Common Problems

AlmaLinux 9 — zziplib — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on AlmaLinux 9

AlmaLinux 9 — zziplib — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 9 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2025:20838 Related CVEs: CVE-2018-17828 CVE-2020-18770 Upstream summary: The zziplib is a lightweight library to easily extract data from zip files. Security Fix(es): * zziplib: directory traversal in unzzip_cat in the bins/unzzipcat-mem.c (CVE-2018-17828) […]

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Oracle Linux 9 — .NET 6.0 security, bug fix, and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — .NET 6.0 security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2023-0077)

🟡 Medium   ⏱ 10–30 min  Last verified: 26 September 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-0077 Related CVEs: CVE-2023-21538 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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NetBSD 9.4 — py-impacket — vulnerability — patch and remediation guide — diagnosis and fix on NetBSD 9.4

NetBSD 9.4 — py-impacket — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: NetBSD 9.4 📖 ~4 min read  •  Source: pkgsrc audit-packages entry Related CVEs: CVE-2021-31800 Upstream summary: pkgsrc audit-packages flagged py{27,36,37,38,39}-impacket-[0-9]* for vulnerability class 'directory-traversal'. Reference: https://nvd.nist.gov/vuln/detail/CVE-2021-31800 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis […]

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Common Problems 120125

Debian 12 NGINX 502 Bad Gateway with PHP-FPM

🟠 High   ⏱ 5–30 min  Last verified: 26 September 2023 Affected versions: Debian 12 📖 ~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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NetBSD 9.4 — php56-typo3 — vulnerability — patch and remediation guide — diagnosis and fix on NetBSD 9.4

NetBSD 9.4 — php56-typo3 — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: NetBSD 9.4 📖 ~4 min read  •  Source: pkgsrc audit-packages entry Upstream summary: pkgsrc audit-packages flagged php56-typo3<8.0 for vulnerability class 'eol'. Reference: https://ftp.NetBSD.org/pub/NetBSD/packages/vulns/eol-packages Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary […]

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Debian 12 — falcosecurity-libs — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — falcosecurity-libs — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 26 September 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2023-49287 Upstream summary: TinyDir is a lightweight C directory and file reader. Buffer overflows in the `tinydir_file_open()` function. This vulnerability has been patched in version 1.2.6. Table of […]

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Alpine Linux edge — knot-resolver — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — knot-resolver — multiple vulnerabilities (8 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 5.7.1-r0 📖 ~4 min read  •  Source: Alpine secdb entry — knot-resolver 5.7.1-r0 Related CVEs: CVE-2023-50387 CVE-2023-50868 CVE-2022-40188 CVE-2020-12667 CVE-2019-19331 CVE-2019-10190 CVE-2019-10191 CVE-2018-1110 Upstream summary: Alpine community repository for vedge ships knot-resolver 5.7.1-r0 which addresses CVE-2023-50387. […]

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Debian 12 — audacity — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — audacity — multiple vulnerabilities (7 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 26 September 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2007-6061 CVE-2009-0490 CVE-2009-3560 CVE-2009-3720 CVE-2016-2540 CVE-2016-2541 CVE-2020-11867 Upstream summary: Audacity 1.3.2 creates a temporary directory with a predictable name without checking for previous existence of that directory, which […]

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Rocky Linux 8 — python38 — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Rocky Linux 8

Rocky Linux 8 — python38 — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Rocky Linux 8 📖 ~4 min read  •  Source: Rocky Linux RXSA RLSA-2023:7050 Related CVEs: CVE-2007-4559 CVE-2023-32681 Upstream summary: Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level dynamic data types and dynamic typing. Python […]

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NetBSD 9.4 — drupal-8.[0-9]* — vulnerability — patch and remediation guide — diagnosis and fix on NetBSD 9.4

NetBSD 9.4 — drupal — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: NetBSD 9.4 📖 ~4 min read  •  Source: pkgsrc audit-packages entry Upstream summary: pkgsrc audit-packages flagged drupal for vulnerability class 'eol'. Reference: https://www.drupal.org/psa-2021-11-30 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary […]

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