July 2022 - Page 50 of 72

How to Use numa_node_info for NUMA Topology on IBM AIX 7.3 — step-by-step IBM AIX 7.3 tutorial on Progressive Robot

How to Use numa_node_info for NUMA Topology on IBM AIX 7.3

Introduction IBM AIX 7.3 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 7.3 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to use numa_node_info for numa topology on IBM AIX 7.3 […]

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FreeBSD 13 — php71-imap — security advisory — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — php71-imap — security advisory — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: php-imap — imap_open allows to run arbitrary shell commands via mailbox parameter Upstream summary: The PHP team reports: imap_open allows to run arbitrary shell commands via mailbox parameter. Table of […]

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FreeBSD 13 — rubygem19-rdoc — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — rubygem19-rdoc — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: Ruby — XSS exploit of RDoc documentation generated by rdoc Related CVEs: CVE-2013-0256 Upstream summary: Ruby developers report: RDoc documentation generated by rdoc bundled with ruby are vulnerable to an […]

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

Debian 11 — usbredir — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2021-3700 Upstream summary: A use-after-free vulnerability was found in usbredir in versions prior to 0.11.0 in the usbredirparser_serialize() in usbredirparser/usbredirparser.c. This issue occurs when serializing large amounts of […]

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Common Problems 120639

Debian 11 IPv6 Misconfiguration Causes Dual-Stack Outages

🟠 High   ⏱ 5–30 min  Last verified: 20 May 2026 Affected versions: Debian 11 📖 ~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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Debian 11 — uclibc — multiple vulnerabilities (9 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — uclibc — multiple vulnerabilities (9 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2016-2224 CVE-2016-2225 CVE-2016-6264 CVE-2017-9728 CVE-2017-9729 CVE-2021-27419 CVE-2021-43523 CVE-2022-29503  +1 more Upstream summary: The __decode_dotted function in libc/inet/resolv.c in uClibc-ng before 1.0.12 allows remote DNS servers to cause a […]

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Debian 11 — xorg — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — xorg — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2006-5214 CVE-2011-4613 CVE-2012-1093 Upstream summary: Race condition in the Xsession script, as used by X Display Manager (xdm) in NetBSD before 20060212, X.Org before 20060225, and Solaris 8 […]

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

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

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-12951 CVE-2019-13503 CVE-2019-19307 CVE-2020-25756 CVE-2020-25887 CVE-2021-26528 CVE-2021-26529 CVE-2021-26530  +12 more Upstream summary: An issue was discovered in Mongoose before 6.15. The parse_mqtt() function in mg_mqtt.c has a critical […]

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How to Configure OpenDKIM with Postfix on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Configure OpenDKIM with Postfix on Debian 9

Introduction Deploying configure opendkim with postfix on debian 9 on a Debian 9 Stretch 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 You will […]

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Debian 11 — libjbcrypt-java — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — libjbcrypt-java — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2015-0886 Upstream summary: Integer overflow in the crypt_raw method in the key-stretching implementation in jBCrypt before 0.4 makes it easier for remote attackers to determine cleartext values of […]

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