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Debian 10 — cyrus-sasl2 — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 10

Debian 10 — cyrus-sasl2 — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 July 2022 Affected versions: Debian 10 (buster) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-19906 CVE-2022-24407 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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Debian 11 — openexr — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

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

🟠 High   ⏱ 15–60 min  Last verified: 25 July 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2009-1720 CVE-2009-1721 CVE-2009-1722 CVE-2017-12596 CVE-2017-14988 CVE-2017-9110 CVE-2017-9111 CVE-2017-9112  +12 more Upstream summary: Multiple integer overflows in OpenEXR 1.2.2 and 1.6.1 allow context-dependent attackers to cause a denial of […]

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Debian 11 — gnutls28 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — gnutls28 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 July 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2011-3389 CVE-2012-0390 CVE-2012-1573 CVE-2012-1663 CVE-2013-0169 CVE-2013-1619 CVE-2014-0092 CVE-2014-1959  +12 more Upstream summary: The SSL protocol, as used in certain configurations in Microsoft Windows and Microsoft Internet Explorer, Mozilla […]

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How to Limit Container Resources with cgroups v1 on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Limit Container Resources with cgroups v1 on Debian 11

Introduction Deploying limit container resources with cgroups v1 on debian 11 on a Debian 11 Bullseye machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites […]

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Oracle Linux 8 — php:7.2 security, bug fix, and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — php:7.2 security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2020-1624)

🟡 Medium   ⏱ 10–30 min  Last verified: 24 July 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-1624 Related CVEs: CVE-2019-11036 CVE-2019-11040 CVE-2019-11039 CVE-2019-11041 CVE-2019-11042 CVE-2019-9023 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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Common Problems 120502

Debian 11: SSH access denied after sshd Match rule change

🔴 Critical   ⏱ 5–30 min  Last verified: 24 July 2022 Affected versions: Debian 11 📖 ~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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AlmaLinux 8 — libxkbcommon — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — libxkbcommon — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALEA-2020:1611 Upstream summary: For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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FreeBSD 13 — py37-ecdsa — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — py37-ecdsa — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 24 July 2022 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: security/py-ecdsa — multiple issues Related CVEs: CVE-2019-14853 CVE-2019-14859 Upstream summary: py-ecdsa developers report: Fix CVE-2019-14853 – possible DoS caused by malformed signature decoding. Fix CVE-2019-14859 – signature malleability caused by […]

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FreeBSD 13 — vim-console — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — vim-console — multiple vulnerabilities (6 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 24 July 2022 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: Vim/NeoVim — Security vulnerability Related CVEs: CVE-2004-1138 CVE-2005-2368 CVE-2007-2953 CVE-2008-2712 CVE-2008-3076 CVE-2016-1248 Upstream summary: Security releases for Vim/NeoVim: Sandbox escape allows for arbitrary code execution. Table of contents Symptom & […]

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