Security Hardening

Debian 12 — powerpc-utils — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — powerpc-utils — 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-2014-4040 Upstream summary: snap in powerpc-utils 1.2.20 produces an archive with fstab and yaboot.conf files potentially containing cleartext passwords, and lacks a warning about reviewing this archive to […]

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

Debian 11 — lmdb — 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-2026-22185 Upstream summary: OpenLDAP Lightning Memory-Mapped Database (LMDB) versions up to and including 0.9.14, prior to commit 8e1fda8, contain a heap buffer underflow in the readline() function of […]

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Debian 11 — libnet-server-perl — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — libnet-server-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-2005-1127 CVE-2013-1841 Upstream summary: Format string vulnerability in the log function in Net::Server 0.87 and earlier, as used in Postfix Greylisting Policy Server (Postgrey) 1.18 and earlier, and […]

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Debian 11 — rust-crossbeam-utils — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — rust-crossbeam-utils — 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-2022-23639 Upstream summary: crossbeam-utils provides atomics, synchronization primitives, scoped threads, and other utilities for concurrent programming in Rust. crossbeam-utils prior to version 0.8.7 incorrectly assumed that the alignment […]

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Debian 13 — libtorrent-rasterbar — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — libtorrent-rasterbar — multiple vulnerabilities (5 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-2009-1760 CVE-2015-5685 CVE-2016-5301 CVE-2016-7164 CVE-2017-9847 Upstream summary: Directory traversal vulnerability in src/torrent_info.cpp in Rasterbar libtorrent before 0.14.4, as used in firetorrent, qBittorrent, deluge Torrent, and other applications, allows […]

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

Debian 12 — efibootguard — 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-2023-39950 Upstream summary: efibootguard is a simple UEFI boot loader with support for safely switching between current and updated partition sets. Insufficient or missing validation and sanitization of […]

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Debian 12 — libimage-exiftool-perl — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — libimage-exiftool-perl — 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-2021-22204 CVE-2022-23935 Upstream summary: Improper neutralization of user data in the DjVu file format in ExifTool versions 7.44 and up allows arbitrary code execution when parsing the malicious […]

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

Debian 13 — libvncserver — 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-2006-2450 CVE-2014-6051 CVE-2014-6052 CVE-2014-6053 CVE-2014-6054 CVE-2014-6055 CVE-2016-9941 CVE-2016-9942  +12 more Upstream summary: auth.c in LibVNCServer 0.7.1 allows remote attackers to bypass authentication via a request in which the […]

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

Debian 11 — liboping — 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-2009-3614 Upstream summary: liboping 1.3.2 allows users reading arbitrary files upon the local system. Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage […]

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