ubuntu

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

Ubuntu 20.04 — libdbi-perl — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 27 March 2021 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5030-1 Related CVEs: CVE-2014-10402 CVE-2020-14393 Upstream summary: It was discovered that the Perl DBI module incorrectly opened files outside of the folder specified in the data source name. A remote […]

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How To Install DenyHosts on Ubuntu 12.04 — step-by-step Linux tutorial on Progressive Robot

How To Install DenyHosts on Ubuntu 12.04

DenyHosts is a security tool written in python that monitors server access logs to prevent brute force attacks on a virtual private server. The program works by banning IP addresses that exceed a certain number of failed login attempts. This tutorial explains how to install denyhosts, how to whitelist your IP address, and where to find the denyhosts configuration file. It is written for Ubuntu 12.04.

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Common Problems 117562

Ubuntu 20.04 LTS Proxy Misconfiguration Breaks apt and curl

🟡 Medium   ⏱ 5–30 min  Last verified: 26 March 2021 Affected versions: 20.04 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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Ubuntu 16.04 — rabbitmq-server — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — rabbitmq-server — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 March 2021 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6265-1 Related CVEs: CVE-2017-4966 CVE-2019-11287 CVE-2021-22116 CVE-2016-9877 Upstream summary: It was discovered that RabbitMQ incorrectly handled certain signed-in user credentials. An attacker could possibly use this issue to expose sensitive […]

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Ubuntu 16.04 — libexif — multiple vulnerabilities (12 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — libexif — multiple vulnerabilities (12 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 March 2021 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4624-1 Related CVEs: CVE-2020-0452 CVE-2020-0093 CVE-2020-0182 CVE-2020-0198 CVE-2020-13112 CVE-2020-13113 CVE-2020-13114 CVE-2018-20030  +4 more Upstream summary: It was discovered that libexif incorrectly handled certain inputs. An attacker could possibly use this […]

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CHAT