ubuntu

Ubuntu 14.04 — grub2 — multiple vulnerabilities (11 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — grub2 — multiple vulnerabilities (11 CVEs) — patch and remediation guide

  • July 26, 2020
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 26 July 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  +3 more Upstream summary: USN-4432-1 fixed vulnerabilities in GRUB2 affecting Secure Boot environments. Unfortunately, the update introduced regressions for […]

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How To Protect an Nginx Server with Fail2Ban on Ubuntu 20.04 — step-by-step Linux tutorial on Progressive Robot

How To Protect an Nginx Server with Fail2Ban on Ubuntu 20.04

  • July 26, 2020
  • Linux
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In this guide, you will learn how to install `fail2ban` on a Ubuntu 20.04 server and configure it to monitor your Nginx logs for intrusion attempts. Fail2ban can significantly mitigate brute force attacks by creating rules that automatically alter your firewall configuration to ban specific IPs after a certain number of unsuccessful login attempts. This will allow your server to harden itself against these access attempts without intervention from you.

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Ubuntu 16.04 — moin — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — moin — multiple vulnerabilities (6 CVEs) — patch and remediation guide

  • July 26, 2020
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 26 July 2020 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4629-1 Related CVEs: CVE-2020-15275 CVE-2020-25074 CVE-2017-5934 CVE-2016-7146 CVE-2016-7148 CVE-2016-9119 Upstream summary: Michael Chapman discovered that MoinMoin incorrectly handled certain cache actions. An attacker could possibly use this issue to execute […]

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Ubuntu 16.04 — ruby-websocket-extensions — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — ruby-websocket-extensions — vulnerability — patch and remediation guide

  • July 25, 2020
  • Linux
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🟢 Low   ⏱ 5–15 min  Last verified: 25 July 2020 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4502-1 Related CVEs: CVE-2020-7663 Upstream summary: It was discovered that websocket-extensions does not properly parse special headers. A remote attacker could use this issue to cause regex backtracking, resulting in […]

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Ubuntu 20.04 — pcre3 — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — pcre3 — multiple vulnerabilities (2 CVEs) — patch and remediation guide

  • July 25, 2020
  • Linux
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🟢 Low   ⏱ 5–15 min  Last verified: 25 July 2020 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5425-1 Related CVEs: CVE-2019-20838 CVE-2020-14155 Upstream summary: Yunho Kim discovered that PCRE incorrectly handled memory when handling certain regular expressions. An attacker could possibly use this issue to cause applications […]

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Установка Composer в Ubuntu 20.04 [Краткое руководство] — step-by-step Linux tutorial on Progressive Robot

Установка Composer в Ubuntu 20.04 [Краткое руководство]

  • July 25, 2020
  • Linux
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В этом кратком руководстве мы расскажем об установке Composer на сервере под управлением Ubuntu 20.04. Более детальный вариант настоящего руководства с подробным разъяснениями каждого шага можно найти в [статье «Установка и настройка Composer в Ubuntu…

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