Logging Monitoring

FreeBSD 13 — ppxp — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — ppxp — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 27 May 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: ppxp — local root exploit Related CVEs: CVE-2005-0392 Upstream summary: A Debian Advisory reports: Jens Steube discovered that ppxp, yet another PPP program, does not release root privileges when opening […]

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Ubuntu 18.04 — fail2ban — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — fail2ban — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 27 May 2021 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5232-1 Related CVEs: CVE-2021-32749 Upstream summary: Jakub Żoczek discovered that certain Fail2ban actions handled whois responses in an insecure way. If Fail2ban was configured to use certain mail actions like […]

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Amazon Linux 2 — python3-pygments — vulnerability — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — python3-pygments — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2-2023-2117 Related CVEs: CVE-2021-27291 Upstream summary: In pygments 1.1+, fixed in 2.7.4, the lexers used to parse programming languages rely heavily on regular expressions. Some of the regular expressions have […]

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Oracle Linux 8 — httpd:2.4 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — httpd:2.4 — vulnerability — patch and remediation guide (ELSA-2022-0891)

🟡 Medium   ⏱ 10–30 min  Last verified: 27 May 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-0891 Related CVEs: CVE-2021-34798 CVE-2021-39275 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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Oracle Linux 8 — olcne — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — olcne — vulnerability — patch and remediation guide (ELSA-2021-9398)

🟠 High   ⏱ 15–60 min  Last verified: 27 May 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-9398 Related CVEs: CVE-2021-28683 CVE-2021-31920 CVE-2021-34824 CVE-2021-29258 CVE-2021-31921 CVE-2021-28682 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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Oracle Linux 8 — grafana — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — grafana — vulnerability — patch and remediation guide (ELSA-2021-3771)

🟠 High   ⏱ 15–60 min  Last verified: 27 May 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-3771 Related CVEs: CVE-2021-39226 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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Amazon Linux 2 — pacemaker — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — pacemaker — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2-2019-1275 Related CVEs: CVE-2018-16877 CVE-2018-16878 CVE-2019-3885 CVE-2020-25654 Upstream summary: A flaw was found in pacemaker. An insufficient verification inflicted preference of uncontrolled processes can lead to DoS. (CVE-2018-16878) A use-after-free […]

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Debian 10 — zeromq3 — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 10

Debian 10 — zeromq3 — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 27 May 2021 Affected versions: Debian 10 (buster) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-13132 CVE-2020-15166 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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Oracle Linux 8 — kernel update — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — kernel update (ELSA-2024-3618)

🟡 Medium   ⏱ 10–30 min  Last verified: 26 May 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2024-3618 Related CVEs: CVE-2021-46934 CVE-2023-6240 CVE-2023-52595 CVE-2021-47055 CVE-2021-47185 CVE-2022-48669 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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AlmaLinux 8 — cairomm — multiple vulnerabilities (12 CVEs) — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — cairomm — multiple vulnerabilities (12 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-2021:1586 Related CVEs: CVE-2019-13012 CVE-2020-13543 CVE-2020-13584 CVE-2020-16125 CVE-2020-9948 CVE-2020-9951 CVE-2020-9983 CVE-2021-1817  +4 more Upstream summary: GNOME is the default desktop environment of AlmaLinux. The following packages have been upgraded to a later […]

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