Linux

How to Sign Container Images with cosign on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Sign Container Images with cosign on Debian 13

Introduction This guide explains how to Sign Container Images with cosign 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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Common Problems 114098

RHEL 10 Auditd Backlog Overflows and Drops Security Events

🔴 Critical   ⏱ 5–30 min  Last verified: 14 November 2025 Affected versions: RHEL 10 📖 ~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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Debian 13 — udisks2 — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — udisks2 — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 14 November 2025 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2014-0004 CVE-2018-17336 CVE-2021-3802 CVE-2025-8067 Upstream summary: Stack-based buffer overflow in udisks before 1.0.5 and 2.x before 2.1.3 allows local users to cause a denial of service (crash) and […]

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Debian 13 — ruby-oauth — vulnerability — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — ruby-oauth — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 14 November 2025 Affected versions: Debian 13 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2016-11086 Upstream summary: lib/oauth/consumer.rb in the oauth-ruby gem through 0.5.4 for Ruby does not verify server X.509 certificates if a certificate bundle cannot be found, which allows man-in-the-middle attackers […]

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

Debian 13 — kiwix — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 14 November 2025 Affected versions: Debian 13 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2015-1032 Upstream summary: Cross-site scripting (XSS) vulnerability in Kiwix before 0.9.1, when using kiwix-serve, allows remote attackers to inject arbitrary web script or HTML via the pattern parameter to […]

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Debian 13 — apache-mime4j — vulnerability — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — apache-mime4j — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 14 November 2025 Affected versions: Debian 13 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2024-21742 Upstream summary: Improper input validation allows for header injection in MIME4J library when using MIME4J DOM for composing message. This can be exploited by an attacker to add […]

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Debian 11 — jupyter-server — multiple vulnerabilities (11 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — jupyter-server — multiple vulnerabilities (11 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 14 November 2025 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2020-26232 CVE-2020-26275 CVE-2022-24757 CVE-2022-29241 CVE-2023-39968 CVE-2023-40170 CVE-2023-49080 CVE-2025-61669  +3 more Upstream summary: Jupyter Server before version 1.0.6 has an Open redirect vulnerability. A maliciously crafted link to a […]

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Debian 13 — xine-ui — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — xine-ui — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 14 November 2025 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2004-0372 CVE-2004-1951 CVE-2006-1905 CVE-2006-2230 CVE-2007-0254 Upstream summary: xine allows local users to overwrite arbitrary files via a symlink attack on a bug report email that is generated by […]

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

Debian 13 — rsnapshot — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 14 November 2025 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2005-1064 Upstream summary: The copy_symlink function in rsnapshot 1.2.0 and 1.1.x before 1.1.7 changes the ownership of files that a symlink points to rather than the symlink itself, […]

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

Debian 11 — libyaml-libyaml-perl — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 14 November 2025 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2012-1152 CVE-2013-6393 CVE-2014-2525 CVE-2014-9130 CVE-2025-40908 Upstream summary: Multiple format string vulnerabilities in the error reporting functionality in the YAML::LibYAML (aka YAML-LibYAML and perl-YAML-LibYAML) module 0.38 for Perl allow […]

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