Linux

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

Debian 11 — lmbench — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 12 March 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2008-4968 Upstream summary: The (1) rccs and (2) STUFF scripts in lmbench 3.0-a7 allow local users to overwrite arbitrary files via a symlink attack on a /tmp/sdiff.##### temporary […]

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

Debian 11 — kile — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 12 March 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2006-6085 Upstream summary: Kile before 1.9.3 does not assign a backup file the same permissions as the original file, which might allow local users to obtain sensitive information. […]

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

AlmaLinux 8 — ctags — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2023:2863 Related CVEs: CVE-2022-4515 Upstream summary: Ctags is a C programming language indexing and cross-reference tool. Security Fix(es): * ctags: arbitrary command execution via a tag file with a crafted filename (CVE-2022-4515) […]

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

Debian 11 — scapy — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 12 March 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-1010142 Upstream summary: scapy 2.4.0 is affected by: Denial of Service. The impact is: infinite loop, resource consumption and program unresponsive. The component is: _RADIUSAttrPacketListField.getfield(self..). The attack vector […]

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How to Configure rkhunter Rootkit Scanner on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Configure rkhunter Rootkit Scanner on Debian 9

Introduction This guide explains how to Configure rkhunter Rootkit Scanner on Debian 9 on Debian 9 Stretch. Debian Stretch uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 9 install with the […]

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

Debian 11 — chkrootkit — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 12 March 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2014-0476 Upstream summary: The slapper function in chkrootkit before 0.50 does not properly quote file paths, which allows local users to execute arbitrary code via a Trojan horse […]

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Alpine Linux edge — librewolf — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — librewolf — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 99.0-r0 📖 ~4 min read  •  Source: Alpine secdb entry — librewolf 99.0-r0 Related CVEs: CVE-2022-1097 CVE-2022-24713 CVE-2022-28281 CVE-2022-28282 CVE-2022-28283 CVE-2022-28284 CVE-2022-28285 CVE-2022-28286  +12 more Upstream summary: Alpine community repository for vedge ships librewolf 99.0-r0 which […]

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

Debian 11 — schroot — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 12 March 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2022-2787 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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Ubuntu 18.04 — grub2-signed — multiple vulnerabilities (17 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — grub2-signed — multiple vulnerabilities (17 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 12 March 2022 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4992-1 Related CVEs: CVE-2020-14372 CVE-2020-25632 CVE-2020-27749 CVE-2020-27779 CVE-2021-20225 CVE-2021-20233 https://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/GRUB2SecureBootBypass2021 https://launchpad.net/bugs/1889556  +9 more Upstream summary: Máté Kukri discovered that the acpi command in GRUB 2 allowed privileged users to load […]

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How to Configure ZFS on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Configure ZFS on Debian 11

Introduction This guide explains how to Configure ZFS on Debian 11 on Debian 11 Bullseye. Debian Bullseye uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 11 install with the standard repositories […]

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