Security Hardening

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

Oracle Linux 8 — thunderbird — vulnerability — patch and remediation guide (ELSA-2021-2264)

🟠 High   ⏱ 15–60 min  Last verified: 23 September 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-2264 Related CVEs: CVE-2021-29956 CVE-2021-29967 CVE-2021-29957 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification […]

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IBM AIX 7.1 — CVE-2021-29691 — vulnerability — patch and remediation guide — diagnosis and fix on IBM AIX 7.1

IBM AIX 7.1 — CVE-2021-29691 — vulnerability — patch and remediation guide

🟠 High   ⏱ 30–90 min  Last verified: 23 September 2021 Affected versions: IBM AIX 7.1 📖 ~4 min read  •  Source: NVD CVE-2021-29691, IBM Support Bulletin CVE: CVE-2021-29691 NVD summary: IBM Security Identity Manager 7.0.2 contains hard-coded credentials, such as a password or cryptographic key, which it uses for its own inbound authentication, outbound […]

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openSUSE Tumbleweed — squashfs — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — squashfs — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2023:4424-1 (see also SUSE bugzilla) Related CVEs: CVE-2021-40153 CVE-2021-41072 CVE-2012-4025 CVE-2015-4645 CVE-2012-4024 Upstream summary: squashfs_opendir in unsquash-1.c in Squashfs-Tools 4.5 stores the filename in the directory entry; this is then used by […]

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FreeBSD 13 — wordpress-mu — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — wordpress-mu — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 22 September 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: wordpress — remote admin password reset vulnerability Related CVEs: CVE-2007-4894 CVE-2008-4107 CVE-2008-5278 CVE-2009-2762 Upstream summary: WordPress reports: A specially crafted URL could be requested that would allow an attacker to […]

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Common Problems 117544

Ubuntu 20.04 LTS Docker Permission Denied on /var/run/docker.sock

🟡 Medium   ⏱ 5–30 min  Last verified: 22 September 2021 📖 ~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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Oracle Linux 8 — .NET 5.0 security, bug fix, and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — .NET 5.0 security, bug fix, and — enhancement update — new behaviour and fixes

🟠 High   ⏱ 15–60 min  Last verified: 22 September 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-2200 Related CVEs: CVE-2022-29117 CVE-2022-23267 CVE-2022-29145 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification […]

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How to Install Netdata on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Install Netdata on FreeBSD 13

Introduction This guide explains how to Install Netdata on FreeBSD 13 on FreeBSD 13. FreeBSD uses the pkg(8) binary package manager, rc.conf(5) for service startup configuration, and pf(4) as its primary packet filter. There is no SELinux or AppArmor — instead, FreeBSD provides the MAC (Mandatory Access Control) framework and Capsicum for fine-grained privilege separation. […]

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FreeBSD 13 — opus-tools — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — opus-tools — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 22 September 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: vorbis-tools, opus-tools — multiple vulnerabilities Related CVEs: CVE-2014-9638 CVE-2014-9639 CVE-2015-6749 Upstream summary: Paris Zoumpouloglou reports: I discovered an integer overflow issue in oggenc, related to the number of channels in […]

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Debian 11 — libgtop2 — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — libgtop2 — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 22 September 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2007-0235 Upstream summary: Stack-based buffer overflow in the glibtop_get_proc_map_s function in libgtop before 2.14.6 (libgtop2) allows local users to cause a denial of service (crash) and possibly execute […]

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