Debian 13 Trixie

Debian 13 — litmus — vulnerability — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — litmus — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 18 August 2025 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2009-2474 Upstream summary: neon before 0.28.6, when OpenSSL or GnuTLS is used, does not properly handle a '\0' character in a domain name in the subject's Common Name […]

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How to Enable and Manage AppArmor Profiles on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Enable and Manage AppArmor Profiles on Debian 13

Introduction This guide explains how to Enable and Manage AppArmor Profiles on Debian 13 on Debian 13 Trixie. Debian Trixie 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 13 install with […]

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Debian 13 — cfingerd — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — cfingerd — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 18 August 2025 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2001-0735 CVE-2013-1049 Upstream summary: Buffer overflow in cfingerd 1.4.3 and earlier with the ALLOW_LINE_PARSING option enabled allows local users to execute arbitrary code via a long line in […]

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Debian 13 — linux — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — linux — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 18 August 2025 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2004-0230 CVE-2005-3660 CVE-2007-3719 CVE-2008-2544 CVE-2008-4609 CVE-2010-4563 CVE-2010-5313 CVE-2010-5321  +12 more Upstream summary: TCP, when using a large Window Size, makes it easier for remote attackers to guess sequence […]

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Common Problems 119640

Debian 13 sudo Access Lost After Group or PAM Changes

🟡 Medium   ⏱ 5–30 min  Last verified: 18 August 2025 📖 ~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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How to Configure Database Backups with Automysqlbackup on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Configure Database Backups with Automysqlbackup on Debian 13

Introduction Debian 13 Trixie is built around the ethos of stability and free software. Setting up configure database backups with automysqlbackup on Trixie leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Trixie freeze. Follow each step carefully and the resulting […]

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How to Configure Kerberos Client on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Configure Kerberos Client on Debian 13

Introduction This guide explains how to Configure Kerberos Client on Debian 13 on Debian 13 Trixie. Debian Trixie 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 13 install with the standard […]

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Debian 13 — libotr — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — libotr — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 17 August 2025 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2012-3461 CVE-2016-2851 Upstream summary: The (1) otrl_base64_otr_decode function in src/b64.c; (2) otrl_proto_data_read_flags and (3) otrl_proto_accept_data functions in src/proto.c; and (4) decode function in toolkit/parse.c in libotr before 3.2.1 […]

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Debian 13 — adminer — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — adminer — multiple vulnerabilities (8 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 17 August 2025 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2018-7667 CVE-2020-35572 CVE-2021-21311 CVE-2021-29625 CVE-2021-43008 CVE-2023-45195 CVE-2023-45196 CVE-2025-43960 Upstream summary: Adminer through 4.3.1 has SSRF via the server parameter. Table of contents Symptom & Impact Environment & Reproduction […]

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Common Problems 119556

Debian 13 GRUB Rescue Prompt After Disk Layout Change

🟡 Medium   ⏱ 5–30 min  Last verified: 17 August 2025 📖 ~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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