Linux

SLES 12 — libMagickCore — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on SLES 12

SLES 12 — libMagickCore — multiple vulnerabilities (20 CVEs) — patch and remediation guide

  • July 21, 2026
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 21 July 2026 Affected versions: SLES 12 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2026:1596-1 (see also SUSE bugzilla) Related CVEs: CVE-2026-33908 CVE-2026-28494 CVE-2026-28686 CVE-2026-28687 CVE-2026-28690 CVE-2026-28691 CVE-2026-28692 CVE-2026-28693  +12 more Upstream summary: ImageMagick is free and open-source software used for editing and manipulating digital images. […]

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Ubuntu 22.04 — linux-gke — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — linux-gke — multiple vulnerabilities (20 CVEs) — patch and remediation guide

  • July 21, 2026
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 21 July 2026 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8279-1 Related CVEs: CVE-2024-35862 CVE-2024-50060 CVE-2026-23274 CVE-2026-23351 CVE-2026-31419 CVE-2026-31431 CVE-2026-31504 CVE-2026-31533  +12 more Upstream summary: It was discovered that the Linux kernel algif_aead module did not properly handle in-place cryptographic […]

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openSUSE Leap 15.6 — python3-jwcrypto — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Leap 15.6

openSUSE Leap 15.6 — python3-jwcrypto — multiple vulnerabilities (4 CVEs) — patch and remediation guide

  • July 21, 2026
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Leap 15.6 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2026:21425-1 (see also SUSE bugzilla) Related CVEs: CVE-2026-39373 CVE-2022-3102 CVE-2023-6681 CVE-2024-28102 Upstream summary: JWCrypto implements JWK, JWS, and JWE specifications using python-cryptography. Prior to 1.5.7, an unauthenticated attacker can exhaust server […]

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SLES 12 — dnsmasq — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on SLES 12

SLES 12 — dnsmasq — multiple vulnerabilities (20 CVEs) — patch and remediation guide

  • July 21, 2026
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 21 July 2026 Affected versions: SLES 12 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2026:1826-1 (see also SUSE bugzilla) Related CVEs: CVE-2026-2291 CVE-2020-25681 CVE-2020-25682 CVE-2020-25683 CVE-2020-25684 CVE-2020-25685 CVE-2020-25686 CVE-2020-25687  +12 more Upstream summary: dnsmasqs extract_name() function can be abused to cause a heap buffer overflow, allowing […]

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Oracle Linux 9 — Unbreakable Enterprise kernel — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — Unbreakable Enterprise kernel — vulnerability — patch and remediation guide (ELSA-2026-50259)

  • July 21, 2026
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 21 July 2026 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2026-50259 Related CVEs: CVE-2026-43284 CVE-2026-43500 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & […]

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SLES 16 — hsqldb — vulnerability — patch and remediation guide — diagnosis and fix on SLES 16

SLES 16 — hsqldb — vulnerability — patch and remediation guide

  • July 21, 2026
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 21 July 2026 Affected versions: SLES 16 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2022:3823-1 (see also SUSE bugzilla) Related CVEs: CVE-2022-41853 Upstream summary: Those using java.sql.Statement or java.sql.PreparedStatement in hsqldb (HyperSQL DataBase) to process untrusted input may be vulnerable to a remote code execution attack. […]

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Oracle Linux 9 — Unbreakable Enterprise kernel — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — Unbreakable Enterprise kernel — vulnerability — patch and remediation guide (ELSA-2026-50279)

  • July 21, 2026
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 21 July 2026 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2026-50279 Related CVEs: CVE-2026-46333 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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Fedora 42 — pdns — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Fedora 42

Fedora 42 — pdns — multiple vulnerabilities (3 CVEs) — patch and remediation guide

  • July 21, 2026
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Fedora 42 📖 ~4 min read  •  Source: Fedora update FEDORA-2026-edc32576bb Related CVEs: CVE-2026-33610 CVE-2026-33611 CVE-2026-33609 Upstream summary: – Update to 5.0.4 Release notes: https://doc.powerdns.com/authoritative/changelog/5.0.html#change-5.0.4 Security advisory: https://docs.powerdns.com/authoritative/security-advisories/powerdns-advisory-2026-05.html Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage […]

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AlmaLinux 10 — libpq — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 10

AlmaLinux 10 — libpq — vulnerability — patch and remediation guide

  • July 20, 2026
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 10 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2026:0594 Related CVEs: CVE-2025-12818 Upstream summary: The libpq package provides the PostgreSQL client library, which allows client programs to connect to PostgreSQL servers. Security Fix(es): * postgresql: libpq undersizes allocations, via integer […]

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Common Problems 114021

RHEL 10 – Cockpit web console unreachable because socket unit is inactive – Fix & Prevention

  • July 20, 2026
  • Linux
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🟡 Medium   ⏱ 5–30 min  Last verified: 20 July 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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