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openSUSE Tumbleweed — fail2ban — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — fail2ban — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE security advisory (see also SUSE bugzilla) Related CVEs: CVE-2009-5023 CVE-2013-2178 CVE-2013-7176 CVE-2013-7177 CVE-2021-32749 Upstream summary: The (1) dshield.conf, (2) mail-buffered.conf, (3) mynetwatchman.conf, and (4) mynetwatchman.conf actions in action.d/ in Fail2ban before 0.8.5 allows […]

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Debian 11 — node-glob-parent — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — node-glob-parent — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 28 May 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2020-28469 CVE-2021-35065 Upstream summary: This affects the package glob-parent before 5.1.2. The enclosure regex used to check for strings ending in enclosure containing path separator. Table of contents […]

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

Debian 11 — libuev — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 28 May 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2022-48620 Upstream summary: uev (aka libuev) before 2.4.1 has a buffer overflow in epoll_wait if maxevents is a large number. Table of contents Symptom & Impact Environment & […]

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Amazon Linux 2 — php-pear — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — php-pear — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2-2021-1602 Related CVEs: CVE-2020-36193 CVE-2021-32610 CVE-2020-28948 CVE-2020-28949 CVE-2018-1000888 Upstream summary: Tar.php in Archive_Tar through 1.4.11 allows write operations with Directory Traversal due to inadequate checking of symbolic links. (CVE-2020-36193) Table […]

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How to Install Zabbix Server on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Install Zabbix Server on Debian 11

Introduction Deploying install zabbix server on debian 11 on a Debian 11 Bullseye machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites Ensure Debian 11 […]

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Debian 11 — ibus-pinyin — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — ibus-pinyin — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 28 May 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2013-4509 Upstream summary: The default configuration of IBUS 1.5.4, and possibly 1.5.2 and earlier, when IBus.InputPurpose.PASSWORD is not set and used with GNOME 3, does not obscure the […]

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Debian 11 — libfsntfs — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — libfsntfs — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 28 May 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2018-11727 CVE-2018-11728 CVE-2018-11729 CVE-2018-11730 CVE-2018-11731 Upstream summary: The libfsntfs_attribute_read_from_mft function in libfsntfs_attribute.c in libfsntfs through 2018-04-20 allows remote attackers to cause an information disclosure (heap-based buffer over-read) via […]

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Ubuntu 14.04 — tmux — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — tmux — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 28 May 2022 Affected versions: Ubuntu 14.04 (trusty) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5843-1 Related CVEs: CVE-2022-47016 Upstream summary: It was discovered that tmux incorrectly handled certain inputs. An attacker could possibly use this issue to cause a denial of service. Table of […]

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Oracle Linux 8 — java-11-openjdk — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — java-11-openjdk — vulnerability — patch and remediation guide (ELSA-2021-2781)

🟠 High   ⏱ 15–60 min  Last verified: 28 May 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-2781 Related CVEs: CVE-2021-2388 CVE-2021-2341 CVE-2021-2369 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification […]

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