Logging Monitoring

How to Tune Asynchronous I/O on IBM AIX 7.2 — step-by-step IBM AIX 7.2 tutorial on Progressive Robot

How to Tune Asynchronous I/O on IBM AIX 7.2

Introduction IBM AIX 7.2 is the latest release of IBM’s enterprise-grade UNIX operating system, running on IBM Power Systems hardware. Known for its reliability, security, and performance in mission-critical environments, AIX 7.2 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to tune asynchronous i/o on ibm aix 7.2 on IBM […]

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FreeBSD 13 — zeek — security advisory — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — zeek — security advisory — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 4 December 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: zeek — potential DoS vulnerability Upstream summary: Wojtulewicz of Corelight reports: A specially-crafted series of MIME headers sent via SMTP or HTTP could cause Zeek to use large amounts of […]

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Debian 11 — tmate-ssh-server — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — tmate-ssh-server — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 4 December 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2021-44512 CVE-2021-44513 Upstream summary: World-writable permissions on the /tmp/tmate/sessions directory in tmate-ssh-server 2.3.0 allow a local attacker to compromise the integrity of session handling, or obtain the read-write […]

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Debian 11 — imlib2 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — imlib2 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 4 December 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2004-0802 CVE-2004-1026 CVE-2006-4806 CVE-2006-4807 CVE-2006-4808 CVE-2006-4809 CVE-2008-2426 CVE-2008-5187  +12 more Upstream summary: Buffer overflow in the BMP loader in imlib2 before 1.1.2 allows remote attackers to execute arbitrary […]

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How to Use zrepl for ZFS Replication on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Use zrepl for ZFS Replication on FreeBSD 13

Introduction FreeBSD 13 is a UNIX-derived operating system renowned for its network stack performance, ZFS integration, and Jail isolation primitives. Setting up use zrepl for zfs replication on freebsd 13 on FreeBSD 13 follows the rc.conf/service(8) paradigm rather than systemd, which means enabling a service and configuring its startup options are done differently from any […]

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

Debian 11 — checkpw — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 4 December 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2015-0885 Upstream summary: checkpw 1.02 and earlier allows remote attackers to cause a denial of service (infinite loop) via a — (dash dash) in a username. Table of […]

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Ubuntu 20.04 — libxml-security-java — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — libxml-security-java — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 4 December 2021 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5525-1 Related CVEs: CVE-2021-40690 Upstream summary: It was discovered that Apache XML Security for Java incorrectly passed a configuration property when creating specific key elements. This allows an attacker to […]

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Oracle Linux 8 — llvm-toolset:ol8 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — llvm-toolset:ol8 — vulnerability — patch and remediation guide (ELSA-2021-4743)

🟡 Medium   ⏱ 10–30 min  Last verified: 4 December 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-4743 Related CVEs: CVE-2021-42574 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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FreeBSD 13 — py36-gunicorn — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — py36-gunicorn — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 3 December 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: py-gunicorn — CWE-113 vulnerability Related CVEs: CVE-2018-1000164 Upstream summary: Everardo reports: gunicorn version 19.4.5 contains a CWE-113: Improper Neutralization of CRLF Sequences in HTTP Headers vulnerability in process_headers function in […]

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FreeBSD 13 — mariadb-client — multiple vulnerabilities (11 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — mariadb-client — multiple vulnerabilities (11 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 3 December 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: MySQL – Multiple vulnerabilities Related CVEs: CVE-2015-4792 CVE-2015-4802 CVE-2015-4807 CVE-2015-4815 CVE-2015-4826 CVE-2015-4830 CVE-2015-4836 CVE-2015-4858  +3 more Upstream summary: Oracle reports: Critical Patch Update: MySQL Server, version(s) 5.5.45 and prior, 5.6.26 […]

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