Common Problems

Ubuntu 16.04 — libreoffice — multiple vulnerabilities (16 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — libreoffice — multiple vulnerabilities (16 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 April 2020 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4138-1 Related CVEs: CVE-2019-9854 CVE-2019-9850 CVE-2019-9851 CVE-2019-9852 CVE-2019-9848 CVE-2019-9849 CVE-2018-10119 CVE-2018-10120  +8 more Upstream summary: It was discovered that LibreOffice incorrectly handled embedded scripts in document files. If a user […]

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FreeBSD 12 — percona55-server — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — percona55-server — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 April 2020 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: MySQL Server — Multiple vulerabilities Related CVEs: CVE-2015-3194 CVE-2015-4792 CVE-2015-4802 CVE-2015-4807 CVE-2015-4815 CVE-2015-4826 CVE-2015-4830 CVE-2015-4836  +12 more Upstream summary: Oracle reports: This Critical Patch Update contains 45 new security patches […]

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Common Problems 121095

Debian 10 Disk Full in /var Causes Service Outages

🔴 Critical   ⏱ 5–30 min  Last verified: 24 April 2020 Affected versions: Debian 10 📖 ~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 — roundcube-thunderbird_labels — security advisory — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — roundcube-thunderbird_labels — security advisory — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 24 April 2020 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: roundcube-thunderbird_labels — RCE with custom label titles Upstream summary: The Roundcube project reports: Description: Remote code execution vulnerability in roundcube-thunderbird_labels when tb_label_modify_labels is enabled. Workaround: If you cannot upgrade to […]

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Alpine Linux edge — py3-yaml — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — py3-yaml — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 5.4-r0 📖 ~4 min read  •  Source: Alpine secdb entry — py3-yaml 5.4-r0 Related CVEs: CVE-2020-14343 CVE-2020-1747 Upstream summary: Alpine main repository for vedge ships py3-yaml 5.4-r0 which addresses CVE-2020-14343. Table of contents Symptom & Impact […]

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FreeBSD 12 — libtomcrypt — security advisory — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — libtomcrypt — security advisory — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 24 April 2020 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: libtomcrypt — weak signature scheme with ECC keys Upstream summary: The Secure Science Corporation reports that libtomcrypt is vulnerable to a weak signature scheme. This allows an attacker to create […]

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FreeBSD 12 — unrtf — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — unrtf — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 24 April 2020 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: unrtf — buffer overflow vulnerability Related CVEs: CVE-2004-1297 Upstream summary: Yosef Klein and Limin Wang have found a buffer overflow vulnerability in unrtf that can allow an attacker to execute […]

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Amazon Linux 2 — NetworkManager — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — NetworkManager — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2-2019-1144 Related CVEs: CVE-2018-15688 CVE-2020-10754 Upstream summary: It was discovered that systemd-network does not correctly keep track of a buffer size when constructing DHCPv6 packets. This flaw may lead to […]

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FreeBSD 12 — py35-bleach — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — py35-bleach — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 24 April 2020 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: py-bleach — regular expression denial-of-service Related CVEs: CVE-2020-6817 Upstream summary: Bleach developers reports: bleach.clean behavior parsing style attributes could result in a regular expression denial of service (ReDoS). Calls to […]

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