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Ubuntu 18.04 — libtar — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — libtar — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 30 June 2021 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7398-1 Related CVEs: CVE-2021-33643 CVE-2021-33644 CVE-2021-33645 CVE-2021-33646 Upstream summary: It was discovered that libtar may perform out-of-bounds reads when processing specially crafted tar files. An attacker could possibly use this […]

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Ubuntu 20.04 — nettle — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — nettle — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 30 June 2021 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4990-1 Related CVEs: CVE-2018-16869 CVE-2021-3580 CVE-2021-20305 Upstream summary: It was discovered that Nettle incorrectly handled RSA decryption. A remote attacker could possibly use this issue to cause Nettle to crash, […]

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Ubuntu 20.04 — tor — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — tor — multiple vulnerabilities (7 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 30 June 2021 Affected versions: Ubuntu 20.04 (focal) 📖 ~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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Level Order Traversal in a Binary Tree — step-by-step Programming tutorial on Progressive Robot

Level Order Traversal in a Binary Tree

URL: https://www.progressiverobot.com/level-order-traversal-in-a-binary-tree/ Level Order Traversal is one of the methods for traversing across a Binary Tree. In this article, we shall look at how we can implement this algorithm in C/C++. But before that, let us have our concepts covered. Building the concepts A Binary Tree is a data structure where every node has at-most […]

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SLES 15 — php8-pear — vulnerability — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — php8-pear — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 30 June 2021 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2022:3198-1 Related CVEs: CVE-2021-32610 Upstream summary: In Archive_Tar before 1.4.14, symlinks can refer to targets outside of the extracted archive, a different vulnerability than CVE-2020-36193. Table of contents Symptom & Impact Environment […]

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How to Monitor Docker with cAdvisor on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Monitor Docker with cAdvisor on FreeBSD 13

Introduction FreeBSD 13 is a UNIX-derived operating system renowned for its network stack performance, ZFS integration, and Jail isolation primitives. Setting up monitor docker with cadvisor on freebsd 13 on FreeBSD 13 follows the rc.conf/service(8) paradigm rather than systemd, which means enabling a service and configuring its startup options are done differently from any Linux […]

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SLES 15 — libass9 — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — libass9 — multiple vulnerabilities (6 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 30 June 2021 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2021:1174-1 (see also SUSE bugzilla) Related CVEs: CVE-2020-36430 CVE-2020-26682 CVE-2020-24994 CVE-2016-7969 CVE-2016-7970 CVE-2016-7972 Upstream summary: libass 0.15.x before 0.15.1 has a heap-based buffer overflow in decode_chars (called from decode_font and process_text) because […]

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How To Write Your First Ruby Program — step-by-step Programming tutorial on Progressive Robot

How To Write Your First Ruby Program

The “Hello, World!” program is a classic and time-honored tradition in computer programming. It’s a simple and complete first program for beginners, and it’s a good way to make sure your environment is properly configured. This tutorial will walk you through creating this program in Ruby.

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