Linux

Amazon Linux 2023 — openjpeg2 — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2023

Amazon Linux 2023 — openjpeg2 — multiple vulnerabilities (6 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 ALAS2023-2025-1198 Related CVEs: CVE-2025-50952 CVE-2024-56827 CVE-2024-56826 CVE-2023-39328 CVE-2021-29338 CVE-2022-1122 Upstream summary: openjpeg v 2.5.0 was discovered to contain a NULL pointer dereference via the component /openjp2/dwt.c. (CVE-2025-50952) Table of contents […]

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Debian 13 — byobu — vulnerability — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — byobu — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 13 January 2026 Affected versions: Debian 13 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-7306 Upstream summary: Byobu Apport hook may disclose sensitive information since it automatically uploads the local user's .screenrc which may contain private hostnames, usernames and passwords. This issue affects: […]

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Debian 13 — cairo — multiple vulnerabilities (11 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — cairo — multiple vulnerabilities (11 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 13 January 2026 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2009-2044 CVE-2016-3190 CVE-2016-9082 CVE-2017-7475 CVE-2017-9814 CVE-2018-18064 CVE-2018-19876 CVE-2019-6461  +3 more Upstream summary: Mozilla Firefox 3.0.10 and earlier on Linux allows remote attackers to cause a denial of service […]

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Alpine Linux edge — yelp — vulnerability — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — yelp — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 42.2-r5 📖 ~4 min read  •  Source: Alpine secdb entry — yelp 42.2-r5 Related CVEs: CVE-2025-3155 Upstream summary: Alpine community repository for vedge ships yelp 42.2-r5 which addresses CVE-2025-3155. Table of contents Symptom & Impact Environment […]

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Common Problems 113941

RHEL 10 – firewalld default zone blocking application port access – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 13 January 2026 Affected versions: RHEL 10 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention & Hardening Related Errors & […]

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Debian 13 — httpie — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — httpie — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 13 January 2026 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-10751 CVE-2022-0430 CVE-2022-24737 CVE-2023-48052 Upstream summary: All versions of the HTTPie package prior to version 1.0.3 are vulnerable to Open Redirect that allows an attacker to write an […]

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Debian 13 — lucene-solr — multiple vulnerabilities (17 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — lucene-solr — multiple vulnerabilities (17 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 13 January 2026 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2012-6612 CVE-2013-6397 CVE-2013-6407 CVE-2013-6408 CVE-2017-12629 CVE-2017-3163 CVE-2017-3164 CVE-2018-1308  +9 more Upstream summary: The (1) UpdateRequestHandler for XSLT or (2) XPathEntityProcessor in Apache Solr before 4.1 allows remote attackers […]

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Debian 13 — diffoscope — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — diffoscope — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 13 January 2026 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2017-0359 CVE-2024-25711 Upstream summary: diffoscope before 77 writes to arbitrary locations on disk based on the contents of an untrusted archive. Table of contents Symptom & Impact Environment […]

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AlmaLinux 8 — perl-IPC-Cmd — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — perl-IPC-Cmd — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2026:8096 Related CVEs: CVE-2025-40909 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: Perl threads have a […]

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