Common Problems

FreeBSD 12 — apache13-ssl — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — apache13-ssl — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 26 May 2020 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: apache — heap overflow in mod_proxy Related CVEs: CVE-2004-0492 Upstream summary: A buffer overflow exists in mod_proxy which may allow an attacker to launch local DoS attacks and possibly execute […]

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Gentoo Linux — net-proxy/haproxy — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — net-proxy/haproxy — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202004-01 Related CVEs: CVE-2019-19330 CVE-2020-11100 Upstream summary: It was discovered that HAProxy incorrectly handled certain HTTP/2 headers. Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step […]

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Ubuntu 16.04 — zoneminder — multiple vulnerabilities (13 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — zoneminder — multiple vulnerabilities (13 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 26 May 2020 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5889-1 Related CVEs: CVE-2019-6777 CVE-2019-6990 CVE-2019-6991 CVE-2019-6992 CVE-2019-7325 CVE-2019-7326 CVE-2019-7327 CVE-2019-7328  +5 more Upstream summary: It was discovered that ZoneMinder was not properly sanitizing URL parameters for certain views. An […]

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

SLES 15 — file-roller — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 26 May 2020 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2025:0032-1 (see also SUSE bugzilla) Related CVEs: CVE-2020-36314 CVE-2019-16680 CVE-2020-11736 Upstream summary: fr-archive-libarchive.c in GNOME file-roller through 3.38.0, as used by GNOME Shell and other software, allows Directory Traversal during extraction because […]

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Oracle Linux 8 — SDL — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — SDL — vulnerability — patch and remediation guide (ELSA-2020-4627)

🟡 Medium   ⏱ 10–30 min  Last verified: 26 May 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-4627 Related CVEs: CVE-2019-7636 CVE-2019-7576 CVE-2019-7572 CVE-2019-7638 CVE-2019-7635 CVE-2019-7637 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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Oracle Linux 8 — dbus — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — dbus — vulnerability — patch and remediation guide (ELSA-2020-3014)

🟠 High   ⏱ 15–60 min  Last verified: 26 May 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-3014 Related CVEs: CVE-2020-12049 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 121007

Debian 10 interrupted dpkg Requires Manual Configuration

🟠 High   ⏱ 5–30 min  Last verified: 25 May 2020 Affected versions: Debian 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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Common Problems 117510

Ubuntu 20.04 LTS Slow Disk I/O Under Moderate Load

🟡 Medium   ⏱ 5–30 min  Last verified: 25 May 2020 📖 ~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 115535

RHEL 7 Postfix Queue Stuck By SELinux Policy

🟡 Medium   ⏱ 5–30 min  Last verified: 25 May 2020 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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