Security Hardening

SLES 16 — libcjson1 — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on SLES 16

SLES 16 — libcjson1 — multiple vulnerabilities (5 CVEs) — patch and remediation guide

  • December 26, 2025
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 26 December 2025 Affected versions: SLES 16 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2025:03520-1 (see also SUSE bugzilla) Related CVEs: CVE-2025-57052 CVE-2023-50471 CVE-2023-50472 CVE-2024-31755 CVE-2023-26819 Upstream summary: cJSON 1.5.0 through 1.7.18 allows out-of-bounds access via the decode_array_index_from_pointer function in cJSON_Utils.c, allowing remote attackers to bypass […]

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SLES 16 — ghostscript — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on SLES 16

SLES 16 — ghostscript — multiple vulnerabilities (20 CVEs) — patch and remediation guide

  • December 26, 2025
  • Linux
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🔴 Critical   ⏱ 15–90 min  Last verified: 26 December 2025 Affected versions: SLES 16 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2021:3044-1 (see also SUSE bugzilla) Related CVEs: CVE-2021-3781 CVE-2013-5653 CVE-2016-7976 CVE-2016-7977 CVE-2016-7978 CVE-2016-7979 CVE-2019-3835 CVE-2019-3838  +12 more Upstream summary: A trivial sandbox (enabled with the `-dSAFER` option) escape flaw was found in […]

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Rocky Linux 8 — python-packaging — multiple vulnerabilities (18 CVEs) — patch and remediation guide — diagnosis and fix on Rocky Linux 8

Rocky Linux 8 — python-packaging — multiple vulnerabilities (18 CVEs) — patch and remediation guide

  • December 26, 2025
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Rocky Linux 8 📖 ~4 min read  •  Source: Rocky Linux RXSA RLSA-2023:5998 Related CVEs: CVE-2023-40217 CVE-2024-11168 CVE-2024-5642 CVE-2024-9287 CVE-2025-0938 CVE-2025-4138 CVE-2025-4330 CVE-2025-4435  +10 more Upstream summary: Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high […]

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Common Problems 114015

RHEL 10 – firewalld zone assignment resets when interface name changes

  • December 25, 2025
  • Linux
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🟡 Medium   ⏱ 5–30 min  Last verified: 25 December 2025 Affected versions: RHEL 10 RHEL 10.0 RHEL 10.1 📖 ~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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Windows Server 2025 — KB5055515 — security update — patch and remediation guide — diagnosis and fix on Windows Server 2025

Windows Server 2025 — KB5055515 — security update — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Windows Server 2025 📖 ~4 min read  •  Source: Microsoft KB5055515 • MSRC update-guide entry Related CVEs: CVE-2025-27737 Affected components: Windows Server 2025 Microsoft summary: Improper input validation in Windows Security Zone Mapping allows an unauthorized attacker to bypass a security feature […]

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FreeBSD 15 — py35-buildbot — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 15

FreeBSD 15 — py35-buildbot — multiple vulnerabilities (2 CVEs) — patch and remediation guide

  • December 25, 2025
  • BSD
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🟢 Low   ⏱ 5–15 min  Last verified: 25 December 2025 Affected versions: FreeBSD 15 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: buildbot — OAuth Authentication Vulnerability Related CVEs: CVE-2019-12300 CVE-2019-7313 Upstream summary: Buildbot accepted user-submitted authorization token from OAuth and used it to authenticate user. The vulnerability can lead to malicious […]

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FreeBSD 15 — nagios-devel — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 15

FreeBSD 15 — nagios-devel — multiple vulnerabilities (2 CVEs) — patch and remediation guide

  • December 25, 2025
  • BSD
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🟢 Low   ⏱ 5–15 min  Last verified: 25 December 2025 Affected versions: FreeBSD 15 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: nagios — Command Injection Vulnerability Related CVEs: CVE-2007-5803 CVE-2009-2288 Upstream summary: Secunia reports: A vulnerability has been reported in Nagios, which can be exploited by malicious users to potentially compromise […]

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FreeBSD 15 — openssh-portable-base — security advisory — patch and remediation guide — diagnosis and fix on FreeBSD 15

FreeBSD 15 — openssh-portable-base — security advisory — patch and remediation guide

  • December 25, 2025
  • BSD
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🟢 Low   ⏱ 5–15 min  Last verified: 25 December 2025 Affected versions: FreeBSD 15 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: OpenSSH — Memory corruption in sshd Upstream summary: The OpenSSH development team reports: A memory corruption vulnerability exists in the post- authentication sshd process when an AES-GCM cipher ([email protected] or […]

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FreeBSD 15 — de-openoffice — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 15

FreeBSD 15 — de-openoffice — multiple vulnerabilities (2 CVEs) — patch and remediation guide

  • December 25, 2025
  • BSD
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🟢 Low   ⏱ 5–15 min  Last verified: 25 December 2025 Affected versions: FreeBSD 15 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: openoffice — DOC document heap overflow vulnerability Related CVEs: CVE-2004-0752 CVE-2005-0941 Upstream summary: AD-LAB reports that a heap-based buffer overflow vulnerability exists in OpenOffice's handling of DOC documents. When reading […]

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Windows Server 2022 — KB5071544 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Windows Server 2022

Windows Server 2022 — KB5071544 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Windows Server 2022 📖 ~4 min read  •  Source: Microsoft KB5071544 • MSRC update-guide entry Related CVEs: CVE-2025-62454 CVE-2025-62457 CVE-2025-62458 CVE-2025-62466 CVE-2025-62470 CVE-2025-62472 CVE-2025-62473 CVE-2025-62549  +12 more Affected components: Windows Server 2022 Microsoft summary: Heap-based buffer overflow in Windows Cloud Files Mini […]

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