Common Problems

openSUSE Tumbleweed — file — multiple vulnerabilities (11 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — file — multiple vulnerabilities (11 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2020:0677-1 (see also SUSE bugzilla) Related CVEs: CVE-2019-18218 CVE-2007-1536 CVE-2007-2799 CVE-2012-1571 CVE-2014-3710 CVE-2014-8116 CVE-2014-8117 CVE-2017-1000249  +3 more Upstream summary: cdf_read_property_info in cdf.c in file through 5.37 does not restrict the number of […]

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Debian 9 — xen — multiple vulnerabilities (11 CVEs) — patch and remediation guide — diagnosis and fix on Debian 9

Debian 9 — xen — multiple vulnerabilities (11 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 1 March 2020 Affected versions: Debian 9 (stretch) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2017-10912 CVE-2017-14316 CVE-2017-17563 CVE-2018-8897 CVE-2019-17349 CVE-2018-12891 CVE-2018-3620 CVE-2018-19961  +3 more Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – […]

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Common Problems 118987

UFW Blocks SSH Access After Rule Changes on Ubuntu 14.04

🟡 Medium   ⏱ 5–30 min  Last verified: 29 February 2020 📖 ~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 & Cross-Refs References & Further […]

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Common Problems 118472

Ubuntu 16.04 Swap Not Activating After Reboot

🟡 Medium   ⏱ 5–30 min  Last verified: 29 February 2020 📖 ~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 & Cross-Refs References & Further […]

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

FreeBSD 12 — courier-imap — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 29 February 2020 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: courier-imap — format string vulnerability in debug mode Related CVEs: CVE-2004-0224 CVE-2004-0777 Upstream summary: An iDEFENSE security advisory describes a format string vulnerability that could be exploited when Courier-IMAP is […]

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

FreeBSD 12 — kodi — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 29 February 2020 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: ffmpeg — multiple vulnerabilities Related CVEs: CVE-2015-3395 CVE-2015-3885 CVE-2015-6761 CVE-2015-6818 CVE-2015-6819 CVE-2015-6820 CVE-2015-6821 CVE-2015-6822  +12 more Upstream summary: NVD reports: The ff_dwt_decode function in libavcodec/jpeg2000dwt.c in FFmpeg before 2.8.4 does […]

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Common Problems 115441

systemctl Fails to Start Custom Unit Due to Bad Directive

🟡 Medium   ⏱ 5–30 min  Last verified: 29 February 2020 📖 ~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 & Cross-Refs References & Further […]

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Common Problems 114979

RHEL 8 – chronyd Unsynchronized Time Causes Authentication Failures

🟡 Medium   ⏱ 5–30 min  Last verified: 29 February 2020 📖 ~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 & Cross-Refs References & Further […]

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Ubuntu 16.04 — rake — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — rake — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 29 February 2020 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4295-1 Related CVEs: CVE-2020-8130 Upstream summary: It was discovered that Rake incorrectly handled certain files. An attacker could use this issue to possibly execute arbitrary commands. Table of contents Symptom […]

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Ubuntu 16.04 — dovecot — multiple vulnerabilities (12 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — dovecot — multiple vulnerabilities (12 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 29 February 2020 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4674-1 Related CVEs: CVE-2020-24386 CVE-2020-25275 CVE-2020-12100 CVE-2020-12673 CVE-2020-12674 CVE-2019-11500 CVE-2019-7524 CVE-2019-3814  +4 more Upstream summary: It was discovered that Dovecot incorrectly handled certain imap hibernation commands. A remote authenticated attacker […]

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