Systemd Services

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

Oracle Linux 8 — libvncserver — vulnerability — patch and remediation guide (ELSA-2021-1811)

🟡 Medium   ⏱ 10–30 min  Last verified: 5 June 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-1811 Related CVEs: CVE-2020-14397 CVE-2020-25708 CVE-2019-20839 CVE-2018-21247 CVE-2020-14405 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative […]

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Gentoo Linux — net-mail/fetchmail — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — net-mail/fetchmail — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202209-14 Related CVEs: CVE-2021-36386 CVE-2021-39272 Upstream summary: Multiple vulnerabilities have been discovered in Fetchmail. Please review the CVE identifiers referenced below for details. Table of contents Symptom & Impact Environment & Reproduction […]

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SLES 12 — python-M2Crypto — vulnerability — patch and remediation guide — diagnosis and fix on SLES 12

SLES 12 — python-M2Crypto — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 5 June 2021 Affected versions: SLES 12 📖 ~4 min read  •  Source: SUSE advisory SUSE-FU-2024:1448-1 (see also SUSE bugzilla) Related CVEs: CVE-2020-25657 Upstream summary: A flaw was found in all released versions of m2crypto, where they are vulnerable to Bleichenbacher timing attacks in the RSA decryption […]

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Oracle Linux 8 — kernel — security and stability fixes — required update — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — kernel — security and stability fixes — required update (ELSA-2021-2168)

🟠 High   ⏱ 15–60 min  Last verified: 4 June 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-2168 Related CVEs: CVE-2021-3543 CVE-2021-3501 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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How to Configure Jail Networking on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Configure Jail Networking on FreeBSD 13

Introduction How to Configure Jail Networking on FreeBSD 13 is a core administration task for any FreeBSD 13 server operator. FreeBSD 13 ships with the 15.0-RELEASE kernel, ZFS as the default root filesystem, Capsicum capability sandboxing improvements, and an updated ports tree. Unlike Linux distributions, FreeBSD uses rc(8) for service management, pf for packet filtering, […]

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FreeBSD 13 — mod_dosevasive — security advisory — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — mod_dosevasive — security advisory — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 4 June 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: mod_dosevasive — insecure temporary file creation Upstream summary: An LSS Security Advisory reports: When a denial of service attack is detected, mod_dosevasive will, among other things, create a temporary file […]

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

FreeBSD 13 — urban — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 4 June 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: urban — stack overflow vulnerabilities Related CVEs: CVE-2005-2864 Upstream summary: Several filename-related stack overflow bugs allow a local attacker to elevate its privileges to the games group, since urban is […]

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