Troubleshooting

Amazon Linux 2023 — protobuf — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2023

Amazon Linux 2023 — protobuf — multiple vulnerabilities (4 CVEs) — patch and remediation guide

  • May 12, 2026
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2023 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2023-2026-1407 Related CVEs: CVE-2026-0994 CVE-2022-1941 CVE-2022-3171 CVE-2021-22570 Upstream summary: A denial-of-service (DoS) vulnerability exists in google.protobuf.json_format.ParseDict() in Python, where the max_recursion_depth limit can be bypassed when parsing nested google.protobuf.Any messages. […]

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How to Set Up a LEMP Stack on SLES 16 — step-by-step SUSE Linux Enterprise 16 tutorial on Progressive Robot

How to Set Up a LEMP Stack on SLES 16

Introduction This tutorial covers How to Set Up a LEMP Stack on SLES 16 on SLES 16. SLES 16 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Prerequisites Ensure your SLES 16 system is up to date: […]

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FreeBSD 15 — py311-psutil — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 15

FreeBSD 15 — py311-psutil — vulnerability — patch and remediation guide

  • May 12, 2026
  • BSD
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🟢 Low   ⏱ 5–15 min  Last verified: 12 May 2026 Affected versions: FreeBSD 15 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: py-psutil — double free vulnerability Related CVEs: CVE-2019-18874 Upstream summary: ret2libc reports: psutil (aka python-psutil) through 5.6.5 can have a double free. This occurs because of refcount mishandling within a […]

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FreeBSD 14 — nghttp — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 14

FreeBSD 14 — nghttp — multiple vulnerabilities (7 CVEs) — patch and remediation guide

  • May 12, 2026
  • BSD
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🟡 Medium   ⏱ 10–30 min  Last verified: 12 May 2026 Affected versions: FreeBSD 14 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: nghttp2 — CWE-617: Reachable Assertion Related CVEs: CVE-2015-8659 CVE-2016-1544 CVE-2018-1000168 CVE-2019-9511 CVE-2019-9513 CVE-2020-11080 CVE-2026-27135 Upstream summary: https://github.com/nghttp2/nghttp2/security/advisories/GHSA-6933-cjhr-5qg6 reports: nghttp2 is an implementation of the Hypertext Transfer Protocol version 2 in […]

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FreeBSD 14 — liboqs — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 14

FreeBSD 14 — liboqs — multiple vulnerabilities (2 CVEs) — patch and remediation guide

  • May 12, 2026
  • BSD
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🟢 Low   ⏱ 5–15 min  Last verified: 12 May 2026 Affected versions: FreeBSD 14 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: liboqs — Secret-dependent branching in HQC Related CVEs: CVE-2024-54137 CVE-2025-52473 Upstream summary: The OpenQuantumSafe project reports: Secret-dependent branching in HQC reference implementation when compiled with Clang 17-20 for optimizations above […]

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Rocky Linux 8 — perl-Time-HiRes — vulnerability — patch and remediation guide — diagnosis and fix on Rocky Linux 8

Rocky Linux 8 — perl-Time-HiRes — vulnerability — patch and remediation guide

  • May 12, 2026
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Rocky Linux 8 📖 ~4 min read  •  Source: Rocky Linux RXSA RLSA-2026:8096 Related CVEs: CVE-2025-40909 Upstream summary: Perl is a high-level programming language that is commonly used for system administration utilities and web programming. Security Fix(es): * perl: Perl threads have […]

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FreeBSD 15 — sympa — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 15

FreeBSD 15 — sympa — multiple vulnerabilities (5 CVEs) — patch and remediation guide

  • May 12, 2026
  • BSD
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🟡 Medium   ⏱ 10–30 min  Last verified: 12 May 2026 Affected versions: FreeBSD 15 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: sympa — Inappropriate use of the cookie parameter can be a security threat. This parameter may also not provide sufficient security. Related CVEs: CVE-2005-0073 CVE-2012-2352 CVE-2015-1306 CVE-2020-29668 CVE-2020-9369 Upstream summary: […]

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How to Configure AppArmor on SLES 16 — step-by-step SUSE Linux Enterprise 16 tutorial on Progressive Robot

How to Configure AppArmor on SLES 16

Introduction This tutorial covers How to Configure AppArmor on SLES 16 on SLES 16. SLES 16 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Step 1 — Check AppArmor Status systemctl status apparmor aa-status Step 2 — […]

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Common Problems 116059

Ubuntu 26.04 LTS – system clock drifts because systemd-timesyncd cannot sync

  • May 12, 2026
  • Linux
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🟠 High   ⏱ 5–30 min  Last verified: 12 May 2026 Affected versions: Ubuntu 26.04 LTS Ubuntu 26.04 Ubuntu 26.04.1 📖 ~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 […]

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Debian 13 — golang-github-docker-docker-credential-helpers — vulnerability — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — golang-github-docker-docker-credential-helpers — vulnerability — patch and remediation guide

  • May 12, 2026
  • Linux
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🟢 Low   ⏱ 5–15 min  Last verified: 12 May 2026 Affected versions: Debian 13 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-1020014 Upstream summary: docker-credential-helpers before 0.6.3 has a double free in the List functions. Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step […]

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