Security Hardening

Debian 11 — ruby-nokogiri — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — ruby-nokogiri — multiple vulnerabilities (5 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-2012-6685 CVE-2019-5477 CVE-2020-26247 CVE-2022-24836 CVE-2022-29181 Upstream summary: Nokogiri before 1.5.4 is vulnerable to XXE attacks Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick […]

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

Debian 12 — libvorbis — 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-2007-3106 CVE-2007-4029 CVE-2007-4065 CVE-2007-4066 CVE-2008-1419 CVE-2008-1420 CVE-2008-1423 CVE-2008-2009  +10 more Upstream summary: lib/info.c in libvorbis 1.1.2, and possibly other versions before 1.2.0, allows context-dependent attackers to cause a […]

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Debian 12 — bluez-firmware — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — bluez-firmware — multiple vulnerabilities (4 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-2021-34145 CVE-2021-34146 CVE-2021-34147 CVE-2021-34148 Upstream summary: The Bluetooth Classic implementation in the Cypress WICED BT stack through 2.9.0 for CYW20735B1 devices does not properly handle the reception of […]

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

Debian 12 — afuse — 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-2008-2232 Upstream summary: The expand_template function in afuse.c in afuse 0.2 allows local users to gain privileges via shell metacharacters in a pathname. Table of contents Symptom & […]

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Debian 13 — mupen64plus-core — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — mupen64plus-core — 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-2025-29366 CVE-2025-9688 Upstream summary: In mupen64plus v2.6.0 there is an array overflow vulnerability in the write_rdram_regs and write_rdram_regs functions, which enables executing arbitrary commands on the host machine. […]

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Debian 13 — pdfcrack — vulnerability — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — pdfcrack — 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-2020-22336 Upstream summary: An issue was discovered in pdfcrack 0.17 thru 0.18, allows attackers to execute arbitrary code via a stack overflow in the MD5 function. Table of contents […]

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

Debian 11 — freeipmi — 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-2026-33554 Upstream summary: ipmi-oem in FreeIPMI before 1.16.17 has exploitable buffer overflows on response messages. The Intelligent Platform Management Interface (IPMI) specification defines a set of interfaces for […]

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Debian 12 — p7zip — multiple vulnerabilities (18 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — p7zip — 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-2008-6536 CVE-2015-1038 CVE-2016-2334 CVE-2016-2335 CVE-2016-9296 CVE-2017-17969 CVE-2022-47069 CVE-2022-47111  +10 more Upstream summary: Unspecified vulnerability in 7-zip before 4.5.7 has unknown impact and remote attack vectors, as demonstrated by […]

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Debian 11 — w3m — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — w3m — 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-2002-1335 CVE-2002-1348 CVE-2006-6772 CVE-2010-2074 CVE-2016-9422 CVE-2016-9423 CVE-2016-9424 CVE-2016-9425  +12 more Upstream summary: Cross-site scripting (XSS) vulnerability in w3m 0.3.2 does not escape an HTML tag in a frame, […]

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