Fix Prevention

How to Install and Configure BIND9 DNS Server on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Install and Configure BIND9 DNS Server on Debian 9

Introduction Debian 9 Stretch is built around the ethos of stability and free software. Setting up install and configure bind9 dns server on debian 9 on Stretch leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Stretch freeze. Follow each step […]

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Ubuntu 14.04 — opencv — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — opencv — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 19 June 2019 Affected versions: Ubuntu 14.04 (trusty) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4818-1 Related CVEs: CVE-2019-15939 CVE-2019-14491 CVE-2017-18009 CVE-2019-14492 CVE-2019-14493 Upstream summary: It was discovered that OpenCV did not properly manage certain objects, leading to a divide-by-zero. If a user were tricked […]

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SLES 15 — libopenjpeg1 — multiple vulnerabilities (12 CVEs) — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — libopenjpeg1 — multiple vulnerabilities (12 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 19 June 2019 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE security advisory (see also SUSE bugzilla) Related CVEs: CVE-2009-5030 CVE-2012-3358 CVE-2012-3535 CVE-2013-1447 CVE-2013-4289 CVE-2013-4290 CVE-2013-6045 CVE-2013-6052  +4 more Upstream summary: The tcd_free_encode function in tcd.c in OpenJPEG 1.3 through 1.5 allows remote attackers […]

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How to Configure Nginx Server Blocks on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Configure Nginx Server Blocks on Debian 9

Introduction Debian 9 Stretch is built around the ethos of stability and free software. Setting up configure nginx server blocks on debian 9 on Stretch leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Stretch freeze. Follow each step carefully and […]

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SLES 15 — grep — vulnerability — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — grep — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 19 June 2019 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE security advisory (see also SUSE bugzilla) Related CVEs: CVE-2015-1345 Upstream summary: The bmexec_trans function in kwset.c in grep 2.19 through 2.21 allows local users to cause a denial of service (out-of-bounds heap read […]

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Common Problems 117938

Ubuntu 18.04 LTS – netplan apply fails due to YAML indentation errors – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 18 June 2019 Affected versions: Ubuntu 18.04 LTS 📖 ~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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FreeBSD 12 — librsvg2-rust — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — librsvg2-rust — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 18 June 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: librsvg2 — multiple vulnerabilities Related CVEs: CVE-2019-20446 Upstream summary: Librsvg2 developers reports: Backport the following fixes from 2.46.x: Librsvg now has limits on the number of loaded XML elements, and […]

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FreeBSD 12 — acme.sh — security advisory — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — acme.sh — security advisory — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 18 June 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: acme.sh — closes potential remote vuln Upstream summary: Neil Pang reports: HiCA was injecting arbitrary code/commands into the certificate obtaining process and acme.sh is running them on the client machine. […]

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FreeBSD 12 — linux-c7-libtiff — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — linux-c7-libtiff — multiple vulnerabilities (8 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 18 June 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: tiff — multiple vulnerabilities Related CVEs: CVE-2015-8870 CVE-2016-5652 CVE-2016-9533 CVE-2016-9534 CVE-2016-9535 CVE-2016-9536 CVE-2016-9537 CVE-2016-9540 Upstream summary: libtiff project reports: Multiple flaws have been discovered in libtiff library and utilities. Table […]

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FreeBSD 12 — apache-worker — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — apache-worker — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 18 June 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: Apache — Insecure LD_LIBRARY_PATH handling Related CVEs: CVE-2011-3192 CVE-2012-0883 Upstream summary: Apache reports: Insecure handling of LD_LIBRARY_PATH was found that could lead to the current working directory to be searched […]

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