Linux

Common Problems 117935

Ubuntu 18.04 LTS – network interface is down after reboot

🟠 High   ⏱ 5–30 min  Last verified: 5 December 2022 Affected versions: Ubuntu 18.04 LTS Ubuntu 18.04 Ubuntu 18.04.6 📖 ~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 […]

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AlmaLinux 9 — libjpeg-turbo — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on AlmaLinux 9

AlmaLinux 9 — libjpeg-turbo — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 9 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2024:2295 Related CVEs: CVE-2021-29390 CVE-2021-46822 Upstream summary: The libjpeg-turbo packages contain a library of functions for manipulating JPEG images. They also contain simple client programs for accessing the libjpeg functions. These packages […]

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Debian 11 — udns — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — udns — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 5 December 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2008-1447 Upstream summary: The DNS protocol, as implemented in (1) BIND 8 and 9 before 9.5.0-P1, 9.4.2-P1, and 9.3.5-P1; (2) Microsoft DNS in Windows 2000 SP4, XP SP2 […]

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Debian 11 — patch — multiple vulnerabilities (14 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — patch — multiple vulnerabilities (14 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 5 December 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2010-4651 CVE-2014-9637 CVE-2015-1196 CVE-2015-1395 CVE-2015-1396 CVE-2015-1416 CVE-2016-10713 CVE-2018-1000156  +6 more Upstream summary: Directory traversal vulnerability in util.c in GNU patch 2.6.1 and earlier allows user-assisted remote attackers to […]

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Debian 11 — aodh — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — aodh — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 5 December 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2017-12440 Upstream summary: Aodh as packaged in Openstack Ocata and Newton before change-ID I8fd11a7f9fe3c0ea5f9843a89686ac06713b7851 and before Pike-rc1 does not verify that trust IDs belong to the user when […]

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AlmaLinux 8 — rsyslog — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — rsyslog — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2022:4799 Related CVEs: CVE-2022-24903 Upstream summary: The rsyslog packages provide an enhanced, multi-threaded syslog daemon. It supports MySQL, syslog/TCP, RFC 3195, permitted sender lists, filtering on any message part, and fine-grained control […]

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Debian 11 — puppet-module-puppetlabs-stdlib — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — puppet-module-puppetlabs-stdlib — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 5 December 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2015-1029 Upstream summary: The puppetlabs-stdlib module 2.1 through 3.0 and 4.1.0 through 4.5.x before 4.5.1 for Puppet 2.8.8 and earlier allows remote authenticated users to gain privileges or […]

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Ubuntu 16.04 — libgoogle-gson-java — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — libgoogle-gson-java — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 5 December 2022 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6692-1 Related CVEs: CVE-2022-25647 Upstream summary: It was discovered that Gson incorrectly handled deserialization of untrusted input data. If a user or an automated system were tricked into opening a […]

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CentOS Stream 9 — gdb — vulnerability — patch and remediation guide — diagnosis and fix on CentOS Stream 9

CentOS Stream 9 — gdb — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 5 December 2022 Affected versions: CentOS Stream 9 📖 ~4 min read  •  Source: AlmaLinux/RHEL advisory ALSA-2023:6372 Related CVEs: CVE-2021-3826 Upstream summary: The GNU Debugger (GDB) allows users to debug programs written in various programming languages including C, C++, and Fortran. Security Fix(es): * libiberty: Heap/stack buffer […]

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