Logging Monitoring

Common Problems 112402

Windows Server 2019 – LSASS high CPU and authentication slowdowns – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 3 August 2022 Affected versions: Windows Server 2019 📖 ~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 […]

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FreeBSD 13 — mod_jk — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — mod_jk — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 3 August 2022 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: mod_jk — information disclosure Related CVEs: CVE-2007-0774 CVE-2007-1860 Upstream summary: Kazu Nambo reports: URL decoding the Apache webserver prior to decoding in the Tomcat server could pypass access control rules […]

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AlmaLinux 8 — libffi — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — libffi — 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-2022:2054 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 […]

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Debian 11 — nsd — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — nsd — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 3 August 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2009-1755 CVE-2016-6173 CVE-2019-13207 CVE-2020-28935 Upstream summary: Off-by-one error in the packet_read_query_section function in packet.c in nsd 3.2.1, and process_query_section in query.c in nsd 2.3.7, allows remote attackers to […]

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openSUSE Tumbleweed — libvirglrenderer1 — multiple vulnerabilities (15 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — libvirglrenderer1 — multiple vulnerabilities (15 CVEs) — 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-2022:0479-1 (see also SUSE bugzilla) Related CVEs: CVE-2022-0135 CVE-2019-18389 CVE-2019-18391 CVE-2022-0175 CVE-2016-10214 CVE-2017-5937 CVE-2017-5957 CVE-2019-18388  +7 more Upstream summary: An out-of-bounds write issue was found in the VirGL virtual OpenGL renderer (virglrenderer). […]

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Debian 11 — latd — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — latd — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 3 August 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2013-0251 Upstream summary: Stack-based buffer overflow in llogincircuit.cc in latd 1.25 through 1.30 and earlier allows remote attackers to cause a denial of service (crash) and possibly execute […]

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How to Install Go 1.21 on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Install Go 1.21 on Debian 11

Introduction This guide explains how to Install Go 1.21 on Debian 11 on Debian 11 Bullseye. Debian Bullseye 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 11 install with the standard […]

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Oracle Linux 8 — virt:ol and virt-devel:ol security, bug fix, and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — virt:ol and virt-devel:ol security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2021-4191)

🟡 Medium   ⏱ 10–30 min  Last verified: 2 August 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-4191 Related CVEs: CVE-2020-15859 CVE-2021-3592 CVE-2021-3593 CVE-2021-3594 CVE-2021-3595 CVE-2021-3631 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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