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Debian 11 — librcsb-core-wrapper — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — librcsb-core-wrapper — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 30 March 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2015-2305 Upstream summary: Integer overflow in the regcomp implementation in the Henry Spencer BSD regex library (aka rxspencer) alpha3.8.g5 on 32-bit platforms, as used in NetBSD through 6.1.5 […]

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Debian 11 — golang-github-appc-docker2aci — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — golang-github-appc-docker2aci — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 30 March 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2016-7569 CVE-2016-8579 Upstream summary: Directory traversal vulnerability in docker2aci before 0.13.0 allows remote attackers to write to arbitrary files via a .. (dot dot) in the embedded layer […]

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Gentoo Linux — app-emulation/spice — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — app-emulation/spice — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202208-10 Related CVEs: CVE-2021-14355 CVE-2021-20201 CVE-2019-3813 Upstream summary: Multiple vulnerabilities have been discovered in Spice Server, please review the CVE identifiers referenced below for details. Table of contents Symptom & Impact Environment […]

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Debian 11 — ant — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — ant — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 30 March 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2018-10886 CVE-2020-11979 CVE-2020-1945 CVE-2021-36373 CVE-2021-36374 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative […]

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How to Install and Configure Traefik Reverse Proxy on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Install and Configure Traefik Reverse Proxy on RHEL 7

How to Install and Configure Traefik Reverse Proxy on RHEL 7 Traefik is a modern, cloud-native reverse proxy and load balancer that differentiates itself from Nginx and HAProxy through its dynamic configuration model — routing rules can be updated at runtime without restarting the proxy. Originally designed for microservices and Docker environments, Traefik works equally […]

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Debian 11 — ruby-jmespath — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — ruby-jmespath — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 30 March 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2022-32511 Upstream summary: jmespath.rb (aka JMESPath for Ruby) before 1.6.1 uses JSON.load in a situation where JSON.parse is preferable. Table of contents Symptom & Impact Environment & Reproduction […]

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Ubuntu 20.04 — heimdal — multiple vulnerabilities (10 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — heimdal — multiple vulnerabilities (10 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 30 March 2022 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5849-1 Related CVEs: CVE-2022-45142 CVE-2021-44758 CVE-2022-3437 CVE-2022-42898 CVE-2022-44640 CVE-2022-41916 CVE-2018-16860 CVE-2019-12098  +2 more Upstream summary: Helmut Grohne discovered that Heimdal GSSAPI incorrectly handled logical conditions that are related to memory […]

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SLES 15 — arpwatch — vulnerability — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — arpwatch — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 30 March 2022 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2021:14759-1 (see also SUSE bugzilla) Related CVEs: CVE-2021-25321 Upstream summary: A UNIX Symbolic Link (Symlink) Following vulnerability in arpwatch of SUSE Linux Enterprise Server 11-SP4-LTSS, SUSE Manager Server 4.0, SUSE OpenStack Cloud […]

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

Oracle Linux 8 — firefox — vulnerability — patch and remediation guide (ELSA-2021-2233)

🔴 Critical   ⏱ 15–90 min  Last verified: 30 March 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-2233 Related CVEs: CVE-2021-29967 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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How to Configure Apache mod_proxy as a Reverse Proxy on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Configure Apache mod_proxy as a Reverse Proxy on RHEL 8

Apache’s mod_proxy module turns your existing Apache web server into a fully functional reverse proxy without requiring a second web server like Nginx. This is particularly useful when you already have Apache managing SSL termination, virtual hosts, or authentication, and want to forward traffic to a backend application server such as Tomcat, Node.js, or a […]

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