Common Problems

Common Problems 115443

RHEL 7 – Legacy service Command Reports Running but Port Is Closed

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

Read more
FreeBSD 12 — linux-c7-libsamplerate — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — linux-c7-libsamplerate — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 29 December 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: libsamplerate — multiple vulnerabilities Related CVEs: CVE-2017-7697 Upstream summary: NVD reports: In libsamplerate before 0.1.9, a buffer over-read occurs in the calc_output_single function in src_sinc.c via a crafted audio file. […]

Read more
Common Problems 112512

Windows Server 2019 – SChannel TLS handshake failures after cipher hardening – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 28 December 2019 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 12 — mod_http2-devel — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — mod_http2-devel — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 28 December 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: Apache httpd — denial of service in HTTP/2 Related CVEs: CVE-2016-8740 Upstream summary: mod_http2 reports: The Apache HTTPD web server (from 2.4.17-2.4.23) did not apply limitations on request headers correctly […]

Read more
FreeBSD 12 — zh-zhcon — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — zh-zhcon — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 28 December 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: zhcon — unauthorized file access Related CVEs: CVE-2005-0072 Upstream summary: Martin Joey Schulze reports: Erik Sjöund discovered that zhcon, a fast console CJK system using the Linux framebuffer, accesses a […]

Read more
FreeBSD 12 — libevhtp — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — libevhtp — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 28 December 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: oniguruma — multiple vulnerabilities Related CVEs: CVE-2017-9224 CVE-2017-9226 CVE-2017-9227 CVE-2017-9228 Upstream summary: the PHP project reports: A stack out-of-bounds read occurs in match_at() during regular expression searching. A logical error […]

Read more
SLES 12 — patch — multiple vulnerabilities (10 CVEs) — patch and remediation guide — diagnosis and fix on SLES 12

SLES 12 — patch — multiple vulnerabilities (10 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 28 December 2019 Affected versions: SLES 12 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2015:1019-1 (see also SUSE bugzilla) Related CVEs: CVE-2015-1396 CVE-2019-13636 CVE-2010-4651 CVE-2015-1196 CVE-2016-10713 CVE-2018-1000156 CVE-2019-20633 CVE-2018-6952  +2 more Upstream summary: A Directory Traversal vulnerability exists in the GNU patch before 2.7.4. A remote […]

Read more
Arch Linux — lib32-icu — vulnerability — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — lib32-icu — vulnerability — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-201711-26 Related CVEs: CVE-2017-14952 Upstream summary: Type: arbitrary code execution. Status: Fixed. Affected: 59.1-1. Fixed in: 60.1-1. Group: AVG-507. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

Read more
Oracle Linux 8 — GraalVM — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — GraalVM — vulnerability — patch and remediation guide (ELSA-2023-12674)

🟠 High   ⏱ 15–60 min  Last verified: 28 December 2019 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-12674 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
Common Problems 120980

Repository URLs Return 404 During apt update

🟡 Medium   ⏱ 5–30 min  Last verified: 27 December 2019 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 & […]

Read more
CHAT