Common Problems

Debian 11 — virtualbox-guest-additions-iso — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — virtualbox-guest-additions-iso — multiple vulnerabilities (6 CVEs) — patch and remediation guide

  • October 23, 2021
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 23 October 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2011-2300 CVE-2012-0105 CVE-2014-0405 CVE-2014-2441 CVE-2014-6540 CVE-2018-2693 Upstream summary: Unspecified vulnerability in Oracle VM VirtualBox 3.0, 3.1, 3.2, and 4.0 through 4.0.8 allows local users to affect confidentiality, integrity, […]

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Common Problems 118446

Ubuntu 16.04 LTS – interface stays down after boot

  • October 23, 2021
  • Linux
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🟠 High   ⏱ 5–30 min  Last verified: 23 October 2021 Affected versions: Ubuntu 16.04 LTS Ubuntu 16.04 Ubuntu 16.04.7 📖 ~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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FreeBSD 13 — isc-dhcpd — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — isc-dhcpd — vulnerability — patch and remediation guide

  • October 23, 2021
  • BSD
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🟢 Low   ⏱ 5–15 min  Last verified: 23 October 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: isc-dhcpd — format string vulnerabilities Related CVEs: CVE-2004-1006 Upstream summary: The ISC DHCP programs are vulnerable to several format string vulnerabilities which may allow a remote attacker to execute arbitrary […]

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Common Problems 117468

Ubuntu 20.04 LTS – /boot is full and kernel upgrades fail

  • October 23, 2021
  • Linux
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🟠 High   ⏱ 5–30 min  Last verified: 23 October 2021 Affected versions: Ubuntu 20.04 LTS Ubuntu 20.04 Ubuntu 20.04.6 📖 ~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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Common Problems 113098

Windows Server 2016 – BitLocker boot-start filter driver delays startup – Fix and Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 23 October 2021 Affected versions: Windows Server 2016 📖 ~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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FreeBSD 13 — kdepim — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — kdepim — vulnerability — patch and remediation guide

  • October 23, 2021
  • BSD
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🟢 Low   ⏱ 5–15 min  Last verified: 23 October 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: kdepim exploitable buffer overflow in VCF reader Related CVEs: CVE-2003-0988 Upstream summary: A buffer overflow is present in some versions of the KDE personal information manager (kdepim) which may be […]

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Common Problems 112417

Windows Server 2019 – NIC RSS and VMQ driver mismatch causes packet loss – Fix and Prevention

🟠 High   ⏱ 5–30 min  Last verified: 23 October 2021 Affected versions: Windows Server 2019 📖 ~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 — knot — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

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

  • October 23, 2021
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 23 October 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2014-0486 CVE-2016-6171 CVE-2017-11104 Upstream summary: Knot DNS before 1.5.2 allows remote attackers to cause a denial of service (application crash) via a crafted DNS message. Table of contents […]

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

Debian 11 — texlive-bin — multiple vulnerabilities (20 CVEs) — patch and remediation guide

  • October 23, 2021
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 23 October 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2007-5935 CVE-2007-5936 CVE-2007-5937 CVE-2007-5940 CVE-2009-1284 CVE-2010-0739 CVE-2010-0827 CVE-2010-1440  +12 more Upstream summary: Stack-based buffer overflow in hpc.c in dvips in teTeX and TeXlive 2007 and earlier allows user-assisted […]

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Ubuntu 16.04 — hivex — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — hivex — vulnerability — patch and remediation guide

  • October 23, 2021
  • Linux
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🟢 Low   ⏱ 5–15 min  Last verified: 23 October 2021 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5148-2 Related CVEs: CVE-2021-3504 Upstream summary: USN-5148-1 fixed a vulnerability in hivex. This update provides the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM. Original advisory details: It […]

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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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