user uses Mason to configure a firewall, which causes the system to run without […]

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Common Problems 114556

Samba Share Access Denied on RHEL 9

🟡 Medium   ⏱ 5–30 min  Last verified: 14 September 2022 📖 ~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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Debian 11 — jackson-dataformat-xml — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — jackson-dataformat-xml — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 14 September 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2016-3720 CVE-2016-7051 Upstream summary: XML external entity (XXE) vulnerability in XmlMapper in the Data format extension for Jackson (aka jackson-dataformat-xml) allows attackers to have unspecified impact via unknown […]

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Debian 11 — pax — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — pax — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 14 September 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2015-1193 CVE-2015-1194 Upstream summary: Multiple directory traversal vulnerabilities in pax 1:20140703 allow remote attackers to write to arbitrary files via a (1) full pathname or (2) .. (dot […]

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