Security Hardening

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

Debian 12 — openimageio — 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-2022-36354 CVE-2022-38143 CVE-2022-41639 CVE-2022-41649 CVE-2022-41684 CVE-2022-41794 CVE-2022-41837 CVE-2022-41838  +12 more Upstream summary: A heap out-of-bounds read vulnerability exists in the RLA format parser of OpenImageIO master-branch-9aeece7a and v2.3.19.0. […]

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Debian 12 — ruby-icalendar — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — ruby-icalendar — 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-2026-33635 Upstream summary: iCalendar is a Ruby library for dealing with iCalendar files in the iCalendar format defined by RFC-5545. Starting in version 2.0.0 and prior to version […]

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Debian 11 — pure-ftpd — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — pure-ftpd — multiple vulnerabilities (8 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-2004-0656 CVE-2011-0418 CVE-2011-1575 CVE-2019-20176 CVE-2020-9274 CVE-2020-9365 CVE-2021-40524 CVE-2024-48208 Upstream summary: The accept_client function in PureFTPd 1.0.18 and earlier allows remote attackers to cause a denial of service by […]

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Debian 12 — xdg-dbus-proxy — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — xdg-dbus-proxy — 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-2026-34080 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 — foomatic-filters — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — foomatic-filters — multiple vulnerabilities (8 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-2004-0801 CVE-2010-5325 CVE-2011-2697 CVE-2011-2923 CVE-2011-2924 CVE-2011-2964 CVE-2015-8327 CVE-2015-8560 Upstream summary: Unknown vulnerability in foomatic-rip in Foomatic before 3.0.2 allows local users or remote attackers with access to CUPS […]

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

Debian 13 — shorewall — 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-2004-0647 CVE-2005-2317 Upstream summary: shorewall 1.4.10c and earlier, and 2.0.x before 2.0.3a, allows local users to overwrite arbitrary files via a symlink attack on the chains-$$ temporary file. […]

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Debian 12 — golang-github-emicklei-go-restful — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — golang-github-emicklei-go-restful — 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-2022-1996 Upstream summary: Authorization Bypass Through User-Controlled Key in GitHub repository emicklei/go-restful prior to v3.8.0. Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick […]

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Debian 12 — golang-github-prometheus-client-golang — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — golang-github-prometheus-client-golang — 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-2022-21698 Upstream summary: client_golang is the instrumentation library for Go applications in Prometheus, and the promhttp package in client_golang provides tooling around HTTP servers and clients. In client_golang […]

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Debian 13 — libui-dialog-perl — vulnerability — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — libui-dialog-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-2008-7315 Upstream summary: UI-Dialog 1.09 and earlier allows remote attackers to execute arbitrary commands. Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage […]

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