Security Hardening

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

Debian 11 — apscheduler — 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-2026-31072 Upstream summary: The JSONSerializer and CBORSerializer in APScheduler (all versions including 3.10.x and 4.0.0a5) are vulnerable to Remote Code Execution (RCE) via Insecure Deserialization. The unmarshal_object function […]

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

Debian 12 — mycli — 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-2023-44690 Upstream summary: Inadequate encryption strength in mycli 1.27.0 allows attackers to view sensitive information via /mycli/config.py Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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Debian 13 — libjackson-json-java — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — libjackson-json-java — 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-2017-15095 CVE-2017-7525 CVE-2019-10172 Upstream summary: A deserialization flaw was discovered in the jackson-databind in versions before 2.8.10 and 2.9.1, which could allow an unauthenticated user to perform code […]

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

Debian 12 — ltsp — 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-2008-1293 Upstream summary: ldm in Linux Terminal Server Project (LTSP) 0.99 and 2 passes the -ac option to the X server on each LTSP client, which allows remote […]

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Debian 13 — lz4-java — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — lz4-java — 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-2025-12183 CVE-2025-66566 Upstream summary: Out-of-bounds memory operations in org.lz4:lz4-java 1.8.0 and earlier allow remote attackers to cause denial of service and read adjacent memory via untrusted compressed input. […]

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

Debian 11 — u-boot — 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-2017-3225 CVE-2017-3226 CVE-2018-1000205 CVE-2018-18439 CVE-2018-18440 CVE-2018-3968 CVE-2019-11059 CVE-2019-11690  +12 more Upstream summary: Das U-Boot is a device bootloader that can read its configuration from an AES encrypted file. […]

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

Debian 13 — blender — 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-2005-3151 CVE-2005-3302 CVE-2005-4470 CVE-2007-1253 CVE-2008-1102 CVE-2008-1103 CVE-2008-4863 CVE-2009-3850  +12 more Upstream summary: Buffer overflow in blenderplay in Blender Player 2.37a allows attackers to execute arbitrary code via a […]

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Debian 11 — parser-mysql — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — parser-mysql — 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-2009-3736 Upstream summary: ltdl.c in libltdl in GNU Libtool 1.5.x, and 2.2.6 before 2.2.6b, as used in Ham Radio Control Libraries, Q, and possibly other products, attempts to […]

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Debian 13 — yaws — multiple vulnerabilities (9 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — yaws — multiple vulnerabilities (9 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-2005-2008 CVE-2009-0751 CVE-2009-4495 CVE-2011-4350 CVE-2011-5025 CVE-2016-1000108 CVE-2017-10974 CVE-2020-24379  +1 more Upstream summary: Yaws Webserver 1.55 and earlier allows remote attackers to obtain the source code for yaws scripts […]

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

Debian 13 — proftpd-dfsg — 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-2005-4816 CVE-2006-5815 CVE-2006-6170 CVE-2006-6171 CVE-2006-6563 CVE-2007-2165 CVE-2008-4242 CVE-2008-7265  +12 more Upstream summary: Buffer overflow in mod_radius in ProFTPD before 1.3.0rc2 allows remote attackers to cause a denial of […]

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