Linux

Ubuntu 16.04 — libphp-phpmailer — multiple vulnerabilities (7 CVEs) — patch and remediation guide

• May 18, 2022
• Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 18 May 2022 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5956-2 Related CVEs: CVE-2017-11503 CVE-2016-10033 CVE-2016-10045 CVE-2017-5223 CVE-2018-19296 CVE-2020-13625 CVE-2021-3603 Upstream summary: USN-5956-1 fixed vulnerabilities in PHPMailer. It was discovered that the fix for CVE-2017-11503 was incomplete. This update fixes […]

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CentOS Stream 9 — tbb — vulnerability — patch and remediation guide

• May 18, 2022
• Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 18 May 2022 Affected versions: CentOS Stream 9 📖 ~4 min read  •  Source: AlmaLinux/RHEL advisory ALSA-2025:1210 Related CVEs: CVE-2020-11023 Upstream summary: Threading Building Blocks (TBB) is a C++ runtime library that abstracts the low-level threading details necessary for optimal multi-core performance. Security Fix(es): * jquery: Untrusted […]

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SLES 12 — e2fsprogs — multiple vulnerabilities (5 CVEs) — patch and remediation guide

• May 18, 2022
• Linux
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🟠 High   ⏱ 15–60 min  Last verified: 18 May 2022 Affected versions: SLES 12 📖 ~4 min read  •  Source: SUSE advisory SUSE-CU-2022:1021-1 (see also SUSE bugzilla) Related CVEs: CVE-2022-1304 CVE-2019-5188 CVE-2015-0247 CVE-2015-1572 CVE-2019-5094 Upstream summary: An out-of-bounds read/write vulnerability was found in e2fsprogs 1.46.5. This issue leads to a segmentation fault and possibly […]

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Alpine Linux edge — gstreamer — multiple vulnerabilities (2 CVEs) — patch and remediation guide

• May 18, 2022
• Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 1.18.4-r0 📖 ~4 min read  •  Source: Alpine secdb entry — gstreamer 1.18.4-r0 Related CVEs: CVE-2021-3497 CVE-2021-3498 Upstream summary: Alpine main repository for vedge ships gstreamer 1.18.4-r0 which addresses CVE-2021-3497. Table of contents Symptom & Impact […]

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How To Move a PostgreSQL Data Directory to a New Location on Ubuntu 22.04

• May 18, 2022
• Linux
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Whether you’re adding more space, evaluating ways to optimize performance, or looking to take advantage of other storage features, this tutorial will guide you through relocating PostgreSQL’s data directory on an Ubuntu 22.04 server.

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How to Configure Nginx Server Blocks on Debian 11

• May 18, 2022
• Linux
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Introduction How to Configure Nginx Server Blocks on Debian 11 is a fundamental operation for any administrator maintaining a Debian 11 Bullseye server. Debian 11 Bullseye ships with the Linux 6.12 kernel, updated toolchains, and a fully refreshed package archive — meaning version numbers, configuration file paths, and some dependency chains differ from Debian 11. […]

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Oracle Linux 8 — 389-ds:1.4 — security and stability fixes — required update (ELSA-2021-3079)

• May 17, 2022
• Linux
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🟢 Low   ⏱ 5–15 min  Last verified: 17 May 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-3079 Related CVEs: CVE-2021-3652 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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AlmaLinux 8 — mtr — vulnerability — patch and remediation guide

• May 17, 2022
• Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALBA-2019:3667 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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Ubuntu 22.04 journalctl Logs Consume Excessive Disk Space

• May 17, 2022
• Linux
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🟡 Medium   ⏱ 5–30 min  Last verified: 17 May 2022 📖 ~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 […]

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Debian 11 — motion — multiple vulnerabilities (2 CVEs) — patch and remediation guide

• May 17, 2022
• Linux
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🟢 Low   ⏱ 5–15 min  Last verified: 17 May 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2008-2654 CVE-2020-26566 Upstream summary: Off-by-one error in the read_client function in webhttpd.c in Motion 3.2.10 and earlier might allow remote attackers to execute arbitrary code via a long […]

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