Security Hardening

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

Debian 13 — sddm — multiple vulnerabilities (5 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-2014-7271 CVE-2014-7272 CVE-2015-0856 CVE-2018-14345 CVE-2020-28049 Upstream summary: Simple Desktop Display Manager (SDDM) before 0.10.0 allows local users to log in as user "sddm" without authentication. Table of contents […]

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Debian 12 — grml-debootstrap — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — grml-debootstrap — 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-2015-1378 Upstream summary: cmdlineopts.clp in grml-debootstrap in Debian 0.54, 0.68.x before 0.68.1, 0.7x before 0.78 is sourced without checking that the local directory is writable by non-root users. […]

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Debian 11 — file — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — file — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2003-0102 CVE-2003-1092 CVE-2004-1304 CVE-2007-1536 CVE-2007-2026 CVE-2007-2799 CVE-2009-0947 CVE-2009-0948  +12 more Upstream summary: Buffer overflow in tryelf() in readelf.c of the file command allows attackers to execute arbitrary code […]

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Debian 11 — wget2 — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — wget2 — multiple vulnerabilities (2 CVEs) — 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-2025-69194 CVE-2026-1858 Upstream summary: A security issue was discovered in GNU Wget2 when handling Metalink documents. The application fails to properly validate file paths provided in Metalink <file […]

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Debian 12 — dpdk — multiple vulnerabilities (18 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — dpdk — multiple vulnerabilities (18 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-2018-1059 CVE-2019-14818 CVE-2020-10722 CVE-2020-10723 CVE-2020-10724 CVE-2020-10725 CVE-2020-10726 CVE-2020-14374  +10 more Upstream summary: The DPDK vhost-user interface does not check to verify that all the requested guest physical range […]

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Debian 12 — openh264 — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — openh264 — 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-2025-27091 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 11 — starman — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — starman — 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-2026-40560 Upstream summary: Starman versions before 0.4018 for Perl allows HTTP Request Smuggling via Improper Header Precedence. Starman incorrectly prioritizes "Content-Length" over "Transfer-Encoding: chunked" when both headers are […]

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

Debian 11 — libgdiplus — 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-2010-1526 Upstream summary: Multiple integer overflows in libgdiplus 2.6.7, as used in Mono, allow attackers to execute arbitrary code via (1) a crafted TIFF file, related to the […]

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Debian 13 — tinyxml2 — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — tinyxml2 — multiple vulnerabilities (3 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-2018-11210 CVE-2024-50614 CVE-2024-50615 Upstream summary: TinyXML2 6.2.0 has a heap-based buffer over-read in the XMLDocument::Parse function in libtinyxml2.so. NOTE: The tinyxml2 developers have determined that the reported overflow […]

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Debian 13 — rust-vm-memory — vulnerability — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — rust-vm-memory — 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-2023-41051 Upstream summary: In a typical Virtual Machine Monitor (VMM) there are several components, such as boot loader, virtual device drivers, virtio backend drivers and vhost drivers, that need […]

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