Security Hardening

Debian 11 — x11vnc — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — x11vnc — 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-2020-29074 Upstream summary: scan.c in x11vnc 0.9.16 uses IPC_CREAT|0777 in shmget calls, which allows access by actors other than the current user. Table of contents Symptom & Impact […]

Read more
Debian 11 — libzstd — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — libzstd — multiple vulnerabilities (4 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-2019-11922 CVE-2021-24031 CVE-2021-24032 CVE-2022-4899 Upstream summary: A race condition in the one-pass compression functions of Zstandard prior to version 1.3.8 could allow an attacker to write bytes out […]

Read more
Debian 11 — django-allauth — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — django-allauth — 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-2025-65430 CVE-2025-65431 CVE-2026-27982 Upstream summary: An issue was discovered in allauth-django before 65.13.0. IdP: marking a user as is_active=False after having handed tokens for that user while the […]

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

Debian 13 — libebml — 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-2015-8789 CVE-2015-8790 CVE-2015-8791 CVE-2019-13615 CVE-2021-3405 CVE-2023-52339 Upstream summary: Use-after-free vulnerability in the EbmlMaster::Read function in libEBML before 1.3.3 allows context-dependent attackers to have unspecified impact via a "deeply […]

Read more
Debian 13 — pimd — vulnerability — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — pimd — vulnerability — 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-2011-0007 Upstream summary: pimd 2.1.5 and possibly earlier versions allows user-assisted local users to overwrite arbitrary files via a symlink attack on (1) pimd.dump when a USR1 signal […]

Read more
Debian 13 — node-ajv — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — node-ajv — multiple vulnerabilities (4 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-2020-15366 CVE-2025-69873 CVE-2026-6321 CVE-2026-6322 Upstream summary: An issue was discovered in ajv.validate() in Ajv (aka Another JSON Schema Validator) 6.12.2. A carefully crafted JSON schema could be provided […]

Read more
Debian 13 — game-music-emu — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — game-music-emu — 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-2016-9957 CVE-2016-9958 CVE-2016-9959 CVE-2016-9960 CVE-2016-9961 CVE-2017-17446 Upstream summary: Stack-based buffer overflow in game-music-emu before 0.6.1. Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick […]

Read more
Debian 13 — iwd — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — iwd — multiple vulnerabilities (4 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-2020-17497 CVE-2020-8689 CVE-2023-52161 CVE-2024-28084 Upstream summary: eapol.c in iNet wireless daemon (IWD) through 1.8 allows attackers to trigger a PTK reinstallation by retransmitting EAPOL Msg4/4. Table of contents […]

Read more
Debian 13 — libkiwix — vulnerability — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — libkiwix — 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-2022-27920 Upstream summary: libkiwix 10.0.0 and 10.0.1 allows XSS in the built-in webserver functionality via the search suggestions URL parameter. This is fixed in 10.1.0. Table of contents Symptom […]

Read more
CHAT