Linux

Common Problems 118502

Ubuntu 16.04 Interface Fails to Come Up After /etc/network/interfaces Edit

🟡 Medium   ⏱ 5–30 min  Last verified: 19 May 2026 📖 ~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 & Cross-Refs References & Further […]

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SLES 12 — gpg2 — multiple vulnerabilities (11 CVEs) — patch and remediation guide — diagnosis and fix on SLES 12

SLES 12 — gpg2 — multiple vulnerabilities (11 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: SLES 12 📖 ~4 min read  •  Source: SUSE advisory RHSA-2026:0697 (see also SUSE bugzilla) Related CVEs: CVE-2025-68973 CVE-2010-2547 CVE-2013-4402 CVE-2018-12020 CVE-2022-34903 CVE-2014-4617 CVE-2015-1606 CVE-2015-1607  +3 more Upstream summary: In GnuPG before 2.4.9, armor_filter in g10/armor.c has two increments of an index […]

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Common Problems 115996

Ubuntu 26.04 LTS – Timesync drift causes Kerberos and TLS failures – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 19 May 2026 Affected versions: Ubuntu 26.04 LTS 📖 ~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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Common Problems 116995

Ubuntu 22.04 LTS – Time drift breaks TLS and package validation – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 19 May 2026 Affected versions: Ubuntu 22.04 LTS 📖 ~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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SLES 16 — bind — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on SLES 16

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

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: SLES 16 📖 ~4 min read  •  Source: SUSE advisory RHSA-2026:11371 (see also SUSE bugzilla) Related CVEs: CVE-2026-1519 CVE-2026-3104 CVE-2025-13878 CVE-2025-40778 CVE-2025-40780 CVE-2025-8677 CVE-2006-4339 CVE-2007-2925  +12 more Upstream summary: If a BIND resolver is performing DNSSEC validation and encounters a maliciously crafted […]

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Debian 11 — mutt — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — mutt — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2003-0140 CVE-2003-0167 CVE-2004-0078 CVE-2005-2351 CVE-2006-3242 CVE-2006-5297 CVE-2006-5298 CVE-2007-1268  +12 more Upstream summary: Buffer overflow in Mutt 1.4.0 and possibly earlier versions, 1.5.x up to 1.5.3, and other programs […]

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Debian 9 — firefox-esr — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Debian 9

Debian 9 — firefox-esr — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Debian 9 (stretch) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2017-5470 CVE-2017-7753 CVE-2017-7793 CVE-2017-7826 CVE-2017-7843 CVE-2018-5156 CVE-2018-12376 CVE-2018-12383  +12 more Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – […]

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Common Problems 113991

RHEL 10 – boot drops to emergency mode from stale fstab UUID entry – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 19 May 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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Common Problems 117997

Ubuntu 18.04 ext4 Filesystem Mounts Read-Only After I/O Errors

🟡 Medium   ⏱ 5–30 min  Last verified: 19 May 2026 📖 ~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 & Cross-Refs References & Further […]

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Debian 12 — openjdk-17 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — openjdk-17 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2021-2163 CVE-2021-35556 CVE-2021-35559 CVE-2021-35561 CVE-2021-35564 CVE-2021-35567 CVE-2021-35578 CVE-2021-35586  +12 more Upstream summary: Vulnerability in the Java SE, Java SE Embedded, Oracle GraalVM Enterprise Edition product of Oracle Java […]

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