Linux

Common Problems 115900

Ubuntu 26.04 LTS Repository Release File Not Valid Yet

🟠 High   ⏱ 5–30 min  Last verified: 1 June 2026 Affected versions: Ubuntu 26.04 LTS 📖 ~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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Amazon Linux 2023 — polkit — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2023

Amazon Linux 2023 — polkit — multiple vulnerabilities (5 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 ALAS2023-2024-508 Related CVEs: CVE-2023-7104 CVE-2021-4034 CVE-2021-4115 CVE-2026-4897 CVE-2025-7519 Upstream summary: A vulnerability was found in SQLite SQLite3 up to 3.43.0 and classified as critical. This issue affects the function sessionReadRecord […]

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

Debian 13 — jackson-core — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 1 June 2026 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2025-49128 CVE-2025-52999 Upstream summary: Jackson-core contains core low-level incremental ("streaming") parser and generator abstractions used by Jackson Data Processor. Starting in version 2.0.0 and prior to version 2.13.0, […]

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Amazon Linux 2023 — javapackages-bootstrap — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2023

Amazon Linux 2023 — javapackages-bootstrap — multiple vulnerabilities (7 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 ALAS2023-2026-1581 Related CVEs: CVE-2025-67030 CVE-2025-48734 CVE-2023-37460 CVE-2024-25710 CVE-2026-24400 CVE-2024-47554 CVE-2025-48924 Upstream summary: Directory Traversal vulnerability in the extractFile method of org.codehaus.plexus.util.Expand in plexus-utils before 6d780b3378829318ba5c2d29547e0012d5b29642. This allows an attacker to […]

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Amazon Linux 2023 — cups — multiple vulnerabilities (19 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2023

Amazon Linux 2023 — cups — multiple vulnerabilities (19 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 ALAS2023-2026-1635 Related CVEs: CVE-2026-34978 CVE-2026-34979 CVE-2026-34980 CVE-2026-34990 CVE-2026-39314 CVE-2026-39316 CVE-2022-26691 CVE-2026-27447  +11 more Upstream summary: OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. […]

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Amazon Linux 2023 — python3.12-pip — multiple vulnerabilities (9 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2023

Amazon Linux 2023 — python3.12-pip — multiple vulnerabilities (9 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 ALAS2023-2026-1666 Related CVEs: CVE-2026-3219 CVE-2026-6357 CVE-2026-21441 CVE-2025-66418 CVE-2025-66471 CVE-2025-50181 CVE-2024-47081 CVE-2024-35195  +1 more Upstream summary: pip handles concatenated tar and ZIP files as ZIP files regardless of filename or whether […]

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Debian 13 — libnl3 — vulnerability — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — libnl3 — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 1 June 2026 Affected versions: Debian 13 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2017-0553 Upstream summary: An elevation of privilege vulnerability in libnl could enable a local malicious application to execute arbitrary code within the context of the Wi-Fi service. This issue […]

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Debian 11 — python-ecdsa — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — python-ecdsa — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 1 June 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-14853 CVE-2019-14859 CVE-2024-23342 CVE-2026-33936 Upstream summary: An error-handling flaw was found in python-ecdsa before version 0.13.3. During signature decoding, malformed DER signatures could raise unexpected exceptions (or no […]

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Debian 11 — ruby-bcrypt — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — ruby-bcrypt — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 1 June 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2026-33306 Upstream summary: bcrypt-ruby is a Ruby binding for the OpenBSD bcrypt() password hashing algorithm. Prior to version 3.1.22, an integer overflow in the Java BCrypt implementation for […]

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