Operations

FreeBSD 13 — graphviz — security advisory — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — graphviz — security advisory — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 20 September 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: graphviz — format string vulnerability Upstream summary: Joshua Rogers reports: A format string vulnerability has been found in `graphviz'. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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How to Configure ZFS Snapshots and Rollback on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Configure ZFS Snapshots and Rollback on FreeBSD 13

Introduction How to Configure ZFS Snapshots and Rollback on FreeBSD 13 is a core administration task for any FreeBSD 13 server operator. FreeBSD 13 ships with the 15.0-RELEASE kernel, ZFS as the default root filesystem, Capsicum capability sandboxing improvements, and an updated ports tree. Unlike Linux distributions, FreeBSD uses rc(8) for service management, pf for […]

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Debian 11 — cherrypy3 — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — cherrypy3 — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 20 September 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2008-0252 Upstream summary: Directory traversal vulnerability in the _get_file_path function in (1) lib/sessions.py in CherryPy 3.0.x up to 3.0.2, (2) filter/sessionfilter.py in CherryPy 2.1, and (3) filter/sessionfilter.py in […]

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Debian 11 — libquicktime — multiple vulnerabilities (10 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — libquicktime — multiple vulnerabilities (10 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 20 September 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2016-2399 CVE-2017-12143 CVE-2017-12145 CVE-2017-9122 CVE-2017-9123 CVE-2017-9124 CVE-2017-9125 CVE-2017-9126  +2 more Upstream summary: Integer overflow in the quicktime_read_pascal function in libquicktime 1.2.4 and earlier allows remote attackers to cause […]

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AlmaLinux 8 — jansson — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — jansson — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALBA-2022:2061 Upstream summary: For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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

Debian 11 — freeplane — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 20 September 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2018-1000069 Upstream summary: FreePlane version 1.5.9 and earlier contains a XML External Entity (XXE) vulnerability in XML Parser in mindmap loader that can result in stealing data from […]

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

Debian 11 — ziproxy — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 20 September 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2009-0804 CVE-2010-1513 CVE-2010-2350 Upstream summary: Ziproxy 2.6.0, when transparent interception mode is enabled, uses the HTTP Host header to determine the remote endpoint, which allows remote attackers to […]

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Debian 11 — kgb-bot — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — kgb-bot — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 20 September 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2015-1554 Upstream summary: kgb-bot 1.33-2 allows remote attackers to cause a denial of service (crash). Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick […]

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How to Automate Debian 9 Server Provisioning with Ansible — step-by-step Debian 9 tutorial on Progressive Robot

How to Automate Debian 9 Server Provisioning with Ansible

Introduction Debian 9 Stretch is built around the ethos of stability and free software. Setting up automate debian 9 server provisioning with ansible on Stretch leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Stretch freeze. Follow each step carefully and […]

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Ubuntu 20.04 — pdfresurrect — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — pdfresurrect — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 20 September 2021 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5282-1 Related CVEs: CVE-2019-14267 CVE-2019-14934 CVE-2020-20740 CVE-2020-9549 CVE-2021-3508 Upstream summary: It was discovered that PDFResurrect was incorrectly handling corrupted PDF files. An attacker could possibly use this issue to cause […]

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