Common Problems

Debian 11 — imlib2 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — imlib2 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 4 December 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2004-0802 CVE-2004-1026 CVE-2006-4806 CVE-2006-4807 CVE-2006-4808 CVE-2006-4809 CVE-2008-2426 CVE-2008-5187  +12 more Upstream summary: Buffer overflow in the BMP loader in imlib2 before 1.1.2 allows remote attackers to execute arbitrary […]

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

Debian 11 — checkpw — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 4 December 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2015-0885 Upstream summary: checkpw 1.02 and earlier allows remote attackers to cause a denial of service (infinite loop) via a — (dash dash) in a username. Table of […]

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Ubuntu 20.04 — libxml-security-java — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — libxml-security-java — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 4 December 2021 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5525-1 Related CVEs: CVE-2021-40690 Upstream summary: It was discovered that Apache XML Security for Java incorrectly passed a configuration property when creating specific key elements. This allows an attacker to […]

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Oracle Linux 8 — llvm-toolset:ol8 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — llvm-toolset:ol8 — vulnerability — patch and remediation guide (ELSA-2021-4743)

🟡 Medium   ⏱ 10–30 min  Last verified: 4 December 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-4743 Related CVEs: CVE-2021-42574 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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FreeBSD 13 — py36-gunicorn — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — py36-gunicorn — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 3 December 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: py-gunicorn — CWE-113 vulnerability Related CVEs: CVE-2018-1000164 Upstream summary: Everardo reports: gunicorn version 19.4.5 contains a CWE-113: Improper Neutralization of CRLF Sequences in HTTP Headers vulnerability in process_headers function in […]

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FreeBSD 13 — mariadb-client — multiple vulnerabilities (11 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — mariadb-client — multiple vulnerabilities (11 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 3 December 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: MySQL – Multiple vulnerabilities Related CVEs: CVE-2015-4792 CVE-2015-4802 CVE-2015-4807 CVE-2015-4815 CVE-2015-4826 CVE-2015-4830 CVE-2015-4836 CVE-2015-4858  +3 more Upstream summary: Oracle reports: Critical Patch Update: MySQL Server, version(s) 5.5.45 and prior, 5.6.26 […]

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AlmaLinux 8 — os-prober — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — os-prober — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALBA-2021:4512 Upstream summary: For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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Oracle Linux 8 — .NET Core security and bugfix update — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — .NET Core security and bugfix update

🔴 Critical   ⏱ 15–90 min  Last verified: 3 December 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-2938 Related CVEs: CVE-2020-1147 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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

Debian 11 — pywps — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 3 December 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2021-39371 Upstream summary: An XML external entity (XXE) injection in PyWPS before 4.4.5 allows an attacker to view files on the application server filesystem by assigning a path […]

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