Security Hardening

Debian 12 — lightdm — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — lightdm — multiple vulnerabilities (6 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2011-3153 CVE-2011-3349 CVE-2011-4105 CVE-2012-1111 CVE-2013-4331 CVE-2015-8316 Upstream summary: dmrc.c in Light Display Manager (aka LightDM) before 1.1.1 allows local users to read arbitrary files via a symlink attack […]

Read more
Debian 12 — libgrss — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — libgrss — 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-2016-20011 Upstream summary: libgrss through 0.7.0 fails to perform TLS certificate verification when downloading feeds, allowing remote attackers to manipulate the contents of feeds without detection. This occurs […]

Read more
Debian 12 — hylafax — multiple vulnerabilities (11 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — hylafax — multiple vulnerabilities (11 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-2001-1034 CVE-2002-1049 CVE-2002-1050 CVE-2003-0886 CVE-2004-1182 CVE-2005-3069 CVE-2005-3070 CVE-2005-3538  +3 more Upstream summary: Format string vulnerability in Hylafax on FreeBSD allows local users to execute arbitrary code via format […]

Read more
Debian 13 — gkrellm — vulnerability — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — gkrellm — 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-2003-0723 Upstream summary: Buffer overflow in gkrellmd for gkrellm 2.1.x before 2.1.14 may allow remote attackers to execute arbitrary code. Table of contents Symptom & Impact Environment & […]

Read more
Debian 9 — smarty3 — vulnerability — patch and remediation guide — diagnosis and fix on Debian 9

Debian 9 — smarty3 — 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-2017-1000480 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

Read more
Debian 13 — django-markupfield — vulnerability — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — django-markupfield — 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-2015-0846 Upstream summary: django-markupfield before 1.3.2 uses the default docutils RESTRUCTUREDTEXT_FILTER_SETTINGS settings, which allows remote attackers to include and read arbitrary files via unspecified vectors. Table of contents Symptom […]

Read more
Debian 9 — plexus-utils — vulnerability — patch and remediation guide — diagnosis and fix on Debian 9

Debian 9 — plexus-utils — 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-2017-1000487 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

Read more
Debian 12 — liboping — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — liboping — 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-2009-3614 Upstream summary: liboping 1.3.2 allows users reading arbitrary files upon the local system. Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage […]

Read more
Debian 11 — snapcast — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — snapcast — 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-2023-36177 Upstream summary: An issue was discovered in badaix Snapcast version 0.27.0, allows remote attackers to execute arbitrary code and gain sensitive information via crafted request in JSON-RPC-API. […]

Read more
CHAT