Security Hardening

Debian 9 — debian-lan-config — vulnerability — patch and remediation guide — diagnosis and fix on Debian 9

Debian 9 — debian-lan-config — 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-2019-3467 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 12 — libxalan2-java — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — libxalan2-java — 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-2014-0107 Upstream summary: The TransformerFactory in Apache Xalan-Java before 2.7.2 does not properly restrict access to certain properties when FEATURE_SECURE_PROCESSING is enabled, which allows remote attackers to bypass […]

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Debian 13 — libxml-atom-perl — vulnerability — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — libxml-atom-perl — vulnerability — 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-2012-1102 Upstream summary: It was discovered that the XML::Atom Perl module before version 0.39 did not disable external entities when parsing XML from potentially untrusted sources. This may […]

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Debian 11 — slic3r — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — slic3r — 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-2020-28590 CVE-2020-28591 CVE-2021-44961 CVE-2021-44962 CVE-2021-45846 CVE-2021-45847 CVE-2022-36788 Upstream summary: An out-of-bounds read vulnerability exists in the Obj File TriangleMesh::TriangleMesh() functionality of Slic3r libslic3r 1.3.0 and Master Commit 92abbc42. […]

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Debian 11 — xdg-user-dirs — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — xdg-user-dirs — 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-2017-15131 Upstream summary: It was found that system umask policy is not being honored when creating XDG user directories, since Xsession sources xdg-user-dirs.sh before setting umask policy. This […]

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Debian 12 — python-redis — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — python-redis — 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-2023-28858 Upstream summary: redis-py before 4.5.3 leaves a connection open after canceling an async Redis command at an inopportune time, and can send response data to the client […]

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

Debian 13 — iputils — 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-2010-2529 CVE-2025-47268 Upstream summary: Unspecified vulnerability in ping.c in iputils 20020927, 20070202, 20071127, and 20100214 on Mandriva Linux allows remote attackers to cause a denial of service (hang) […]

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Debian 12 — libgig — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — libgig — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2017-12950 CVE-2017-12951 CVE-2017-12952 CVE-2017-12953 CVE-2017-12954 CVE-2018-14449 CVE-2018-14450 CVE-2018-14451  +12 more Upstream summary: The gig::Region::Region function in gig.cpp in libgig 4.0.0 allows remote attackers to cause a denial of […]

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

Debian 12 — kile — 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-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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