ubuntu

Common Problems 118550

Ubuntu 16.04 keyboard layout resets after reboot

🟡 Medium   ⏱ 5–30 min  Last verified: 1 April 2023 📖 ~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 […]

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Ubuntu 22.04 — harfbuzz — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — harfbuzz — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 1 April 2023 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7251-1 Related CVEs: CVE-2023-25193 CVE-2022-33068 Upstream summary: It was discovered that HarfBuzz incorrectly handled shaping certain fonts. A remote attacker could possibly use this issue to cause HarfBuzz to consume […]

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Ubuntu 16.04 — ruby-sinatra — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — ruby-sinatra — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 1 April 2023 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7664-1 Related CVEs: CVE-2022-29970 CVE-2022-45442 Upstream summary: It was discovered that Sinatra incorrectly handled serving static files. An attacker could possibly use this issue to perform local file inclusion, obtaining […]

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Ubuntu 18.04 — fribidi — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — fribidi — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 1 April 2023 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5366-1 Related CVEs: CVE-2022-25308 CVE-2022-25309 CVE-2022-25310 Upstream summary: It was discovered that FriBidi incorrectly handled processing of input strings resulting in memory corruption. An attacker could use this issue to […]

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Ubuntu 22.04 — busybox — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — busybox — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 31 March 2023 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6961-1 Related CVEs: CVE-2022-48174 CVE-2023-42363 CVE-2023-42364 CVE-2023-42365 Upstream summary: It was discovered that BusyBox did not properly validate user input when performing certain arithmetic operations. If a user or automated […]

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Ubuntu 16.04 — insighttoolkit — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — insighttoolkit — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 31 March 2023 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8235-1 Related CVEs: CVE-2022-25236 CVE-2022-25235 Upstream summary: It was discovered that Expat, vendored in ITK incorrectly handled certain files. An attacker could possibly use this issue to cause a crash […]

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Ubuntu 22.04 — linux-lowlatency-hwe-6.2 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — linux-lowlatency-hwe-6.2 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 31 March 2023 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6534-3 Related CVEs: CVE-2023-37453 CVE-2023-3773 CVE-2023-39189 CVE-2023-39192 CVE-2023-39193 CVE-2023-39194 CVE-2023-39198 CVE-2023-42754  +12 more Upstream summary: It was discovered that the USB subsystem in the Linux kernel contained a race condition […]

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How To Install and Configure an SNMP Daemon and Client on Ubuntu 14.04 — step-by-step Linux tutorial on Progressive Robot

How To Install and Configure an SNMP Daemon and Client on Ubuntu 14.04

SNMP is a networking protocol created to as a standard method for managing and monitoring remote systems in your infrastructure. In a previous guide, we discussed the key properties of the protocol, version differences, and how the communication works. In this guide, we will install and configure the SNMP components on two Ubuntu 14.04 servers in order to demonstrate how to use SNMP to manipulate remote systems.

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Ubuntu 18.04 — gss-ntlmssp — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — gss-ntlmssp — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 30 March 2023 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7588-1 Related CVEs: CVE-2023-25567 CVE-2023-25565 CVE-2023-25564 CVE-2023-25563 Upstream summary: Phil Turnbull discovered that GSS NTLMSSP may perform out-of-bounds reads when decoding NTLM fields and target information. An attacker could possibly […]

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