Security Hardening

Debian 11 — pyjwt — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — pyjwt — multiple vulnerabilities (3 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-2017-11424 CVE-2025-45768 CVE-2026-32597 Upstream summary: In PyJWT 1.5.0 and below the `invalid_strings` check in `HMACAlgorithm.prepare_key` does not account for all PEM encoded public keys. Specifically, the PKCS1 PEM […]

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Debian 13 — php-league-commonmark — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — php-league-commonmark — multiple vulnerabilities (3 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-2025-46734 CVE-2026-30838 CVE-2026-33347 Upstream summary: league/commonmark is a PHP Markdown parser. A cross-site scripting (XSS) vulnerability in the Attributes extension of the league/commonmark library (versions 1.5.0 through 2.6.x) […]

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

Debian 12 — opensysusers — 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-2021-40084 Upstream summary: opensysusers through 0.6 does not safely use eval on files in sysusers.d that may contain shell metacharacters. For example, it allows command execution via a […]

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

Debian 12 — pmount — 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-2010-2192 Upstream summary: The make_lockdir_name function in policy.c in pmount 0.9.18 allow local users to overwrite arbitrary files via a symlink attack on a file in /var/lock/. Table […]

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

Debian 13 — fastapi — 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-2021-32677 Upstream summary: FastAPI is a web framework for building APIs with Python 3.6+ based on standard Python type hints. FastAPI versions lower than 0.65.2 that used cookies for […]

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Debian 11 — libapache-mod-auth-radius — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — libapache-mod-auth-radius — 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-2005-0108 Upstream summary: Apache mod_auth_radius 1.5.4 and libpam-radius-auth allow remote malicious RADIUS servers to cause a denial of service (crash) via a RADIUS_REPLY_MESSAGE with a RADIUS attribute length […]

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Debian 12 — msgpack-java — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — msgpack-java — 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-2026-21452 Upstream summary: MessagePack for Java is a serializer implementation for Java. A denial-of-service vulnerability exists in versions prior to 0.9.11 when deserializing .msgpack files containing EXT32 objects […]

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Debian 13 — rustc — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — rustc — multiple vulnerabilities (20 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-2015-20001 CVE-2017-20004 CVE-2018-1000622 CVE-2018-1000657 CVE-2018-1000810 CVE-2018-25008 CVE-2019-1010299 CVE-2020-36317  +12 more Upstream summary: In the standard library in Rust before 1.2.0, BinaryHeap is not panic-safe. The binary heap is […]

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

Debian 11 — lsyncd — 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-2014-8990 Upstream summary: default-rsyncssh.lua in Lsyncd 2.1.5 and earlier allows remote attackers to execute arbitrary commands via shell metacharacters in a filename. Table of contents Symptom & Impact […]

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