Linux

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

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

  • July 27, 2026
  • Linux
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🔴 Critical   ⏱ 15–90 min  Last verified: 27 July 2026 Affected versions: SLES 16 📖 ~4 min read  •  Source: SUSE advisory RHSA-2026:1472 (see also SUSE bugzilla) Related CVEs: CVE-2025-15467 CVE-2006-3738 CVE-2026-28388 CVE-2026-31789 CVE-2025-11187 CVE-2025-15468 CVE-2006-2937 CVE-2007-4995  +12 more Upstream summary: Issue summary: Parsing CMS AuthEnvelopedData or EnvelopedData message with maliciously crafted AEAD parameters […]

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Oracle Linux 8 — Unbreakable Enterprise kernel — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — Unbreakable Enterprise kernel — vulnerability — patch and remediation guide (ELSA-2026-50271)

  • July 27, 2026
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 27 July 2026 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2026-50271 Related CVEs: CVE-2026-23270 CVE-2026-31402 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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Oracle Linux 9 — bind — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — bind — vulnerability — patch and remediation guide

  • July 27, 2026
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 27 July 2026 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2026-8075 Related CVEs: CVE-2026-1519 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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How to Set Up SSH Key-Based Authentication on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Set Up SSH Key-Based Authentication on RHEL 9

  • July 27, 2026
  • Linux
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SSH key-based authentication is the gold standard for remote server access. Unlike passwords, SSH keys cannot be guessed by brute-force attacks. An Ed25519 private key is a 256-bit secret that would take longer than the age of the universe to crack by exhaustive search. When combined with a key passphrase, you have two-factor authentication: something […]

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Amazon Linux 2 — freerdp — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — freerdp — multiple vulnerabilities (20 CVEs) — patch and remediation guide

  • July 27, 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 ALAS2-2026-3238 Related CVEs: CVE-2026-33952 CVE-2026-33977 CVE-2026-33983 CVE-2026-33984 CVE-2026-33985 CVE-2026-33986 CVE-2026-25941 CVE-2026-25942  +12 more Upstream summary: DoS via WINPR_ASSERT in rts_read_auth_verifier_no_checks NOTE: https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-4v4p-9v5x-hc93 (CVE-2026-33952) DoS via WINPR_ASSERT in IMA ADPCM audio […]

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

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

  • July 27, 2026
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 27 July 2026 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2007-6321 CVE-2008-5619 CVE-2008-5620 CVE-2009-0413 CVE-2009-4076 CVE-2009-4077 CVE-2010-0464 CVE-2011-1491  +12 more Upstream summary: Cross-site scripting (XSS) vulnerability in RoundCube webmail 0.1rc2, 2007-12-09, and earlier versions, when using Internet Explorer, […]

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Ubuntu 14.04 — python2.7 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — python2.7 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

  • July 27, 2026
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 27 July 2026 Affected versions: Ubuntu 14.04 (trusty) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8018-3 Related CVEs: CVE-2026-0672 CVE-2025-15282 CVE-2025-12084 CVE-2026-0865 CVE-2025-0938 CVE-2024-11168 https://launchpad.net/bugs/2125702 CVE-2025-8194  +12 more Upstream summary: USN-8018-1 fixed CVE-2025-12084, CVE-2025-15282, CVE-2026-0672, CVE-2026-0865 for python3. This update provides the corresponding updates for […]

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

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

  • July 27, 2026
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 27 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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Fedora 42 — prosody — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Fedora 42

Fedora 42 — prosody — multiple vulnerabilities (4 CVEs) — patch and remediation guide

  • July 27, 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-2026-1efa008794 Related CVEs: CVE-2026-43507 CVE-2026-43504 CVE-2026-43505 CVE-2026-43506 Upstream summary: # Prosody 13.0.5 Upstream is pleased to announce a new minor release from their stable branch. This is a security release for the […]

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Common Problems 113929

RHEL 10 – systemd service fails to start with Exec format error – Fix & Prevention

  • July 26, 2026
  • Linux
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🟠 High   ⏱ 5–30 min  Last verified: 26 July 2026 Affected versions: 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 & Hardening Related […]

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