Security Hardening

AlmaLinux 8 — glassfish-master-pom — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — glassfish-master-pom — multiple vulnerabilities (2 CVEs) — patch and remediation guide

  • January 4, 2026
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2025:9318 Related CVEs: CVE-2019-10086 CVE-2025-48734 Upstream summary: The javapackages-tools packages provide macros and scripts to support Java packaging. Security Fix(es): * apache-commons-beanutils: does not suppresses the class property in PropertyUtilsBean by default […]

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Common Problems 114128

RHEL 10 SSSD Offline Authentication Persists After Network Recovery

  • January 4, 2026
  • Linux
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🟠 High   ⏱ 5–30 min  Last verified: 4 January 2026 Affected versions: RHEL 10 📖 ~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 — pgpool2 — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — pgpool2 — multiple vulnerabilities (3 CVEs) — patch and remediation guide

  • January 4, 2026
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 4 January 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2023-22332 CVE-2024-45624 CVE-2025-46801 Upstream summary: Information disclosure vulnerability exists in Pgpool-II 4.4.0 to 4.4.1 (4.4 series), 4.3.0 to 4.3.4 (4.3 series), 4.2.0 to 4.2.11 (4.2 series), 4.1.0 to […]

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Debian 13 — golang-github-golang-jwt-jwt-v5 — vulnerability — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — golang-github-golang-jwt-jwt-v5 — vulnerability — patch and remediation guide

  • January 4, 2026
  • Linux
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🟢 Low   ⏱ 5–15 min  Last verified: 4 January 2026 Affected versions: Debian 13 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2025-30204 Upstream summary: golang-jwt is a Go implementation of JSON Web Tokens. Starting in version 3.2.0 and prior to versions 5.2.2 and 4.5.2, the function parse.ParseUnverified splits (via a […]

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FreeBSD 15 — bind98-base — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 15

FreeBSD 15 — bind98-base — multiple vulnerabilities (8 CVEs) — patch and remediation guide

  • January 4, 2026
  • BSD
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🟡 Medium   ⏱ 10–30 min  Last verified: 4 January 2026 Affected versions: FreeBSD 15 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: bind — denial of service vulnerability Related CVEs: CVE-2012-5166 CVE-2012-5688 CVE-2013-2266 CVE-2013-3919 CVE-2013-4854 CVE-2014-0591 CVE-2014-8500 CVE-2014-8680 Upstream summary: ISC reports: We have today posted updated versions of 9.9.6 and 9.10.1 […]

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Debian 13 — gnupg2 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — gnupg2 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

  • January 4, 2026
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 4 January 2026 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2005-2023 CVE-2006-3082 CVE-2006-3746 CVE-2006-6169 CVE-2006-6235 CVE-2007-1263 CVE-2008-1530 CVE-2010-2547  +12 more Upstream summary: The send_pinentry_environment function in asshelp.c in gpg2 on SUSE Linux 9.3 does not properly handle certain […]

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Amazon Linux 2 — libpq — multiple vulnerabilities (14 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — libpq — multiple vulnerabilities (14 CVEs) — patch and remediation guide

  • January 4, 2026
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2POSTGRESQL13-2025-010 Related CVEs: CVE-2025-1094 CVE-2016-2193 CVE-2023-2455 CVE-2024-10976 CVE-2024-10977 CVE-2024-10978 CVE-2024-10979 CVE-2024-7348  +6 more Upstream summary: Improper neutralization of quoting syntax in PostgreSQL libpq functions PQescapeLiteral(), PQescapeIdentifier(), PQescapeString(), and PQescapeStringConn() allows […]

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Common Problems 121993

SSH Login Denied After Hardening Changes

🟡 Medium   ⏱ 5–30 min  Last verified: 4 January 2026 Affected versions: FreeBSD 15 📖 ~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 13 — mosquitto — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — mosquitto — multiple vulnerabilities (20 CVEs) — patch and remediation guide

  • January 4, 2026
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 4 January 2026 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2017-7650 CVE-2017-7651 CVE-2017-7652 CVE-2017-7653 CVE-2017-7654 CVE-2017-7655 CVE-2017-9868 CVE-2018-12546  +12 more Upstream summary: In Mosquitto before 1.4.12, pattern based ACLs can be bypassed by clients that set their username/client […]

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Debian 13 — jbigkit — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — jbigkit — multiple vulnerabilities (2 CVEs) — patch and remediation guide

  • January 4, 2026
  • Linux
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🟢 Low   ⏱ 5–15 min  Last verified: 4 January 2026 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2013-6369 CVE-2017-9937 Upstream summary: Stack-based buffer overflow in the jbg_dec_in function in libjbig/jbig.c in JBIG-KIT before 2.1 allows remote attackers to cause a denial of service (application crash) […]

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Tags

AIX AlmaLinux Alpine Linux authentication authorization Backup Recovery Boot Startup Cloud Integration Common Problems Cpu Memory Database Debian Debian 11 Debian 12 Bookworm Debian 13 Trixie DNS Firewall Fix Prevention FreeBSD FreeBSD 12 FreeBSD 13 FreeBSD 14 FreeBSD 15 Kernel Drivers Logging Monitoring Lvm Raid NetBSD Networking openSUSE Operations Oracle Linux Oracle Linux 8 Oracle Linux 9 Package Management Performance Proxy Security Hardening SLES Storage Disk Systemd Services Tls Ssl Troubleshooting ubuntu VPN windows server

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