Package Management

Debian 11 — apt-cacher — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — apt-cacher — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 1 January 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2005-1854 CVE-2017-7443 Upstream summary: Unknown vulnerability in apt-cacher in Debian 3.1, related to "missing input sanitising," allows remote attackers to execute arbitrary commands on the caching server. Table […]

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AlmaLinux 8 — irssi — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — irssi — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2020:1616 Related CVEs: CVE-2019-13045 Upstream summary: Irssi is a modular IRC client with Perl scripting. Security Fix(es): * irssi: use after free when sending SASL login to server (CVE-2019-13045) For more details […]

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

Debian 11 — byacc — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 1 January 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2008-3196 Upstream summary: skeleton.c in yacc does not properly handle reduction of a rule with an empty right hand side, which allows context-dependent attackers to cause an out-of-bounds […]

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Debian 11 — golang-github-go-macaron-csrf — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — golang-github-go-macaron-csrf — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 1 January 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2018-25060 Upstream summary: A vulnerability was found in Macaron csrf and classified as problematic. Affected by this issue is some unknown functionality of the file csrf.go. The manipulation […]

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Gentoo Linux — dev-util/pycharm-community — vulnerability — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — dev-util/pycharm-community — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202107-45 Related CVEs: CVE-2021-30005 Upstream summary: Insufficient validation exists within PyCharm’s checks for fetching projects from VCS. Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step […]

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

Oracle Linux 8 — kernel — vulnerability — patch and remediation guide (ELSA-2024-5101)

🟠 High   ⏱ 15–60 min  Last verified: 1 January 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2024-5101 Related CVEs: CVE-2021-46939 CVE-2021-47018 CVE-2021-47257 CVE-2021-47284 CVE-2021-47304 CVE-2021-47373 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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IBM AIX 7.1 — CVE-2021-20552 — vulnerability — patch and remediation guide — diagnosis and fix on IBM AIX 7.1

IBM AIX 7.1 — CVE-2021-20552 — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 15–45 min  Last verified: 31 December 2021 Affected versions: IBM AIX 7.1 📖 ~4 min read  •  Source: NVD CVE-2021-20552, IBM Support Bulletin CVE: CVE-2021-20552 NVD summary: IBM Sterling File Gateway 6.0.0.0 through 6.1.1.0 could allow a remote attacker to obtain sensitive information when a detailed technical error message is returned […]

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FreeBSD 13 — rubygem-jquery-rails — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — rubygem-jquery-rails — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 31 December 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: rubygem-rails — multiple vulnerabilities Related CVEs: CVE-2015-1840 CVE-2015-3224 CVE-2015-3225 CVE-2015-3226 CVE-2015-3227 Upstream summary: Ruby on Rails blog: Rails 3.2.22, 4.1.11 and 4.2.2 have been released, along with web console and […]

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Oracle Linux 8 — container-tools:ol8 security, bug fix, and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — container-tools:ol8 security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2020-1650)

🟡 Medium   ⏱ 10–30 min  Last verified: 31 December 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-1650 Related CVEs: CVE-2020-1726 CVE-2019-19921 CVE-2020-1702 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 Secure Nginx with Let's Encrypt on CentOS Stream 9 — step-by-step CentOS Stream 9 tutorial on Progressive Robot

How to Secure Nginx with Let’s Encrypt on CentOS Stream 9

Introduction CentOS Stream 9 ships with a stable, security-hardened base that makes deploying secure nginx with let’s encrypt on centos stream 9 both straightforward and auditable. This tutorial covers the complete procedure for how to Secure Nginx with Let’s Encrypt on CentOS Stream 9, including dnf module streams where applicable, systemd unit management, and the […]

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