Common Problems

FreeBSD 13 — ruby25-gems — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — ruby25-gems — multiple vulnerabilities (6 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 10 July 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: RubyGems — multiple vulnerabilities Related CVEs: CVE-2019-8320 CVE-2019-8321 CVE-2019-8322 CVE-2019-8323 CVE-2019-8324 CVE-2019-8325 Upstream summary: RubyGems Security Advisories: CVE-2019-8320: Delete directory using symlink when decompressing tar CVE-2019-8321: Escape sequence injection vulnerability […]

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Common Problems 121639

Debian 9 NTP Sync Not Active and Clock Drift Increases

🟡 Medium   ⏱ 5–30 min  Last verified: 10 July 2021 Affected versions: Debian 9 📖 ~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 13 — py33-djblets — security advisory — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — py33-djblets — security advisory — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 10 July 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: py-djblets — Self-XSS vulnerability Upstream summary: Djblets Release Notes reports: A recently-discovered vulnerability in the datagrid templates allows an attacker to generate a URL to any datagrid page containing malicious […]

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AlmaLinux 8 — initial-setup — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — initial-setup — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALBA-2021:1864 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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Common Problems 117470

Ubuntu 20.04 LTS RAID Array Degraded

🟡 Medium   ⏱ 5–30 min  Last verified: 10 July 2021 📖 ~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 13 — zh-mutt — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — zh-mutt — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 10 July 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: mutt — denial of service via crafted mail message Related CVEs: CVE-2007-2683 CVE-2014-9116 Upstream summary: NVD reports: The write_one_header function in mutt 1.5.23 does not properly handle newline characters at […]

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FreeBSD 13 — zh-xemacs — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — zh-xemacs — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 10 July 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: emacs — movemail format string vulnerability Related CVEs: CVE-2005-0100 Upstream summary: Max Vozeler discovered several format string vulnerabilities in the movemail utility of Emacs. They can be exploited when connecting […]

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Common Problems 115403

RHEL 7 – RPM Database Lock Stops Yum Transactions

🟡 Medium   ⏱ 5–30 min  Last verified: 10 July 2021 📖 ~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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openSUSE Tumbleweed — squirrel — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — squirrel — vulnerability — 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-2023:0080-1 (see also SUSE bugzilla) Related CVEs: CVE-2021-41556 Upstream summary: sqclass.cpp in Squirrel through 2.2.5 and 3.x through 3.1 allows an out-of-bounds read (in the core interpreter) that can lead to Code […]

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Ubuntu 20.04 — ldm — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — ldm — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 10 July 2021 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4533-1 Related CVEs: https://launchpad.net/bugs/1839431 Upstream summary: Veeti Veteläinen discovered that the LTSP Display Manager (ldm) incorrectly handled user logins from unsupported shells. A local attacker could possibly use this issue […]

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