Linux

Common Problems 115052

RHEL 8 System Falls Into Emergency Mode Due to fstab Mistake

🔴 Critical   ⏱ 5–30 min  Last verified: 22 June 2019 Affected versions: 8.4 8.5 8.6 8.7 8.8 8.9 8.10 📖 ~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 […]

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openSUSE Tumbleweed — libcryptopp5_6 — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — libcryptopp5_6 — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE security advisory (see also SUSE bugzilla) Related CVEs: CVE-2015-2141 Upstream summary: The InvertibleRWFunction::CalculateInverse function in rw.cpp in libcrypt++ 5.6.2 does not properly blind private key operations for the Rabin-Williams digital signature algorithm, which […]

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How to Install Node.js on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Install Node.js on RHEL 7

How to Install Node.js on RHEL 7 Node.js is a server-side JavaScript runtime built on Chrome’s V8 engine. It is widely used for building REST APIs, real-time applications, microservices, and command-line tooling. Red Hat Enterprise Linux 7 does not ship a recent version of Node.js in its default repositories, so several installation methods are available […]

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Ubuntu 14.04 — paramiko — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — paramiko — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 22 June 2019 Affected versions: Ubuntu 14.04 (trusty) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-3796-1 Related CVEs: CVE-2018-1000805 CVE-2018-7750 Upstream summary: Daniel Hoffman discovered that Paramiko incorrectly handled authentication when being used as a server. A remote attacker could use this issue to bypass […]

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How to Set a Hostname and FQDN on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Set a Hostname and FQDN on RHEL 7

How to Set a Hostname and FQDN on RHEL 7 A properly configured hostname is one of the most fundamental aspects of Linux system administration. On Red Hat Enterprise Linux 7, the hostname identifies your machine on the network and appears in log files, shell prompts, and monitoring tools. Getting it right — including the […]

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Gentoo Linux — media-libs/faac — vulnerability — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — media-libs/faac — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202208-16 Related CVEs: CVE-2018-19886 Upstream summary: An invalid pointer can be dereferenced in the huffcode function of libfaac/huff2.c, leading to a crash. Table of contents Symptom & Impact Environment & Reproduction Root […]

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

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

🔴 Critical   ⏱ 15–90 min  Last verified: 22 June 2019 Affected versions: SLES 12 📖 ~4 min read  •  Source: SUSE advisory SUSE-CU-2020:177-1 (see also SUSE bugzilla) Related CVEs: CVE-2019-18218 CVE-2012-1571 CVE-2014-3710 CVE-2014-8116 CVE-2014-8117 CVE-2019-8905 CVE-2019-8906 CVE-2019-8907  +4 more Upstream summary: cdf_read_property_info in cdf.c in file through 5.37 does not restrict the number of […]

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Amazon Linux 2 — patch — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — patch — multiple vulnerabilities (7 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2-2019-1317 Related CVEs: CVE-2016-10713 CVE-2018-1000156 CVE-2018-20969 CVE-2018-6952 CVE-2019-13638 CVE-2015-1418 CVE-2019-13636 Upstream summary: do_ed_script in pch.c in GNU patch through 2.7.6 does not block strings beginning with a ! character. NOTE: […]

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