Linux

Debian 12 — pcre3 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — pcre3 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 27 June 2024 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2005-2491 CVE-2005-4872 CVE-2006-7225 CVE-2006-7226 CVE-2006-7227 CVE-2006-7228 CVE-2006-7230 CVE-2007-1659  +12 more Upstream summary: Integer overflow in pcre_compile.c in Perl Compatible Regular Expressions (PCRE) before 6.2, as used in multiple […]

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Oracle Linux 9 — xorg-x11-server-Xwayland — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — xorg-x11-server-Xwayland — vulnerability — patch and remediation guide (ELSA-2024-9093)

🟡 Medium   ⏱ 10–30 min  Last verified: 27 June 2024 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2024-9093 Related CVEs: CVE-2024-31080 CVE-2024-31081 CVE-2024-31083 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 Harden the Linux Kernel with sysctl on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Harden the Linux Kernel with sysctl on RHEL 9

The Linux kernel exposes hundreds of tunable parameters through the sysctl interface that control network behavior, memory protection, and file system security. Many of these defaults prioritize compatibility over security. By writing a hardening configuration to /etc/sysctl.d/, you can reduce the kernel attack surface, enable mitigations against common network attacks, and enforce memory safety features […]

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

Debian 12 — libcue — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 26 June 2024 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2023-43641 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 12 — poetry-core — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — poetry-core — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 26 June 2024 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2022-36069 Upstream summary: Poetry is a dependency manager for Python. When handling dependencies that come from a Git repository instead of a registry, Poetry uses various commands, such […]

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

Debian 12 — exo — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 26 June 2024 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2022-32278 Upstream summary: XFCE 4.16 allows attackers to execute arbitrary code because xdg-open can execute a .desktop file on an attacker-controlled FTP server. Table of contents Symptom & […]

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Debian 12 — zoph — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — zoph — multiple vulnerabilities (8 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 26 June 2024 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2006-0402 CVE-2007-3905 CVE-2008-3258 CVE-2008-6837 CVE-2008-6838 CVE-2009-2343 CVE-2014-9235 CVE-2014-9236 Upstream summary: SQL injection vulnerability in Zoph before 0.5pre1 allows remote attackers to execute arbitrary SQL commands. Table of contents […]

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AlmaLinux 9 — bcc — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 9

AlmaLinux 9 — bcc — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 9 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2024:9187 Related CVEs: CVE-2024-2314 Upstream summary: BPF Compiler Collection (BCC) is a toolkit for easier creation of efficient kernel tracing and manipulation programs. BCC uses the extended Berkeley Packet Filter (eBPF) tool. […]

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Debian 11 — librabbitmq — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — librabbitmq — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 26 June 2024 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-18609 CVE-2023-35789 Upstream summary: An issue was discovered in amqp_handle_input in amqp_connection.c in rabbitmq-c 0.9.0. There is an integer overflow that leads to heap memory corruption in the […]

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

Amazon Linux 2023 — python-pymongo — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2023 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2023-2024-614 Related CVEs: CVE-2024-21506 CVE-2024-5629 Upstream summary: Versions of the package pymongo before 4.6.3 are vulnerable to Out-of-bounds Read in the bson module. Using the crafted payload the attacker could […]

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