Troubleshooting

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

FreeBSD 12 — phpSysInfo — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 27 December 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: phpsysinfo — url Cross-Site Scripting Related CVEs: CVE-2005-0869 CVE-2005-0870 Upstream summary: Doz reports: A Input passed in the URL to index.php is not properly sanitised before being returned to the […]

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FreeBSD 12 — rsnapshot — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — rsnapshot — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 27 December 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: rsnapshot — local privilege escalation Related CVEs: CVE-2005-1064 Upstream summary: An rsnapshot Advisory reports: The copy_symlink() subroutine in rsnapshot incorrectly changes file ownership on the files pointed to by symlinks, […]

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How to Configure Network QoS with tc on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Configure Network QoS with tc on RHEL 7

How to Configure Network QoS with tc on RHEL 7 Quality of Service (QoS) is the practice of managing network traffic to ensure that critical applications receive the bandwidth and latency guarantees they need. Linux provides a sophisticated traffic control subsystem accessible through the tc (traffic control) command, part of the iproute2 package. With tc, […]

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FreeBSD 12 — apache_fp — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — apache_fp — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 27 December 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: apache — Prevent chunk-size integer overflow on platforms where sizeof(int) < sizeof(long) Related CVEs: CVE-2005-2088 CVE-2005-3352 CVE-2006-3747 Upstream summary: Apache ChangeLog reports: Integer overflow in the ap_proxy_send_fb function in proxy/proxy_util.c […]

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Alpine Linux edge — cfengine — vulnerability — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — cfengine — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 3.12.2-r0 📖 ~4 min read  •  Source: Alpine secdb entry — cfengine 3.12.2-r0 Related CVEs: CVE-2019-9929 Upstream summary: Alpine community repository for vedge ships cfengine 3.12.2-r0 which addresses CVE-2019-9929. Table of contents Symptom & Impact Environment […]

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FreeBSD 12 — XFree86-Server — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — XFree86-Server — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 27 December 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: X11 server — pixmap allocation vulnerability Related CVEs: CVE-2004-0083 CVE-2004-0084 CVE-2004-0106 CVE-2005-2495 Upstream summary: Allocating large pixmaps by a client can trigger an integer overflow in the X server, potentially […]

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Debian 9 — libexif — vulnerability — patch and remediation guide — diagnosis and fix on Debian 9

Debian 9 — libexif — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 27 December 2019 Affected versions: Debian 9 (stretch) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-9278 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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Common Problems 113034

Windows Server 2016 — krbtgt password reset procedure required after suspected golden ticket exposure — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 27 December 2019 Affected versions: Windows Server 2016 📖 ~2 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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How to Sync Time with Chrony on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Sync Time with Chrony on RHEL 7

How to Sync Time with Chrony on RHEL 7 Accurate system time is critical for nearly every networked service on a Linux server. Log correlation, SSL certificate validation, Kerberos authentication, database replication, and distributed systems all depend on clocks that are closely synchronized across machines. Red Hat Enterprise Linux 7 ships with Chrony as the […]

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Ubuntu 14.04 — libtomcrypt — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — libtomcrypt — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 27 December 2019 Affected versions: Ubuntu 14.04 (trusty) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4868-1 Related CVEs: CVE-2019-17362 Upstream summary: It was discovered that LibTomCrypt incorrectly handled certain inputs. An attacker could possibly use this issue to cause a denial of service or read […]

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CHAT