Operations

Debian 11 — fex — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — fex — multiple vulnerabilities (7 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 31 March 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2011-1409 CVE-2012-0869 CVE-2012-1293 CVE-2014-3875 CVE-2014-3876 CVE-2014-3877 CVE-2020-15591 Upstream summary: Frams's Fast File EXchange (F*EX, aka fex) 20100208, and possibly other versions before 20110610, allows remote attackers to bypass […]

Read more
How to Set Up Terraform on SLES 15 — step-by-step SUSE Linux Enterprise 15 tutorial on Progressive Robot

How to Set Up Terraform on SLES 15

Introduction This tutorial covers How to Set Up Terraform on SLES 15 on SLES 15. SLES 15 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Prerequisites Ensure your SLES 15 system is up to date: zypper refresh […]

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

Debian 11 — cecilia — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 31 March 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2008-1832 Upstream summary: lib/prefs.tcl in Cecilia 2.0.5 allows local users to overwrite arbitrary files via a symlink attack on the csvers temporary file. Table of contents Symptom & […]

Read more
Debian 11 — runc — multiple vulnerabilities (16 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — runc — multiple vulnerabilities (16 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 31 March 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2016-3697 CVE-2016-9962 CVE-2019-16884 CVE-2019-19921 CVE-2019-5736 CVE-2021-30465 CVE-2021-43784 CVE-2022-29162  +8 more Upstream summary: libcontainer/user/user.go in runC before 0.1.0, as used in Docker before 1.11.2, improperly treats a numeric UID […]

Read more
Debian 11 — netplan.io — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — netplan.io — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 31 March 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2022-4968 Upstream summary: netplan leaks the private key of wireguard to local users. Versions after 1.0 are not affected. Table of contents Symptom & Impact Environment & Reproduction […]

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

AlmaLinux 8 — libevdev — 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-2021:4219 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 — lz4 — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — lz4 — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 31 March 2022 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4968-1 Related CVEs: CVE-2021-3520 Upstream summary: It was discovered that LZ4 incorrectly handled certain memory operations. If a user or automated system were tricked into uncompressing a specially- crafted LZ4 […]

Read more
How to Configure OpenTelemetry Collector on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Configure OpenTelemetry Collector on Debian 11

Introduction Deploying configure opentelemetry collector 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 […]

Read more
Ubuntu 18.04 — usbredir — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — usbredir — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 31 March 2022 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5784-1 Related CVEs: CVE-2021-3700 Upstream summary: It was discovered that usbredir incorrectly handled memory when serializing large amounts of data in the case of a slow or blocked destination. An […]

Read more
Oracle Linux 8 — vim — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — vim — vulnerability — patch and remediation guide (ELSA-2022-5813)

🟡 Medium   ⏱ 10–30 min  Last verified: 31 March 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-5813 Related CVEs: CVE-2022-1785 CVE-2022-1927 CVE-2022-1897 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification […]

Read more
CHAT