Linux

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

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

🟡 Medium   ⏱ 10–30 min  Last verified: 30 December 2023 Affected versions: CentOS Stream 9 📖 ~4 min read  •  Source: AlmaLinux/RHEL advisory ALSA-2024:2228 Related CVEs: CVE-2023-47038 Upstream summary: Perl is a high-level programming language that is commonly used for system administration utilities and web programming. Security Fix(es): * perl: Write past buffer end […]

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Alpine Linux 3.18 — icinga2 — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux 3.18

Alpine Linux 3.18 — icinga2 — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.18 / fixed in 2.13.1-r0 📖 ~4 min read  •  Source: Alpine secdb entry — icinga2 2.13.1-r0 Related CVEs: CVE-2021-37698 CVE-2020-14001 Upstream summary: Alpine community repository for vv3.18 ships icinga2 2.13.1-r0 which addresses CVE-2021-37698. Table of contents Symptom & Impact […]

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Oracle Linux 9 — varnish — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — varnish — vulnerability — patch and remediation guide (ELSA-2022-8643)

🟠 High   ⏱ 15–60 min  Last verified: 30 December 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-8643 Related CVEs: CVE-2022-45060 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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Oracle Linux 8 — sudo — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — sudo — vulnerability — patch and remediation guide (ELSA-2024-0811)

🟡 Medium   ⏱ 10–30 min  Last verified: 30 December 2023 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2024-0811 Related CVEs: CVE-2023-28487 CVE-2023-28486 CVE-2023-42465 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 9 — keylime — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — keylime — vulnerability — patch and remediation guide (ELSA-2023-5080)

🟡 Medium   ⏱ 10–30 min  Last verified: 30 December 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-5080 Related CVEs: CVE-2023-38201 CVE-2023-38200 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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Alpine Linux 3.18 — openjdk15 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux 3.18

Alpine Linux 3.18 — openjdk15 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.18 / fixed in 15.0.8_p4-r0 📖 ~4 min read  •  Source: Alpine secdb entry — openjdk15 15.0.8_p4-r0 Related CVEs: CVE-2022-21540 CVE-2022-21541 CVE-2022-21549 CVE-2022-25647 CVE-2022-34169 CVE-2022-21426 CVE-2022-21449 CVE-2022-21434  +12 more Upstream summary: Alpine community repository for vv3.18 ships openjdk15 15.0.8_p4-r0 which […]

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Amazon Linux 2023 — libeconf — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2023

Amazon Linux 2023 — libeconf — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2023 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2023-2023-227 Related CVEs: CVE-2023-22652 CVE-2023-32181 Upstream summary: A Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in openSUSE libeconf leads to DoS via malformed config files. This […]

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Alpine Linux edge — openjdk17 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — openjdk17 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 17.0.9_p8-r0 📖 ~4 min read  •  Source: Alpine secdb entry — openjdk17 17.0.9_p8-r0 Related CVEs: CVE-2023-30589 CVE-2023-22081 CVE-2023-22025 CVE-2023-22041 CVE-2023-25193 CVE-2023-22044 CVE-2023-22045 CVE-2023-22049  +12 more Upstream summary: Alpine community repository for vedge ships openjdk17 17.0.9_p8-r0 which […]

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Debian 12 — chasquid — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — chasquid — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 29 December 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2023-52354 Upstream summary: chasquid before 1.13 allows SMTP smuggling because LF-terminated lines are accepted. Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage […]

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openSUSE Tumbleweed — libupb37 — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — libupb37 — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2024:0573-1 (see also SUSE bugzilla) Related CVEs: CVE-2023-32731 CVE-2023-4785 CVE-2023-32732 Upstream summary: When gRPC HTTP2 stack raised a header size exceeded error, it skipped parsing the rest of the HPACK frame. This […]

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