Common Problems

Common Problems 115041

RHEL 8 subscription-manager Repositories Disabled Unexpectedly

🟡 Medium   ⏱ 5–30 min  Last verified: 3 July 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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openSUSE Tumbleweed — libboinc7 — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — libboinc7 — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory SUSE-SR:2009:003 (see also SUSE bugzilla) Related CVEs: CVE-2009-0126 Upstream summary: The decrypt_public function in lib/crypt.cpp in the client in Berkeley Open Infrastructure for Network Computing (BOINC) 6.2.14 and 6.4.5 does not check […]

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

Ubuntu 16.04 — gsl — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 3 July 2020 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6472-1 Related CVEs: CVE-2020-35357 Upstream summary: It was discovered that GNU Scientific Library incorrectly handled certain inputs. If a user or an automated system were tricked into opening a specially […]

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Ubuntu 18.04 — postgresql-common — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — postgresql-common — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 3 July 2020 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4194-1 Related CVEs: CVE-2019-3466 Upstream summary: Rich Mirch discovered that the postgresql-common pg_ctlcluster script incorrectly handled directory creation. A local attacker could possibly use this issue to escalate privileges. Table […]

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openSUSE Tumbleweed — libXfixes3 — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — libXfixes3 — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2013:1097-1 (see also SUSE bugzilla) Related CVEs: CVE-2013-1983 Upstream summary: Integer overflow in X.org libXfixes 5.0 and earlier allows X servers to trigger allocation of insufficient memory and a buffer overflow via […]

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Ubuntu 18.04 — spamassassin — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — spamassassin — multiple vulnerabilities (8 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 3 July 2020 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4899-1 Related CVEs: CVE-2020-1946 CVE-2020-1930 CVE-2020-1931 CVE-2018-11805 CVE-2019-12420 CVE-2017-15705 CVE-2018-11780 CVE-2018-11781 Upstream summary: Damian Lukowski discovered that SpamAssassin incorrectly handled certain CF files. If a user or automated system were […]

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SLES 12 — iproute2 — vulnerability — patch and remediation guide — diagnosis and fix on SLES 12

SLES 12 — iproute2 — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 3 July 2020 Affected versions: SLES 12 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2021:3452-1 (see also SUSE bugzilla) Related CVEs: CVE-2019-20795 Upstream summary: iproute2 before 5.1.0 has a use-after-free in get_netnsid_from_name in ip/ipnetns.c. NOTE: security relevance may be limited to certain uses of setuid that, […]

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Arch Linux — ipmitool — vulnerability — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — ipmitool — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-202102-39 Related CVEs: CVE-2020-5208 Upstream summary: Type: arbitrary code execution. Status: Fixed. Affected: 1.8.18-6. Fixed in: 1.8.18-7. Group: AVG-1596. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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Debian 10 — proftpd-dfsg — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Debian 10

Debian 10 — proftpd-dfsg — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 3 July 2020 Affected versions: Debian 10 (buster) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-12815 CVE-2019-18217 CVE-2020-9273 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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