ubuntu

Ubuntu 14.04 — grub2-signed — multiple vulnerabilities (10 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — grub2-signed — multiple vulnerabilities (10 CVEs) — patch and remediation guide

  • May 18, 2020
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 18 May 2020 Affected versions: Ubuntu 14.04 (trusty) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4432-2 Related CVEs: https://launchpad.net/bugs/1889556 https://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/GRUB2SecureBootBypass CVE-2020-10713 CVE-2020-14308 CVE-2020-14309 CVE-2020-14310 CVE-2020-14311 CVE-2020-15705  +2 more Upstream summary: USN-4432-1 fixed vulnerabilities in GRUB2 affecting Secure Boot environments. Unfortunately, the update introduced regressions for […]

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Common Problems 119014

Ubuntu 14.04 LTS Package Install Blocked by dpkg Lock

  • May 17, 2020
  • Linux
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🟡 Medium   ⏱ 5–30 min  Last verified: 17 May 2020 📖 ~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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Common Problems 117498

Ubuntu 20.04 LTS – boot delayed by systemd-networkd-wait-online timeout

  • May 17, 2020
  • Linux
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🟡 Medium   ⏱ 5–30 min  Last verified: 17 May 2020 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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Ubuntu 16.04 — open-iscsi — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — open-iscsi — multiple vulnerabilities (3 CVEs) — patch and remediation guide

  • May 17, 2020
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 17 May 2020 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6259-1 Related CVEs: CVE-2020-13987 CVE-2020-13988 CVE-2020-17437 Upstream summary: Jos Wetzels, Stanislav Dashevskyi, and Amine Amri discovered that Open-iSCSI incorrectly handled certain checksums for IP packets. An attacker could possibly use […]

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Ubuntu 20.04 — imlib2 — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — imlib2 — vulnerability — patch and remediation guide

  • May 17, 2020
  • Linux
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🟢 Low   ⏱ 5–15 min  Last verified: 17 May 2020 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5099-1 Related CVEs: CVE-2020-12761 Upstream summary: It was discovered that Imlib2 incorrectly handled certain ICO images. An attacker could use this issue to cause a denial of service and possibly […]

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

Ubuntu 16.04 — libpcap — vulnerability — patch and remediation guide

  • May 17, 2020
  • Linux
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🟢 Low   ⏱ 5–15 min  Last verified: 17 May 2020 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4221-1 Related CVEs: CVE-2019-15165 Upstream summary: It was discovered that libpcap did not properly validate PHB headers in some situations. An attacker could use this to cause a denial of […]

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Ubuntu 14.04 — ansible — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — ansible — multiple vulnerabilities (8 CVEs) — patch and remediation guide

  • May 17, 2020
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 17 May 2020 Affected versions: Ubuntu 14.04 (trusty) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7330-1 Related CVEs: CVE-2015-3908 CVE-2015-6240 CVE-2016-8614 CVE-2019-10206 CVE-2019-14846 CVE-2019-14904 CVE-2020-10729 CVE-2020-1739 Upstream summary: It was discovered that Ansible did not properly verify certain fields of X.509 certificates. An attacker could […]

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Common Problems 117524

Ubuntu 20.04 LTS Nginx Fails to Start Due to Port 80 Conflict

  • May 16, 2020
  • Linux
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🟡 Medium   ⏱ 5–30 min  Last verified: 16 May 2020 📖 ~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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How To Install phpBB on Ubuntu 14.04 — step-by-step Linux tutorial on Progressive Robot

How To Install phpBB on Ubuntu 14.04

  • May 16, 2020
  • Linux
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phpBB is a free flat-forum bulletin board software solution that can be used to stay in touch with a group of people or can power your entire website. You can create a very unique forum in minutes using the extensive database of user-created modifications and styles database containing hundreds of style and image packages.

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