Common Problems

Ubuntu 18.04 — libapache2-mod-auth-mellon — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — libapache2-mod-auth-mellon — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 15 August 2021 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5069-1 Related CVEs: CVE-2021-3639 CVE-2019-13038 CVE-2019-3877 CVE-2019-3878 Upstream summary: It was discovered that mod-auth-mellon incorrectly filtered certain URLs. A remote attacker could possibly use this issue to perform an open […]

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Oracle Linux 8 — lasso security and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — lasso security and — enhancement update — new behaviour and fixes (ELSA-2021-4325)

🟡 Medium   ⏱ 10–30 min  Last verified: 14 August 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-4325 Related CVEs: CVE-2021-28091 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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Common Problems 118950

Ubuntu 14.04 LTS Network Interface Fails After ifupdown Edit

🟠 High   ⏱ 5–30 min  Last verified: 14 August 2021 Affected versions: 14.04 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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FreeBSD 13 — py27-imaging — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — py27-imaging — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 14 August 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: py-imaging, py-pillow — Buffer overflow in PCD decoder Related CVEs: CVE-2016-0775 Upstream summary: The Pillow maintainers report: In all versions of Pillow, dating back at least to the last PIL […]

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Common Problems 118559

Ubuntu 16.04 LTS Expired GPG Keys Break apt Repositories

🟡 Medium   ⏱ 5–30 min  Last verified: 14 August 2021 Affected versions: 16.04 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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FreeBSD 13 — qt4-imageformats — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — qt4-imageformats — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 14 August 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: qt4-imageformats, qt4-gui, qt5-gui — Multiple Vulnerabilities in Qt Image Format Handling Related CVEs: CVE-2014-0190 CVE-2015-1858 CVE-2015-1859 CVE-2015-1860 Upstream summary: Richard J. Moore reports: Due to two recent vulnerabilities identified in […]

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FreeBSD 13 — php56-fileinfo — security advisory — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — php56-fileinfo — security advisory — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 14 August 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: php — multiple vulnerabilities Upstream summary: The PHP Group reports: Fileinfo: Fixed bug #71527 (Buffer over-write in finfo_open with malformed magic file). mbstring: Fixed bug #71906 (AddressSanitizer: negative-size-param (-1) in […]

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Alpine Linux edge — libtirpc — vulnerability — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — libtirpc — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 1.3.2-r2 📖 ~4 min read  •  Source: Alpine secdb entry — libtirpc 1.3.2-r2 Related CVEs: CVE-2021-46828 Upstream summary: Alpine main repository for vedge ships libtirpc 1.3.2-r2 which addresses CVE-2021-46828. Table of contents Symptom & Impact Environment […]

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