🟡 Medium ⏱ 10–30 min Last verified: 10 May 2024 Affected versions: Oracle Linux 9 📖 ~4 min read • Source: ELSA advisory ELSA-2024-9331 Related CVEs: CVE-2024-26458 CVE-2024-26461 CVE-2024-26462 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification […]
🟡 Medium ⏱ 5–30 min Last verified: 7 May 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 […]
🟠 High ⏱ 15–60 min Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 1.20.3-r0 📖 ~4 min read • Source: Alpine secdb entry — krb5 1.20.3-r0 Related CVEs: CVE-2024-37370 CVE-2024-37371 CVE-2022-42898 CVE-2021-37750 CVE-2021-36222 CVE-2020-28196 CVE-2018-20217 CVE-2017-15088 +2 more Upstream summary: Alpine main repository for vedge ships krb5 1.20.3-r0 which […]
Log files are the primary diagnostic tool for server administrators — but without rotation they become a problem in their own right. An unrotated /var/log/nginx/access.log on a busy server can grow to tens of gigabytes within weeks, filling the filesystem, crashing the logging application, and making the log itself unusable because no tool can efficiently […]
🟠 High ⏱ 15–60 min Last verified: 25 May 2026 Affected versions: openSUSE Leap 15.5 📖 ~4 min read • Source: SUSE advisory SUSE-SU-2024:1549-1 (see also SUSE bugzilla) Related CVEs: CVE-2023-3758 Upstream summary: A race condition flaw was found in sssd where the GPO policy is not consistently applied for authenticated users. This may […]
🟡 Medium ⏱ 10–30 min Last verified: 28 April 2024 Affected versions: Oracle Linux 9 📖 ~4 min read • Source: ELSA advisory ELSA-2024-6166 Related CVEs: CVE-2024-37370 CVE-2024-37371 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & […]
iptables has been the standard Linux packet-filtering firewall for over two decades, and while RHEL 9 ships with nftables and firewalld as the preferred tools, iptables remains available and is widely understood by seasoned administrators. Learning iptables gives you deep insight into how Linux netfilter works and is valuable for managing legacy systems or containers […]
🟡 Medium ⏱ 10–30 min Last verified: 20 April 2024 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read • Source: Ubuntu Security Notice USN-6836-1 Related CVEs: CVE-2023-3758 https://launchpad.net/bugs/2023598 CVE-2022-4254 CVE-2018-10852 CVE-2018-16838 CVE-2019-3811 CVE-2021-3621 Upstream summary: It was discovered that SSSD did not always correctly apply the GPO policy for authenticated users, contrary to […]
🟡 Medium ⏱ 5–30 min Last verified: 17 April 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 […]
Graylog is an open-source centralised log management platform that collects, indexes, and analyses log data from across your infrastructure in one place. On RHEL 9, deploying Graylog 5.x gives operations teams powerful search, alerting, and dashboarding capabilities without relying on cloud-based log services. Graylog depends on MongoDB for metadata storage and OpenSearch (or Elasticsearch) for […]
