Common Problems

Common Problems 121529

Debian 9 Repository 404 Not Found for Enabled Mirror

🟡 Medium   ⏱ 5–30 min  Last verified: 29 November 2019 Affected versions: Debian 9 📖 ~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 12 — php70-soap — security advisory — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — php70-soap — security advisory — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 29 November 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: php7 — multiple vulnerabilities Upstream summary: The PHP Group reports: Core: Fixed bug #71637 (Multiple Heap Overflow due to integer overflows in xml/filter_url/addcslashes). SOAP: Fixed bug #71610 (Type Confusion Vulnerability […]

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FreeBSD 12 — django — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — django — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 29 November 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: django — multiple vulnerabilities Related CVEs: CVE-2012-4520 Upstream summary: The Django Project reports: Host header poisoning Several earlier Django security releases focused on the issue of poisoning the HTTP Host […]

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Ubuntu 16.04 — libntlm — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — libntlm — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 29 November 2019 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5108-2 Related CVEs: CVE-2019-17455 Upstream summary: USN-5108-1 fixed a vulnerability in Libntlm. This update provides the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM. Original advisory details: It […]

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SLES 15 — tidy — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — tidy — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 29 November 2019 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2015:1513-1 (see also SUSE bugzilla) Related CVEs: CVE-2015-5522 CVE-2015-5523 CVE-2016-6583 Upstream summary: Heap-based buffer overflow in the ParseValue function in lexer.c in tidy before 4.9.31 allows remote attackers to cause a denial […]

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Gentoo Linux — app-text/hunspell — vulnerability — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — app-text/hunspell — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202409-21 Upstream summary: Malicious input to the hunspell spell checker could result in an application crash or other unspecified behavior. Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis […]

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SLES 12 — cron — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on SLES 12

SLES 12 — cron — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 29 November 2019 Affected versions: SLES 12 📖 ~4 min read  •  Source: SUSE advisory SUSE-SA:2006:027 (see also SUSE bugzilla) Related CVEs: CVE-2006-2607 CVE-2010-0424 CVE-2019-9704 CVE-2019-9705 Upstream summary: do_command.c in Vixie cron (vixie-cron) 4.1 does not check the return code of a setuid call, which might allow […]

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Common Problems 118123

Ubuntu 18.04 filesystem mounted read-only after errors

🟡 Medium   ⏱ 5–30 min  Last verified: 28 November 2019 📖 ~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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Common Problems 117958

Ubuntu 18.04 LTS – SSH key authentication fails after hardening changes – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 28 November 2019 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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Common Problems 115562

subscription-manager shows no enabled repositories

🟡 Medium   ⏱ 5–30 min  Last verified: 28 November 2019 📖 ~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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