Operations

FreeBSD 13 — linux-c7-libssh — multiple vulnerabilities (9 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — linux-c7-libssh — multiple vulnerabilities (9 CVEs) — patch and remediation guide

  • July 16, 2021
  • BSD
  • Comment off

🟡 Medium   ⏱ 10–30 min  Last verified: 16 July 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: libssh2 — multiple issues Related CVEs: CVE-2019-3855 CVE-2019-3856 CVE-2019-3857 CVE-2019-3858 CVE-2019-3859 CVE-2019-3860 CVE-2019-3861 CVE-2019-3862  +1 more Upstream summary: libssh2 developers report: Defend against possible integer overflows in comp_method_zlib_decomp. Defend against […]

Read more
Common Problems 118622

cloud-init Stuck or Fails on First Boot

🟡 Medium   ⏱ 5–30 min  Last verified: 16 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 […]

Read more
FreeBSD 13 — zh-chitex — security advisory — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — zh-chitex — security advisory — patch and remediation guide

  • July 16, 2021
  • BSD
  • Comment off

🟢 Low   ⏱ 5–15 min  Last verified: 16 July 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: ChiTeX/ChiLaTeX unsafe set-user-id root Upstream summary: Niels Heinen reports that ChiTeX installs set-user-id root executables that invoked system(3) without setting up the environment, trivially allowing local root compromise. Table of […]

Read more
Gentoo Linux — net-irc/inspircd — vulnerability — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — net-irc/inspircd — vulnerability — patch and remediation guide

  • July 16, 2021
  • Linux
  • Comment off

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202107-22 Related CVEs: CVE-2021-33586 Upstream summary: InspIRCd incorrectly handled malformed PONG messages, resulting in access of freed memory. Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage […]

Read more
How to Tune AIX for Oracle Database Performance on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Tune AIX for Oracle Database Performance on IBM AIX 7.1

  • July 16, 2021
  • IBM AIX
  • Comment off

Introduction IBM AIX 7.1 is the latest release of IBM’s enterprise-grade UNIX operating system, running on IBM Power Systems hardware. Known for its reliability, security, and performance in mission-critical environments, AIX 7.1 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to tune aix for oracle database performance on ibm aix […]

Read more
Debian 10 — teeworlds — vulnerability — patch and remediation guide — diagnosis and fix on Debian 10

Debian 10 — teeworlds — vulnerability — patch and remediation guide

  • July 16, 2021
  • Linux
  • Comment off

🟢 Low   ⏱ 5–15 min  Last verified: 16 July 2021 Affected versions: Debian 10 (buster) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2020-12066 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

Read more
Amazon Linux 2 — telnet — vulnerability — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — telnet — vulnerability — patch and remediation guide

  • July 16, 2021
  • Linux
  • Comment off

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2-2020-1422 Related CVEs: CVE-2020-10188 Upstream summary: utility.c in telnetd in netkit telnet through 0.17 allows remote attackers to execute arbitrary code via short writes or urgent data, because of a […]

Read more
Initial Server Setup with IBM AIX 7.2 — step-by-step IBM AIX 7.2 tutorial on Progressive Robot

Initial Server Setup with IBM AIX 7.2

  • July 16, 2021
  • IBM AIX
  • Comment off

Introduction IBM AIX 7.2 is the latest release of IBM’s enterprise-grade UNIX operating system, running on IBM Power Systems hardware. Known for its reliability, security, and performance in mission-critical environments, AIX 7.2 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to server setup with ibm aix 7.2 on IBM AIX […]

Read more
SLES 15 — colord — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — colord — multiple vulnerabilities (2 CVEs) — patch and remediation guide

  • July 16, 2021
  • Linux
  • Comment off

🟡 Medium   ⏱ 10–30 min  Last verified: 16 July 2021 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2022:3496-1 (see also SUSE bugzilla) Related CVEs: CVE-2021-42523 CVE-2011-4349 Upstream summary: There are two Information Disclosure vulnerabilities in colord, and they lie in colord/src/cd-device-db.c and colord/src/cd-profile-db.c separately. They exist because the 'err_msg' […]

Read more
SLES 15 — libtirpc3 — vulnerability — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — libtirpc3 — vulnerability — patch and remediation guide

  • July 16, 2021
  • Linux
  • Comment off

🟠 High   ⏱ 15–60 min  Last verified: 16 July 2021 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-CU-2022:2025-1 (see also SUSE bugzilla) Related CVEs: CVE-2021-46828 Upstream summary: In libtirpc before 1.3.3rc1, remote attackers could exhaust the file descriptors of a process that uses libtirpc because idle TCP connections are […]

Read more

Tags

AIX AlmaLinux Alpine Linux authentication authorization Backup Recovery Boot Startup Cloud Integration Common Problems Cpu Memory Database Debian Debian 11 Debian 12 Bookworm Debian 13 Trixie DNS Firewall Fix Prevention FreeBSD FreeBSD 12 FreeBSD 13 FreeBSD 14 FreeBSD 15 Kernel Drivers Logging Monitoring Lvm Raid NetBSD Networking openSUSE Operations Oracle Linux Oracle Linux 8 Oracle Linux 9 Package Management Performance Proxy Security Hardening SLES Storage Disk Systemd Services Tls Ssl Troubleshooting ubuntu VPN windows server
CHAT