Security Hardening

Debian 13 — tnef — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — tnef — multiple vulnerabilities (6 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2017-6307 CVE-2017-6308 CVE-2017-6309 CVE-2017-6310 CVE-2017-8911 CVE-2019-18849 Upstream summary: An issue was discovered in tnef before 1.4.13. Two OOB Writes have been identified in src/mapi_attr.c:mapi_attr_read(). These might lead to […]

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Debian 11 — python-keystoneclient — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — python-keystoneclient — multiple vulnerabilities (7 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2013-2013 CVE-2013-2104 CVE-2013-2166 CVE-2013-2167 CVE-2014-0105 CVE-2014-7144 CVE-2015-1852 Upstream summary: The user-password-update command in python-keystoneclient before 0.2.4 accepts the new password in the –password argument, which allows local users […]

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

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

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2008-2958 CVE-2020-25031 Upstream summary: Race condition in (1) checkinstall 1.6.1 and (2) installwatch allows local users to overwrite arbitrary files and have other impacts via symlink and possibly […]

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Debian 11 — rust-miow — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — rust-miow — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2020-35921 Upstream summary: An issue was discovered in the miow crate before 0.3.6 for Rust. It has false expectations about the std::net::SocketAddr memory representation. Table of contents Symptom […]

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Debian 9 — vim — vulnerability — patch and remediation guide — diagnosis and fix on Debian 9

Debian 9 — vim — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 9 (stretch) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-12735 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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Debian 13 — krita — vulnerability — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — krita — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 13 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2025-59820 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 […]

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Debian 11 — commons-configuration — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — commons-configuration — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2025-46392 Upstream summary: Uncontrolled Resource Consumption vulnerability in Apache Commons Configuration 1.x. There are a number of issues in Apache Commons Configuration 1.x that allow excessive resource consumption […]

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Debian 12 — mgdiff — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — mgdiff — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2005-3331 Upstream summary: viewpatch in mgdiff 1.0 allows local users to overwrite arbitrary files via a symlink attack on temporary files. Table of contents Symptom & Impact Environment […]

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

Debian 11 — dist — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2008-4949 Upstream summary: dist 3.5 allows local users to overwrite arbitrary files via a symlink attack on (a) /tmp/cil#####, (b) /tmp/pdo#####, and (c) /tmp/pdn##### temporary files, related to […]

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