Linux

Ubuntu 14.04 — lrzip — multiple vulnerabilities (15 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — lrzip — multiple vulnerabilities (15 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 22 April 2023 Affected versions: Ubuntu 14.04 (trusty) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5840-1 Related CVEs: CVE-2018-5786 CVE-2020-25467 CVE-2021-27345 CVE-2021-27347 CVE-2022-26291 CVE-2022-28044 CVE-2017-8844 CVE-2017-8846  +7 more Upstream summary: It was discovered that Long Range ZIP incorrectly handled pointers. If a user or an […]

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openSUSE Tumbleweed — ruby3.1-rubygem-tzinfo — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — ruby3.1-rubygem-tzinfo — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2022:2592-1 (see also SUSE bugzilla) Related CVEs: CVE-2022-31163 Upstream summary: TZInfo is a Ruby library that provides access to time zone data and allows times to be converted using time zone rules. […]

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Ubuntu 22.04 — etcd — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — etcd — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 22 April 2023 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6189-1 Related CVEs: CVE-2021-28235 Upstream summary: It was discovered that etcd leaked credentials when debugging was enabled. This allowed remote attackers to discover etcd authentication credentials and possibly escalate privileges […]

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CentOS Stream 9 — tpm2-tss — vulnerability — patch and remediation guide — diagnosis and fix on CentOS Stream 9

CentOS Stream 9 — tpm2-tss — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 22 April 2023 Affected versions: CentOS Stream 9 📖 ~4 min read  •  Source: AlmaLinux/RHEL advisory ALSA-2023:6685 Related CVEs: CVE-2023-22745 Upstream summary: The tpm2-tss packages provide the Intel implementation of the Trusted Platform Module (TPM) 2.0 System API library. This library enables programs to interact with TPM […]

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openSUSE Tumbleweed — ctags — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — ctags — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory SUSE-CU-2023:1095-1 (see also SUSE bugzilla) Related CVEs: CVE-2022-4515 CVE-2014-7204 Upstream summary: A flaw was found in Exuberant Ctags in the way it handles the "-o" option. This option specifies the tag filename. […]

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Como instalar o Nginx no Ubuntu 18.04 [Início rápido] — step-by-step Linux tutorial on Progressive Robot

Como instalar o Nginx no Ubuntu 18.04 [Início rápido]

O Nginx é um dos servidores Web mais populares no mundo e é responsável por hospedar alguns dos sites de maior tráfego na Internet. Ele é mais amigável do que o Apache em termos de recursos na maioria dos casos e pode ser usado como um servidor Web ou como proxy…

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Oracle Linux 9 — tomcat — security and stability fixes — required update — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — tomcat — security and stability fixes — required update (ELSA-2023-6570)

🟡 Medium   ⏱ 10–30 min  Last verified: 21 April 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-6570 Related CVEs: CVE-2023-28708 CVE-2023-28709 CVE-2023-24998 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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Common Problems 117944

Ubuntu 18.04 drops to GRUB rescue prompt

🟡 Medium   ⏱ 5–30 min  Last verified: 21 April 2023 📖 ~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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Alpine Linux edge — tinyssh — vulnerability — patch and remediation guide — diagnosis and fix on Alpine Linux edge

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

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 20230101-r3 📖 ~4 min read  •  Source: Alpine secdb entry — tinyssh 20230101-r3 Related CVEs: CVE-2023-48795 Upstream summary: Alpine community repository for vedge ships tinyssh 20230101-r3 which addresses CVE-2023-48795. Table of contents Symptom & Impact Environment […]

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