Linux

Debian 12 — pyrad — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — pyrad — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 16 August 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2013-0294 CVE-2013-0342 Upstream summary: packet.py in pyrad before 2.1 uses weak random numbers to generate RADIUS authenticators and hash passwords, which makes it easier for remote attackers to […]

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Debian 12 — passenger — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — passenger — multiple vulnerabilities (6 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 16 August 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2013-4136 CVE-2014-1831 CVE-2015-7519 CVE-2016-10345 CVE-2017-16355 CVE-2018-12029 Upstream summary: ext/common/ServerInstanceDir.h in Phusion Passenger gem before 4.0.6 for Ruby allows local users to gain privileges or possibly change the ownership […]

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Ubuntu 22.04 — python-bottle — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — python-bottle — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 16 August 2023 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5532-1 Related CVEs: CVE-2022-31799 Upstream summary: It was discovered that Bottle incorrectly handled errors during early request binding. An attacker could possibly use this issue to disclose sensitive information. (CVE-2022-31799) […]

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Oracle Linux 9 — thunderbird — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — thunderbird — vulnerability — patch and remediation guide (ELSA-2022-6717)

🟠 High   ⏱ 15–60 min  Last verified: 16 August 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-6717 Related CVEs: CVE-2022-40956 CVE-2022-40958 CVE-2022-40960 CVE-2022-40962 CVE-2022-40959 CVE-2022-40957 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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Oracle Linux 8 — aardvark-dns — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — aardvark-dns — vulnerability — patch and remediation guide (ELSA-2023-12579)

🟠 High   ⏱ 15–60 min  Last verified: 16 August 2023 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-12579 Related CVEs: CVE-2023-25809 CVE-2023-27561 CVE-2023-28642 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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Alpine Linux 3.18 — croc — vulnerability — patch and remediation guide — diagnosis and fix on Alpine Linux 3.18

Alpine Linux 3.18 — croc — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.18 / fixed in 9.1.0-r0 📖 ~4 min read  •  Source: Alpine secdb entry — croc 9.1.0-r0 Related CVEs: CVE-2021-31603 Upstream summary: Alpine community repository for vv3.18 ships croc 9.1.0-r0 which addresses CVE-2021-31603. Table of contents Symptom & Impact Environment […]

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How to Mount NFS Shares at Boot on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Mount NFS Shares at Boot on Debian 12

Introduction This guide explains how to Mount NFS Shares at Boot on Debian 12 on Debian 12 Bookworm. Debian Bookworm 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 12 install with […]

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AlmaLinux 9 — opensc — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on AlmaLinux 9

AlmaLinux 9 — opensc — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 9 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2024:0966 Related CVEs: CVE-2023-5992 CVE-2023-40660 CVE-2023-40661 CVE-2023-4535 CVE-2023-2977 Upstream summary: The OpenSC set of libraries and utilities provides support for working with smart cards. OpenSC focuses on cards that support cryptographic operations […]

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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-2024-3307)

🟠 High   ⏱ 15–60 min  Last verified: 15 August 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2024-3307 Related CVEs: CVE-2024-23672 CVE-2024-24549 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 119964

Debian 12 Release File Is Not Valid Yet During apt update

🟠 High   ⏱ 5–30 min  Last verified: 15 August 2023 Affected versions: Debian 12 📖 ~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 & […]

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