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Debian 12 — python-h11 — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — python-h11 — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 7 July 2026 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2025-43859 Upstream summary: h11 is a Python implementation of HTTP/1.1. Prior to version 0.16.0, a leniency in h11's parsing of line terminators in chunked-coding message bodies can lead […]

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

Debian 12 — luksmeta — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 7 July 2026 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2025-11568 Upstream summary: A data corruption vulnerability has been identified in the luksmeta utility when used with the LUKS1 disk encryption format. An attacker with the necessary permissions […]

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

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

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 3.8.5-r0 📖 ~4 min read  •  Source: Alpine secdb entry — gnutls 3.8.5-r0 Related CVEs: CVE-2024-28834 CVE-2024-28835 CVE-2023-5981 CVE-2024-0553 CVE-2024-0567 CVE-2026-3832 CVE-2026-3833 CVE-2026-5260  +12 more Upstream summary: Alpine main repository for vedge ships gnutls 3.8.5-r0 which […]

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Ubuntu 24.04 — pyopenssl — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 24.04

Ubuntu 24.04 — pyopenssl — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 7 July 2026 Affected versions: Ubuntu 24.04 (noble) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8115-1 Related CVEs: CVE-2026-27459 CVE-2026-27448 Upstream summary: It was discovered that pyOpenSSL incorrectly handled exceptions in the tlsext_servername callback. This could result in connections being accepted after an exception, contrary […]

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Ubuntu 20.04 — libxmltok — multiple vulnerabilities (19 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — libxmltok — multiple vulnerabilities (19 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 7 July 2026 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8023-1 Related CVEs: CVE-2026-25210 CVE-2026-24515 CVE-2012-1148 CVE-2015-1283 CVE-2016-0718 CVE-2016-4472 CVE-2018-20843 CVE-2019-15903  +11 more Upstream summary: It was discovered that Expat, contained within the xmltok library, incorrectly handled the initialization of […]

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Rocky Linux 9 — tomcat — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Rocky Linux 9

Rocky Linux 9 — tomcat — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Rocky Linux 9 📖 ~4 min read  •  Source: Rocky Linux RXSA RLSA-2025:23049 Related CVEs: CVE-2025-31651 CVE-2025-55752 Upstream summary: Apache Tomcat is a servlet container for the Java Servlet and JavaServer Pages (JSP) technologies. Security Fix(es): * tomcat: Apache Tomcat: Bypass of […]

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SLES 16 — tcpdump — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on SLES 16

SLES 16 — tcpdump — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 7 July 2026 Affected versions: SLES 16 📖 ~4 min read  •  Source: SUSE advisory SUSE-CU-2022:1765-1 (see also SUSE bugzilla) Related CVEs: CVE-2018-16301 CVE-2015-0261 CVE-2015-2153 CVE-2015-2154 CVE-2015-2155 CVE-2016-7922 CVE-2016-7923 CVE-2016-7924  +12 more Upstream summary: The command-line argument parser in tcpdump before 4.99.0 has a buffer overflow in […]

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Amazon Linux 2 — kernel-livepatch-5.10.233-223.887 — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — kernel-livepatch-5.10.233-223.887 — multiple vulnerabilities (8 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 ALAS2LIVEPATCH-2025-216 Related CVEs: CVE-2025-21796 CVE-2025-21647 CVE-2025-21702 CVE-2024-56631 CVE-2023-52760 CVE-2024-36899 CVE-2024-49960 CVE-2024-50143 Upstream summary: In the Linux kernel, the following vulnerability has been resolved: nfsd: clear acl_access/acl_default after releasing them (CVE-2025-21796) […]

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Oracle Linux 10 — grafana — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 10

Oracle Linux 10 — grafana — vulnerability — patch and remediation guide (ELSA-2026-11712)

🟠 High   ⏱ 15–60 min  Last verified: 7 July 2026 Affected versions: Oracle Linux 10 📖 ~4 min read  •  Source: ELSA advisory ELSA-2026-11712 Related CVEs: CVE-2026-32282 CVE-2026-32283 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 — python3.12-setuptools — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — python3.12-setuptools — vulnerability — patch and remediation guide (ELSA-2025-12834)

🟡 Medium   ⏱ 10–30 min  Last verified: 7 July 2026 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2025-12834 Related CVEs: CVE-2025-47273 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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