Common Problems

Debian 11 — libxerces2-java — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — libxerces2-java — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 18 April 2023 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2009-2625 CVE-2012-0881 CVE-2022-23437 Upstream summary: XMLScanner.java in Apache Xerces2 Java, as used in Sun Java Runtime Environment (JRE) in JDK and JRE 6 before Update 15 and JDK […]

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openSUSE Tumbleweed — plantuml — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — plantuml — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE security advisory (see also SUSE bugzilla) Related CVEs: CVE-2022-1379 CVE-2022-1231 Upstream summary: URL Restriction Bypass in GitHub repository plantuml/plantuml prior to V1.2022.5. An attacker can abuse this to bypass URL restrictions that are […]

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Debian 11 — golang-golang-x-text — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — golang-golang-x-text — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 18 April 2023 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2020-14040 CVE-2020-28851 CVE-2020-28852 CVE-2021-38561 CVE-2022-32149 Upstream summary: The x/text package before 0.3.3 for Go has a vulnerability in encoding/unicode that could lead to the UTF-16 decoder entering an […]

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Ubuntu 20.04 — rsyslog — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — rsyslog — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 18 April 2023 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5404-1 Related CVEs: CVE-2022-24903 Upstream summary: Pieter Agten discovered that Rsyslog incorrectly handled certain requests. An attacker could possibly use this issue to cause a crash. Table of contents Symptom […]

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Gentoo Linux — dev-ruby/rack — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — dev-ruby/rack — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202310-18 Related CVEs: CVE-2022-30122 CVE-2022-30123 Upstream summary: Multiple vulnerabilities have been discovered in Rack. Please review the CVE identifiers referenced below for details. Table of contents Symptom & Impact Environment & Reproduction […]

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Ubuntu 22.04 — e2fsprogs — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — e2fsprogs — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 18 April 2023 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5464-1 Related CVEs: CVE-2022-1304 Upstream summary: Nils Bars discovered that e2fsprogs incorrectly handled certain file systems. A local attacker could use this issue with a crafted file system image to […]

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Ubuntu 20.04 — postfixadmin — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — postfixadmin — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 18 April 2023 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6550-1 Related CVEs: CVE-2022-29221 CVE-2022-31129 CVE-2023-28447 Upstream summary: It was discovered that Smarty, that is integrated in the PostfixAdmin code, was not properly sanitizing user input when generating templates. An […]

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Gentoo Linux — mail-mta/exim — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — mail-mta/exim — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202402-18 Related CVEs: CVE-2023-42114 CVE-2023-42115 CVE-2023-42116 CVE-2023-42117 CVE-2023-42119 CVE-2023-51766 CVE-2020-28007 CVE-2020-28008  +12 more Upstream summary: Multiple vulnerabilities have been discovered in Exim. Please review the CVE identifiers referenced below for details. Table […]

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Oracle Linux 9 — ruby:3.1 security, bug fix, and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — ruby:3.1 security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2024-3668)

🟡 Medium   ⏱ 10–30 min  Last verified: 17 April 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2024-3668 Related CVEs: CVE-2024-27280 CVE-2024-27281 CVE-2024-27282 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification […]

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AlmaLinux 8 — qt5 — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — qt5 — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2022:7482 Related CVEs: CVE-2022-25255 CVE-2021-3481 CVE-2018-19869 CVE-2018-19871 CVE-2018-19872 Upstream summary: The Qt5 libraries packages provide Qt 5, version 5 of the Qt cross-platform application framework. The following packages have been upgraded to […]

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