April 2022 - Page 37 of 70

Debian 11 — ircd-irc2 — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — ircd-irc2 — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2003-0864 Upstream summary: Buffer overflow in m_join in channel.c for IRCnet IRCD 2.10.x to 2.10.3p3 allows remote attackers to cause a denial of service. Table of contents Symptom […]

Read more
Debian 11 — hexchat — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — hexchat — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2013-7449 CVE-2016-2087 CVE-2016-2233 Upstream summary: The ssl_do_connect function in common/server.c in HexChat before 2.10.2, XChat, and XChat-GNOME does not verify that the server hostname matches a domain name […]

Read more
Debian 11 — jupyter-notebook — multiple vulnerabilities (11 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — jupyter-notebook — multiple vulnerabilities (11 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2018-19351 CVE-2018-19352 CVE-2018-21030 CVE-2018-8768 CVE-2019-10255 CVE-2019-9644 CVE-2020-26215 CVE-2021-32798  +3 more Upstream summary: Jupyter Notebook before 5.7.1 allows XSS via an untrusted notebook because nbconvert responses are considered to […]

Read more
How to Configure Percona XtraBackup on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Configure Percona XtraBackup on Debian 11

Introduction This guide explains how to Configure Percona XtraBackup on Debian 11 on Debian 11 Bullseye. Debian Bullseye uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 11 install with the standard […]

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

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

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2022:1276-1 (see also SUSE bugzilla) Related CVEs: CVE-2022-26495 CVE-2022-26496 Upstream summary: In nbd-server in nbd before 3.24, there is an integer overflow with a resultant heap-based buffer overflow. A value of 0xffffffff […]

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

Oracle Linux 8 — poppler — vulnerability — patch and remediation guide (ELSA-2023-2810)

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-2810 Related CVEs: CVE-2022-38784 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
Oracle Linux 8 — python3 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — python3 — vulnerability — patch and remediation guide (ELSA-2023-0833)

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-0833 Related CVEs: CVE-2021-28861 CVE-2022-45061 CVE-2020-10735 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification […]

Read more
How to Configure Hyper-V Resource Metering on Windows Server 2016 — step-by-step Windows Server 2016 tutorial on Progressive Robot

How to Configure Hyper-V Resource Metering on Windows Server 2016

How to Configure Windows Server 2016 Hyper-V Resource Metering Hyper-V Resource Metering in Windows Server 2016 provides a built-in mechanism for tracking the resource consumption of virtual machines. It allows administrators and service providers to measure CPU utilisation, memory usage, network traffic, and disk I/O on a per-VM basis. The collected data can be used […]

Read more
Common Problems 120509

Debian 11 SSH Login Fails with Permission Denied (publickey)

🟠 High   ⏱ 5–30 min  Last verified: 19 May 2026 Affected versions: Debian 11 📖 ~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