Common Problems

Common Problems 114911

RHEL 8 firewalld Blocking Application Port Despite Service Running

🟡 Medium   ⏱ 5–30 min  Last verified: 19 November 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 […]

Read more
Common Problems 112545

Windows Server 2019 — .NET Framework 4.8 install fails or repair leaves applications broken — Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 19 November 2021 Affected versions: Windows Server 2019 📖 ~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 […]

Read more
FreeBSD 13 — suphp — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — suphp — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 19 November 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: suPHP — Privilege escalation Related CVEs: CVE-2008-1614 Upstream summary: suPHP developer Sebastian Marsching reports: When the suPHP_PHPPath was set, mod_suphp would use the specified PHP executable to pretty-print PHP source […]

Read more
Debian 11 — changetrack — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — changetrack — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 19 November 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2009-3233 Upstream summary: changetrack 4.3 allows local users to execute arbitrary commands via CRLF sequences and shell metacharacters in a filename in a directory that is checked by […]

Read more
openSUSE Tumbleweed — python38-numba — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — python38-numba — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2022:0134-1 (see also SUSE bugzilla) Related CVEs: CVE-2021-33430 Upstream summary: A Buffer Overflow vulnerability exists in NumPy 1.9.x in the PyArray_NewFromDescr_int function of ctors.c when specifying arrays of large dimensions (over 32) […]

Read more
FreeBSD 13 — amaya — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — amaya — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 19 November 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: amaya — multiple buffer overflow vulnerabilities Related CVEs: CVE-2006-1900 CVE-2008-5282 CVE-2009-0323 Upstream summary: Secunia reports: A boundary error when processing "div" HTML tags can be exploited to cause a stack-based […]

Read more
Debian 11 — libapache2-mod-auth-openid — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — libapache2-mod-auth-openid — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 19 November 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2012-2760 Upstream summary: mod_auth_openid before 0.7 for Apache uses world-readable permissions for /tmp/mod_auth_openid.db, which allows local users to obtain session ids. Table of contents Symptom & Impact Environment […]

Read more
SLES 15 — stunnel — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — stunnel — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 19 November 2021 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2013:0709-1 (see also SUSE bugzilla) Related CVEs: CVE-2013-1762 CVE-2021-20230 CVE-2015-3644 CVE-2011-2940 CVE-2014-0016 Upstream summary: stunnel 4.21 through 4.54, when CONNECT protocol negotiation and NTLM authentication are enabled, does not correctly perform integer […]

Read more
Arch Linux — virtualbox — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — virtualbox — multiple vulnerabilities (20 CVEs) — 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-202110-3 Related CVEs: CVE-2021-35545 CVE-2021-35542 CVE-2021-35540 CVE-2021-35538 CVE-2021-2475 CVE-2021-2454 CVE-2021-2443 CVE-2021-2442  +12 more Upstream summary: Type: multiple issues. Status: Fixed. Affected: 6.1.26-2. Fixed in: 6.1.28-1. Group: AVG-2476. Table of contents […]

Read more
Oracle Linux 8 — Graphics controller requirements for an installation on an Oracle VM VirtualBox guest — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — Graphics controller requirements for an installation on an Oracle VM VirtualBox guest

🟠 High   ⏱ 5–30 min  Last verified: 18 November 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: Oracle Bug 30004543 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 […]

Read more
CHAT