Security Hardening

Debian 13 — icingaweb2 — multiple vulnerabilities (16 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — icingaweb2 — multiple vulnerabilities (16 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2018-18246 CVE-2018-18247 CVE-2018-18248 CVE-2018-18249 CVE-2018-18250 CVE-2020-24368 CVE-2021-32746 CVE-2021-32747  +8 more Upstream summary: Icinga Web 2 before 2.6.2 has CSRF via /icingaweb2/config/moduledisable?name=monitoring to disable the monitoring module, or via […]

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Debian 13 — bitlbee — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — bitlbee — multiple vulnerabilities (6 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-2008-3920 CVE-2008-3969 CVE-2012-1187 CVE-2016-10188 CVE-2016-10189 CVE-2017-5668 Upstream summary: Unspecified vulnerability in BitlBee before 1.2.2 allows remote attackers to "recreate" and "hijack" existing accounts via unspecified vectors. Table of […]

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

Debian 12 — libexif — 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-2005-0664 CVE-2006-4168 CVE-2007-2645 CVE-2007-6351 CVE-2007-6352 CVE-2009-3895 CVE-2012-2812 CVE-2012-2813  +12 more Upstream summary: Buffer overflow in the EXIF library (libexif) 0.6.9 does not properly validate the structure of the […]

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Debian 11 — libapache-session-browseable-perl — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — libapache-session-browseable-perl — 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-2020-36659 CVE-2026-8503 Upstream summary: In Apache::Session::Browseable before 1.3.6, validity of the X.509 certificate is not checked by default when connecting to remote LDAP backends, because the default configuration […]

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Debian 13 — qt6-base — multiple vulnerabilities (16 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — qt6-base — multiple vulnerabilities (16 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2022-25255 CVE-2023-24607 CVE-2023-32762 CVE-2023-32763 CVE-2023-33285 CVE-2023-34410 CVE-2023-37369 CVE-2023-38197  +8 more Upstream summary: In Qt 5.9.x through 5.15.x before 5.15.9 and 6.x before 6.2.4 on Linux and UNIX, QProcess […]

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Debian 13 — libcgi-session-perl — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — libcgi-session-perl — 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-2006-1279 CVE-2006-1280 Upstream summary: CGI::Session 4.03-1 allows local users to overwrite arbitrary files via a symlink attack on temporary files used by (1) Driver::File, (2) Driver::db_file, and possibly […]

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Debian 12 — sup-mail — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — sup-mail — multiple vulnerabilities (2 CVEs) — 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-2013-4478 CVE-2013-4479 Upstream summary: Sup before 0.13.2.1 and 0.14.x before 0.14.1.1 allows remote attackers to execute arbitrary commands via shell metacharacters in the filename of an email attachment. […]

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Debian 9 — policykit-1 — vulnerability — patch and remediation guide — diagnosis and fix on Debian 9

Debian 9 — policykit-1 — 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-2018-19788 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 — poetry-core — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — poetry-core — 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-2022-36069 Upstream summary: Poetry is a dependency manager for Python. When handling dependencies that come from a Git repository instead of a registry, Poetry uses various commands, such […]

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

Debian 11 — opencolorio — 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-2025-15506 Upstream summary: A vulnerability was found in AcademySoftwareFoundation OpenColorIO up to 2.5.0. This issue affects the function ConvertToRegularExpression of the file src/OpenColorIO/FileRules.cpp. Performing a manipulation results in […]

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