Security Hardening

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

Debian 12 — shellinabox — 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-2015-8400 CVE-2018-16789 Upstream summary: The HTTPS fallback implementation in Shell In A Box (aka shellinabox) before 2.19 makes it easier for remote attackers to conduct DNS rebinding attacks […]

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

Debian 11 — libblockdev — 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-2025-6019 Upstream summary: A Local Privilege Escalation (LPE) vulnerability was found in libblockdev. Generally, the "allow_active" setting in Polkit permits a physically present user to take certain actions […]

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

Debian 11 — flamethrower — 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-2008-5141 Upstream summary: flamethrower in flamethrower 0.1.8 allows local users to overwrite arbitrary files via a symlink attack on a /tmp/multicast.tar.##### temporary file. Table of contents Symptom & […]

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Debian 12 — grunt — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — grunt — multiple vulnerabilities (3 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-2020-7729 CVE-2022-0436 CVE-2022-1537 Upstream summary: The package grunt before 1.3.0 are vulnerable to Arbitrary Code Execution due to the default usage of the function load() instead of its […]

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

Debian 12 — pam — 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-2002-1227 CVE-2005-2977 CVE-2009-0579 CVE-2009-0887 CVE-2009-3232 CVE-2010-3316 CVE-2010-3430 CVE-2010-3431  +12 more Upstream summary: PAM 0.76 treats a disabled password as if it were an empty (null) password, which allows […]

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

Debian 13 — org-mode — 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-2023-28617 CVE-2024-30202 CVE-2024-30203 CVE-2024-30204 CVE-2024-30205 CVE-2024-39331 Upstream summary: org-babel-execute:latex in ob-latex.el in Org Mode through 9.6.1 for GNU Emacs allows attackers to execute arbitrary commands via a file […]

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Debian 13 — markdown-it-py — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — markdown-it-py — 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-2023-26302 CVE-2023-26303 Upstream summary: Denial of service could be caused to the command line interface of markdown-it-py, before v2.2.0, if an attacker was allowed to use invalid UTF-8 […]

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

Debian 13 — nodau — 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-2022-4399 Upstream summary: A vulnerability was found in TicklishHoneyBee nodau. It has been rated as critical. Affected by this issue is some unknown functionality of the file src/db.c. The […]

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

Debian 13 — cinder — multiple vulnerabilities (13 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-2013-1068 CVE-2013-1664 CVE-2013-4183 CVE-2013-4202 CVE-2014-3641 CVE-2014-7230 CVE-2015-1851 CVE-2015-5162  +5 more Upstream summary: The OpenStack Nova (python-nova) package 1:2013.2.3-0 before 1:2013.2.3-0ubuntu1.2 and 1:2014.1-0 before 1:2014.1-0ubuntu1.2 and Openstack Cinder (python-cinder) […]

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Debian 12 — waitress — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — waitress — multiple vulnerabilities (8 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-2019-16785 CVE-2019-16786 CVE-2019-16789 CVE-2019-16792 CVE-2022-24761 CVE-2022-31015 CVE-2024-49768 CVE-2024-49769 Upstream summary: Waitress through version 1.3.1 implemented a "MAY" part of the RFC7230 which states: "Although the line terminator for […]

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