April 2021 - Page 19 of 66

Gentoo Linux — www-apps/nextcloud — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — www-apps/nextcloud — multiple vulnerabilities (20 CVEs) — patch and remediation guide

  • April 22, 2021
  • Linux
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🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202208-17 Related CVEs: CVE-2021-32653 CVE-2021-32654 CVE-2021-32655 CVE-2021-32656 CVE-2021-32657 CVE-2021-32678 CVE-2021-32679 CVE-2021-32680  +12 more Upstream summary: Multiple vulnerabilities have been discovered in Nextcloud. Please review the CVE identifiers referenced below for details. Table […]

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Gentoo Linux — dev-java/ant — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — dev-java/ant — multiple vulnerabilities (2 CVEs) — patch and remediation guide

  • April 22, 2021
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202011-18 Related CVEs: CVE-2020-11979 CVE-2020-1945 Upstream summary: A previous fix for a security vulnerability involving insecure temporary files has been found to be incomplete. Table of contents Symptom & Impact Environment & […]

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How to Set Up TimescaleDB on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Set Up TimescaleDB on Oracle Linux 8

Introduction Setting up set up timescaledb 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 Set Up TimescaleDB on Oracle Linux 8, with all the commands you need, the SELinux and firewalld considerations to keep in […]

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Oracle Linux 8 — java-17-openjdk — security and stability fixes — required update — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — java-17-openjdk — security and stability fixes — required update (ELSA-2022-7000)

  • April 22, 2021
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-7000 Related CVEs: CVE-2022-21618 CVE-2022-21624 CVE-2022-21626 CVE-2022-21628 CVE-2022-21619 CVE-2022-39399 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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openSUSE Tumbleweed — crawl — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — crawl — vulnerability — patch and remediation guide

  • April 22, 2021
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2020:0549-1 (see also SUSE bugzilla) Related CVEs: CVE-2020-11722 Upstream summary: Dungeon Crawl Stone Soup (aka DCSS or crawl) before 0.25 allows remote attackers to execute arbitrary code via Lua bytecode embedded in […]

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FreeBSD 13 — libsrtp — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — libsrtp — vulnerability — patch and remediation guide

  • April 22, 2021
  • BSD
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🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: libsrtp — DoS via crafted RTP header vulnerability Related CVEs: CVE-2015-6360 Upstream summary: libsrtp reports: Prevent potential DoS attack due to lack of bounds checking on RTP header CSRC count […]

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FreeBSD 13 — openvpn-polarssl — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — openvpn-polarssl — multiple vulnerabilities (8 CVEs) — patch and remediation guide

  • April 22, 2021
  • BSD
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: OpenVPN — out-of-bounds write in legacy key-method 1 Related CVEs: CVE-2017-12166 CVE-2017-7478 CVE-2017-7479 CVE-2017-7508 CVE-2017-7512 CVE-2017-7520 CVE-2017-7521 CVE-2017-7522 Upstream summary: Steffan Karger reports: The bounds check in read_key() was performed […]

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FreeBSD 13 — mkvtoolnix — security advisory — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — mkvtoolnix — security advisory — patch and remediation guide

  • April 22, 2021
  • BSD
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🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: mkvtoolnix — code execution via specially crafted files Upstream summary: Moritz Bunkus reports: most of the bugs fixed on 2016-09-06 and 2016-09-07 for issue #1780 are potentially exploitable. The scenario […]

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FreeBSD 13 — rubygem-rack — multiple vulnerabilities (15 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — rubygem-rack — multiple vulnerabilities (15 CVEs) — patch and remediation guide

  • April 22, 2021
  • BSD
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: rack — possible denial of service vulnerability in header parsing Related CVEs: CVE-2011-4815 CVE-2011-4838 CVE-2011-5036 CVE-2011-5037 CVE-2015-1840 CVE-2015-3224 CVE-2015-3225 CVE-2015-3226  +7 more Upstream summary: ooooooo_q reports: Carefully crafted input can […]

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How to Set Up SSH Key-Based Authentication on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Set Up SSH Key-Based Authentication on RHEL 7

  • April 22, 2021
  • Linux
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How to Set Up SSH Key-Based Authentication on RHEL 7 SSH key-based authentication replaces password logins with a cryptographic key pair: a private key that stays on your local machine and a public key that you install on the remote server. When you connect, the server challenges your SSH client to prove it holds the […]

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