August 2021 - Page 2 of 69

FreeBSD 13 — linux-c7-flashplugin — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — linux-c7-flashplugin — multiple vulnerabilities (20 CVEs) — patch and remediation guide

  • August 31, 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: flash — multiple vulnerabilities Related CVEs: CVE-2016-4273 CVE-2016-4286 CVE-2016-6981 CVE-2016-6982 CVE-2016-6983 CVE-2016-6984 CVE-2016-6985 CVE-2016-6986  +12 more Upstream summary: Adobe reports: These updates resolve type confusion vulnerabilities that could lead to […]

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How To Use Dig, Whois, & Ping on an Ubuntu VPS to Query DNS Data — step-by-step Linux tutorial on Progressive Robot

How To Use Dig, Whois, & Ping on an Ubuntu VPS to Query DNS Data

  • August 31, 2021
  • Linux
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Setting up domain names can be challenging for those who are inexperienced. The “dig” command can help verify that your domain settings are correct. This is also helpful for investigating how other websites set up their domain records. This guide will introduce the basics of how to query information with dig. It will also briefly explore the “ping” and “whois” commands.

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Debian 11 — libunivalue — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — libunivalue — vulnerability — patch and remediation guide

  • August 31, 2021
  • Linux
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🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-18936 Upstream summary: UniValue::read() in UniValue before 1.0.5 allow attackers to cause a denial of service (the class internal data reaches an inconsistent state) via input data that […]

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Debian 11 — zeromq3 — multiple vulnerabilities (10 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — zeromq3 — multiple vulnerabilities (10 CVEs) — patch and remediation guide

  • August 31, 2021
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2014-7202 CVE-2014-7203 CVE-2014-9721 CVE-2019-13132 CVE-2019-6250 CVE-2020-15166 CVE-2021-20234 CVE-2021-20235  +2 more Upstream summary: stream_engine.cpp in libzmq (aka ZeroMQ/C++)) 4.0.5 before 4.0.5 allows man-in-the-middle attackers to conduct downgrade attacks via […]

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How to Install Vault for Secrets Management on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Install Vault for Secrets Management on FreeBSD 13 (FREEBSD-13-2)

  • August 31, 2021
  • FreeBSD
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Introduction FreeBSD 13 is a UNIX-derived operating system renowned for its network stack performance, ZFS integration, and Jail isolation primitives. Setting up install vault for secrets management 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 […]

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Debian 11 — netcdf — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — netcdf — multiple vulnerabilities (20 CVEs) — patch and remediation guide

  • August 31, 2021
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-20005 CVE-2019-20006 CVE-2019-20007 CVE-2019-20198 CVE-2019-20199 CVE-2019-20200 CVE-2019-20201 CVE-2019-20202  +12 more Upstream summary: An issue was discovered in ezXML 0.8.3 through 0.8.6. The function ezxml_decode, while parsing a crafted […]

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Debian 11 — notmuch — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — notmuch — vulnerability — patch and remediation guide

  • August 31, 2021
  • Linux
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🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2012-1103 Upstream summary: emacs/notmuch-mua.el in Notmuch before 0.11.1, when using the Emacs interface, allows user-assisted remote attackers to read arbitrary files via crafted MML tags, which are not […]

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Oracle Linux 8 — gstreamer1-plugins-good — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — gstreamer1-plugins-good — vulnerability — patch and remediation guide (ELSA-2022-7618)

  • August 31, 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-2022-7618 Related CVEs: CVE-2021-3497 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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