Linux

Common Problems 114522

RHEL 9 DNF Update Fails with GPG Signature Errors

🟡 Medium   ⏱ 5–30 min  Last verified: 24 June 2024 📖 ~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
Debian 12 — ruby-faye-websocket — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — ruby-faye-websocket — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 24 June 2024 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2020-15133 Upstream summary: In faye-websocket before version 0.11.0, there is a lack of certification validation in TLS handshakes. The `Faye::WebSocket::Client` class uses the `EM::Connection#start_tls` method in EventMachine to […]

Read more
openSUSE Leap 15.6 — python311-WebOb — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Leap 15.6

openSUSE Leap 15.6 — python311-WebOb — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Leap 15.6 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2024:2969-1 (see also SUSE bugzilla) Related CVEs: CVE-2024-42353 Upstream summary: WebOb provides objects for HTTP requests and responses. When WebOb normalizes the HTTP Location header to include the request hostname, it […]

Read more
Ubuntu 16.04 — composer — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — composer — multiple vulnerabilities (6 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 24 June 2024 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7603-1 Related CVEs: CVE-2024-35241 CVE-2024-35242 CVE-2024-24821 CVE-2023-43655 CVE-2022-24828 CVE-2021-29472 Upstream summary: Thomas Chauchefoin discovered that Composer did not correctly handle certain arguments. An attacker could possibly use this issue to […]

Read more
CentOS Stream 9 — gnome-shell-extensions — vulnerability — patch and remediation guide — diagnosis and fix on CentOS Stream 9

CentOS Stream 9 — gnome-shell-extensions — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 24 June 2024 Affected versions: CentOS Stream 9 📖 ~4 min read  •  Source: AlmaLinux/RHEL advisory ALSA-2024:9114 Related CVEs: CVE-2024-36472 Upstream summary: GNOME Shell acts as a compositing manager for the desktop, and displays both application windows and other objects. It provides core interface functions like switching […]

Read more
Alpine Linux 3.19 — gd — multiple vulnerabilities (9 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux 3.19

Alpine Linux 3.19 — gd — multiple vulnerabilities (9 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.19 / fixed in 2.3.0-r1 📖 ~4 min read  •  Source: Alpine secdb entry — gd 2.3.0-r1 Related CVEs: CVE-2021-38115 CVE-2021-40145 CVE-2019-11038 CVE-2018-14553 CVE-2017-6363 CVE-2018-5711 CVE-2019-6977 CVE-2019-6978  +1 more Upstream summary: Alpine main repository for vv3.19 ships gd 2.3.0-r1 which […]

Read more
Oracle Linux 8 — edk2 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — edk2 — vulnerability — patch and remediation guide (ELSA-2024-0888)

🟢 Low   ⏱ 5–15 min  Last verified: 24 June 2024 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2024-0888 Related CVEs: CVE-2023-3446 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

Read more
Alpine Linux 3.18 — libidn2 — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux 3.18

Alpine Linux 3.18 — libidn2 — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.18 / fixed in 2.2.0-r0 📖 ~4 min read  •  Source: Alpine secdb entry — libidn2 2.2.0-r0 Related CVEs: CVE-2019-12290 CVE-2019-18224 Upstream summary: Alpine main repository for vv3.18 ships libidn2 2.2.0-r0 which addresses CVE-2019-12290. Table of contents Symptom & Impact […]

Read more
Oracle Linux 9 — thunderbird — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — thunderbird — vulnerability — patch and remediation guide (ELSA-2024-2888)

🟠 High   ⏱ 15–60 min  Last verified: 24 June 2024 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2024-2888 Related CVEs: CVE-2024-4777 CVE-2024-4770 CVE-2024-4367 CVE-2024-4767 CVE-2024-4769 CVE-2024-4768 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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

Oracle Linux 8 — tigervnc — vulnerability — patch and remediation guide (ELSA-2024-9540)

🟠 High   ⏱ 15–60 min  Last verified: 24 June 2024 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2024-9540 Related CVEs: CVE-2024-9632 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

Read more
CHAT