Linux

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

openSUSE Tumbleweed — zabbix-agent — multiple vulnerabilities (5 CVEs) — patch and remediation guide

  • September 1, 2022
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2022:0036-1 (see also SUSE bugzilla) Related CVEs: CVE-2021-27927 CVE-2022-35230 CVE-2022-24349 CVE-2020-15803 CVE-2022-23134 Upstream summary: In Zabbix from 4.0.x before 4.0.28rc1, 5.0.0alpha1 before 5.0.10rc1, 5.2.x before 5.2.6rc1, and 5.4.0alpha1 before 5.4.0beta2, the CControllerAuthenticationUpdate […]

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Debian 11 — geneweb — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — geneweb — multiple vulnerabilities (2 CVEs) — patch and remediation guide

  • September 1, 2022
  • Linux
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🟢 Low   ⏱ 5–15 min  Last verified: 1 September 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2002-1390 CVE-2005-0391 Upstream summary: The daemon for GeneWeb before 4.09 does not properly handle requested paths, which allows remote attackers to read arbitrary files via a crafted URL. […]

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How To Install CouchDB From Source on an Ubuntu 13.04 x64 VPS — step-by-step Linux tutorial on Progressive Robot

How To Install CouchDB From Source on an Ubuntu 13.04 x64 VPS

  • September 1, 2022
  • Linux
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Apache’s CouchDB is “a database that completely embraces the web.” It is one of a family of NoSQL databases that offers an alternative to the rigid structure of a relational database like MySQL. Breeze through this tutorial and learn how to install CouchDB from source on an Ubuntu 13.03 VPS.

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openSUSE Tumbleweed — telnet — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — telnet — vulnerability — patch and remediation guide

  • September 1, 2022
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2022:3471-1 (see also SUSE bugzilla) Related CVEs: CVE-2022-39028 Upstream summary: telnetd in GNU Inetutils through 2.3, MIT krb5-appl through 1.0.3, and derivative works has a NULL pointer dereference via 0xff 0xf7 or […]

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Common Problems 114533

RHEL 9 OpenSSH key authentication denied unexpectedly

  • September 1, 2022
  • Linux
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🟡 Medium   ⏱ 5–30 min  Last verified: 1 September 2022 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention & Hardening Related Errors & Cross-Refs References & Further […]

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

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

  • September 1, 2022
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 1 September 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2016-3178 CVE-2016-3179 CVE-2019-12106 Upstream summary: The processRequest function in minissdpd.c in MiniSSDPd 1.2.20130907-3 allows local users to cause a denial of service (out-of-bounds memory access and daemon crash) […]

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Ubuntu 22.04 — maven-shared-utils — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — maven-shared-utils — vulnerability — patch and remediation guide

  • September 1, 2022
  • Linux
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🟢 Low   ⏱ 5–15 min  Last verified: 1 September 2022 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6730-1 Related CVEs: CVE-2022-29599 Upstream summary: It was discovered that Apache Maven Shared Utils did not handle double-quoted strings properly, allowing shell injection attacks. This could allow an attacker to […]

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Ubuntu 22.04 — knot-resolver — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — knot-resolver — vulnerability — patch and remediation guide

  • September 1, 2022
  • Linux
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🟢 Low   ⏱ 5–15 min  Last verified: 1 September 2022 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6225-1 Related CVEs: CVE-2022-40188 Upstream summary: It was discovered that Knot Resolver did not correctly handle certain client options. A remote attacker could send requests to malicous domains and cause […]

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openSUSE Tumbleweed — libpixman — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — libpixman — vulnerability — patch and remediation guide

  • September 1, 2022
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2022:4148-1 (see also SUSE bugzilla) Related CVEs: CVE-2022-44638 Upstream summary: In libpixman in Pixman before 0.42.2, there is an out-of-bounds write (aka heap-based buffer overflow) in rasterize_edges_8 due to an integer overflow […]

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How to Install and Configure Varnish Cache on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Install and Configure Varnish Cache on Debian 11

  • September 1, 2022
  • Linux
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Introduction How to Install and Configure Varnish Cache on Debian 11 is a fundamental operation for any administrator maintaining a Debian 11 Bullseye server. Debian 11 Bullseye ships with the Linux 6.12 kernel, updated toolchains, and a fully refreshed package archive — meaning version numbers, configuration file paths, and some dependency chains differ from Debian […]

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