May 2021 - Page 44 of 69

FreeBSD 13 — gnu-radius — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — gnu-radius — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: gnu-radius — SNMP-related denial-of-service Related CVEs: CVE-2004-0849 Upstream summary: An iDEFENSE security advisory reports: Remote exploitation of an input validation error in version 1.2 of GNU radiusd could allow a […]

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Ubuntu 18.04 — wkhtmltopdf — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — wkhtmltopdf — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6232-1 Related CVEs: CVE-2020-21365 Upstream summary: It was discovered that wkhtmltopdf was not properly enforcing the same-origin policy when processing certain HTML files. If a user or automated system using […]

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How to Configure SSL/TLS with OpenSSL on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Configure SSL/TLS with OpenSSL on Oracle Linux 8

Introduction Setting up configure ssl/tls with openssl on oracle linux 8 on a Oracle Linux 8 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Configure SSL/TLS with OpenSSL on Oracle Linux 8, with all the commands you need, the SELinux and firewalld considerations to […]

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

Ubuntu 20.04 — mpmath — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7160-1 Related CVEs: CVE-2021-29063 Upstream summary: It was discovered Mpmath incorrectly handled certain regular expressions. An attacker could possibly use this issue to cause Mpmath to consume resources, leading to […]

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Ubuntu 16.04 — tor — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — tor — multiple vulnerabilities (7 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5036-1 Related CVEs: CVE-2019-8955 CVE-2021-28089 CVE-2021-28090 CVE-2021-34548 CVE-2021-34549 CVE-2021-34550 CVE-2021-38385 Upstream summary: It was discovered that Tor incorrectly handled certain memory operations. A remote attacker could use this issue to […]

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SLES 12 — vsftpd — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on SLES 12

SLES 12 — vsftpd — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: SLES 12 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2022:3320-1 (see also SUSE bugzilla) Related CVEs: CVE-2021-3618 CVE-2015-1419 Upstream summary: ALPACA is an application layer protocol content confusion attack, exploiting TLS servers implementing different protocols but using compatible certificates, such as […]

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SLES 15 — kmod — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — kmod — multiple vulnerabilities (6 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-CU-2021:494-1 (see also SUSE bugzilla) Related CVEs: CVE-2020-3702 CVE-2021-3752 CVE-2021-3744 CVE-2021-3764 CVE-2021-40490 CVE-2021-3669 Upstream summary: u'Specifically timed and handcrafted traffic can cause internal errors in a WLAN device that lead to improper […]

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Oracle Linux 8 — firefox — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — firefox — vulnerability — patch and remediation guide (ELSA-2020-2031)

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-2031 Related CVEs: CVE-2020-12387 CVE-2020-12395 CVE-2020-6831 CVE-2020-12392 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches […]

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Debian 9 — dpdk — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 9

Debian 9 — dpdk — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 9 (stretch) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-14818 CVE-2020-10722 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & […]

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