Linux

SLES 12 — bubblewrap — vulnerability — patch and remediation guide — diagnosis and fix on SLES 12

SLES 12 — bubblewrap — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 4 April 2020 Affected versions: SLES 12 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2019:1826-1 (see also SUSE bugzilla) Related CVEs: CVE-2019-12439 Upstream summary: bubblewrap.c in Bubblewrap before 0.3.3 misuses temporary directories in /tmp as a mount point. In some particular configurations (related to XDG_RUNTIME_DIR), a […]

Read more
How to Install containerd as a Container Runtime on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Install containerd as a Container Runtime on RHEL 7

How to Install containerd as a Container Runtime on RHEL 7 containerd is a high-performance, industry-standard container runtime that serves as the foundation beneath both Docker and Kubernetes. When Kubernetes deprecated the Dockershim in version 1.20 and removed it in version 1.24, containerd became the most widely adopted direct container runtime for Kubernetes clusters. Installing […]

Read more
openSUSE Tumbleweed — librttopo1 — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — librttopo1 — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2022:10042-1 (see also SUSE bugzilla) Related CVEs: CVE-2017-18359 Upstream summary: PostGIS 2.x before 2.3.3, as used with PostgreSQL, allows remote attackers to cause a denial of service via crafted ST_AsX3D function input, […]

Read more
Common Problems 119046

Ubuntu 14.04 LTS – cron jobs stop running after environment changes – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 3 April 2020 Affected versions: Ubuntu 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
How to Install Portainer on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Install Portainer on Debian 10

Introduction This guide explains how to Install Portainer on Debian 10 on Debian 10 Buster. Debian Buster uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 10 install with the standard repositories […]

Read more
Alpine Linux edge — sddm — vulnerability — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — sddm — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 0.19.0-r0 📖 ~4 min read  •  Source: Alpine secdb entry — sddm 0.19.0-r0 Related CVEs: CVE-2020-28049 Upstream summary: Alpine community repository for vedge ships sddm 0.19.0-r0 which addresses CVE-2020-28049. Table of contents Symptom & Impact Environment […]

Read more
Common Problems 115558

RHEL 7 Yum Dependency Resolution Fails After EPEL Add

🟡 Medium   ⏱ 5–30 min  Last verified: 3 April 2020 📖 ~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 […]

Read more
Common Problems 114981

RHEL 8 LVM Thin Pool Full Triggering Read-Only Behavior

🟡 Medium   ⏱ 5–30 min  Last verified: 3 April 2020 📖 ~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 […]

Read more
Ubuntu 16.04 — libxmlrpc3-java — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — libxmlrpc3-java — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 3 April 2020 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4496-1 Related CVEs: CVE-2019-17570 Upstream summary: It was discovered that Apache XML-RPC (aka ws-xmlrpc) does not properly deserialize untrusted data. An attacker could possibly use this issue to execute arbitrary […]

Read more
SLES 12 — libopenssl — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on SLES 12

SLES 12 — libopenssl — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 3 April 2020 Affected versions: SLES 12 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2018:3863-1 (see also SUSE bugzilla) Related CVEs: CVE-2018-0735 CVE-2019-1543 Upstream summary: The OpenSSL ECDSA signature algorithm has been shown to be vulnerable to a timing side channel attack. An attacker could use […]

Read more
CHAT