Linux

Common Problems 119122

Ubuntu 14.04 LTS USB drive mounts read-only unexpectedly

🟢 Low   ⏱ 5–30 min  Last verified: 22 November 2021 Affected versions: 14.04 LTS 📖 ~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 & […]

Read more
Debian 11 — libcompface — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — libcompface — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 22 November 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2009-2286 Upstream summary: Buffer overflow in compface 1.5.2 and earlier allows user-assisted attackers to cause a denial of service (crash) via a long declaration in a .xbm file. […]

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

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

🟡 Medium   ⏱ 10–30 min  Last verified: 22 November 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2006-4447 CVE-2006-5214 CVE-2006-5215 Upstream summary: X.Org and XFree86, including libX11, xdm, xf86dga, xinit, xload, xtrans, and xterm, does not check the return values for setuid and seteuid calls […]

Read more
How To Set Up nginx Virtual Hosts (Server Blocks) on CentOS 6 — step-by-step Linux tutorial on Progressive Robot

How To Set Up nginx Virtual Hosts (Server Blocks) on CentOS 6

This tutorial shows you how to set up virtual hosts. Virtual Hosts are used to run more than one website or domain off of a single server and IP address. When used with nginx, virtual hosts are called Server Blocks. This tutorial covers setting up server blocks on a Centos server.

Read more
Debian 11 — open-vm-tools — multiple vulnerabilities (17 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — open-vm-tools — multiple vulnerabilities (17 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 22 November 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2009-1142 CVE-2009-1143 CVE-2011-1681 CVE-2011-1787 CVE-2011-2145 CVE-2011-2146 CVE-2013-3237 CVE-2014-4199  +9 more Upstream summary: An issue was discovered in open-vm-tools 2009.03.18-154848. Local users can gain privileges via a symlink attack […]

Read more
How To Install and Secure phpMyAdmin on a CentOS 6.4 VPS — step-by-step Linux tutorial on Progressive Robot

How To Install and Secure phpMyAdmin on a CentOS 6.4 VPS

Database management is important for any site or application that must keep a large amount of information organized. This article will cover how to install phpMyAdmin, a web-based front end to MySQL and MariaDB database management systems, on a CentOS 6.4 VPS.

Read more
Ubuntu 18.04 — libnet-cidr-perl — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — libnet-cidr-perl — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 22 November 2021 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8110-1 Related CVEs: CVE-2021-4456 Upstream summary: Dave Rolsky discovered that Net-CIDR did not properly sanitize IP addresses. An attacker could possibly use this to bypass IP-based restrictions. Table of contents […]

Read more
AlmaLinux 8 — libnumbertext — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — libnumbertext — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALEA-2021:1779 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 […]

Read more
Ubuntu 20.04 — gnome-autoar — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — gnome-autoar — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 22 November 2021 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4937-2 Related CVEs: https://launchpad.net/bugs/1929304 CVE-2021-28650 https://launchpad.net/bugs/1917812 CVE-2020-36241 Upstream summary: USN-4937-1 fixed a vulnerability in GNOME Autoar. The update caused a regression when extracting certain archives. This update fixes the problem. […]

Read more
CHAT