Linux

How to Install Apache Kafka on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Install Apache Kafka on RHEL 9

Apache Kafka is a distributed event streaming platform designed for high-throughput, fault-tolerant, and replayable message streams. Unlike traditional message brokers, Kafka persists messages to disk in ordered, append-only topic logs and retains them for a configurable period (days or weeks). Consumers read messages at their own pace using consumer offsets, and any consumer can re-read […]

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Debian 12 — netplan.io — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — netplan.io — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 30 December 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2022-4968 Upstream summary: netplan leaks the private key of wireguard to local users. Versions after 1.0 are not affected. Table of contents Symptom & Impact Environment & Reproduction […]

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

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

🟠 High   ⏱ 15–60 min  Last verified: 30 December 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2020-12831 CVE-2022-26125 CVE-2022-26126 CVE-2022-26127 CVE-2022-26128 CVE-2022-26129 CVE-2022-36440 CVE-2022-37032  +12 more Upstream summary: An issue was discovered in FRRouting FRR (aka Free Range Routing) through 7.3.1. When using the […]

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Debian 12 — libtool — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — libtool — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 30 December 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2004-0256 CVE-2009-3736 Upstream summary: GNU libtool before 1.5.2, during compile time, allows local users to overwrite arbitrary files via a symlink attack on libtool directories in /tmp. Table […]

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Debian 12 — python-rsa — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — python-rsa — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 30 December 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2016-1494 CVE-2020-13757 CVE-2020-25658 Upstream summary: The verify function in the RSA package for Python (Python-RSA) before 3.3 allows attackers to spoof signatures with a small public exponent via […]

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Alpine Linux 3.19 — alertmanager — vulnerability — patch and remediation guide — diagnosis and fix on Alpine Linux 3.19

Alpine Linux 3.19 — alertmanager — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.19 / fixed in 0.26.0-r0 📖 ~4 min read  •  Source: Alpine secdb entry — alertmanager 0.26.0-r0 Related CVEs: CVE-2023-40577 Upstream summary: Alpine community repository for vv3.19 ships alertmanager 0.26.0-r0 which addresses CVE-2023-40577. Table of contents Symptom & Impact Environment […]

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

Debian 12 — fuzz — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 30 December 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2003-0261 Upstream summary: fuzz 0.6 and earlier creates temporary files insecurely, which could allow local users to gain root privileges. Table of contents Symptom & Impact Environment & […]

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

Debian 12 — lhasa — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 30 December 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2016-2347 Upstream summary: Integer underflow in the decode_level3_header function in lib/lha_file_header.c in Lhasa before 0.3.1 allows remote attackers to execute arbitrary code via a crafted archive. Table of […]

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openSUSE Leap 15.5 — traceroute — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Leap 15.5

openSUSE Leap 15.5 — traceroute — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Leap 15.5 📖 ~4 min read  •  Source: SUSE advisory SUSE-CU-2023:3924-1 (see also SUSE bugzilla) Related CVEs: CVE-2023-46316 Upstream summary: In buc Traceroute 2.0.12 through 2.1.2 before 2.1.3, the wrapper scripts do not properly parse command lines. Table of contents Symptom […]

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Ubuntu 20.04 — procps — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — procps — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 30 December 2023 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6477-1 Related CVEs: CVE-2023-4016 Upstream summary: It was discovered that the procps-ng ps tool incorrectly handled memory. An attacker could possibly use this issue to cause procps-ng to crash, resulting […]

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