{ "document": { "aggregate_severity": { "text": "High" }, "category": "csaf_vex", "csaf_version": "2.0", "distribution": { "text": "TuxCare License Agreement", "tlp": { "label": "WHITE", "url": "https://www.first.org/tlp/" } }, "lang": "en", "notes": [ { "category": "legal_disclaimer", "text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Cloud Linux Inc. and provide a link to the original.", "title": "Terms of Use" } ], "publisher": { "category": "vendor", "contact_details": "https://tuxcare.com/contact/", "name": "TuxCare", "namespace": "https://tuxcare.com/" }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://security.tuxcare.com/csaf/v2/els_os/amazonlinux2els/vex/2026/cve-2026-41992-els_os-amazonlinux2els.json" } ], "tracking": { "current_release_date": "2026-07-09T09:14:38Z", "generator": { "date": "2026-07-09T09:14:38Z", "engine": { "name": "pyCSAF" } }, "id": "CVE-2026-41992-ELS_OS-AMAZONLINUX2ELS", "initial_release_date": "2026-06-29T12:16:00Z", "revision_history": [ { "date": "2026-06-29T12:16:00Z", "number": "1", "summary": "Initial version" }, { "date": "2026-07-09T09:14:38Z", "number": "2", "summary": "Official Publication" } ], "status": "final", "version": "2" }, "title": "Security update on CVE-2026-41992" }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_name", "name": "Amazon Linux 2", "product": { "name": "Amazon Linux 2", "product_id": "Amazon-Linux-2", "product_identification_helper": { "cpe": "cpe:2.3:o:amazon:amazon_linux:2:*:*:*:*:*:*:*" } } } ], "category": "product_family", "name": "Amazon Linux" }, { "branches": [ { "category": "product_version", "name": "gzip-0:1.5-10.amzn2.0.1.x86_64", "product": { "name": "gzip-0:1.5-10.amzn2.0.1.x86_64", "product_id": "gzip-0:1.5-10.amzn2.0.1.x86_64", "product_identification_helper": { "purl": "pkg:rpm/amazon%20linux/gzip@1.5-10.amzn2.0.1?arch=x86_64" } } } ], "category": "architecture", "name": "x86_64" } ], "category": "vendor", "name": "Amazon Web Services, Inc." }, { "branches": [ { "branches": [ { "category": "product_version", "name": "gzip-0:1.5-10.amzn2.0.1.tuxcare.els1.x86_64", "product": { "name": "gzip-0:1.5-10.amzn2.0.1.tuxcare.els1.x86_64", "product_id": "gzip-0:1.5-10.amzn2.0.1.tuxcare.els1.x86_64", "product_identification_helper": { "purl": "pkg:rpm/tuxcare/gzip@1.5-10.amzn2.0.1.tuxcare.els1?arch=x86_64" } } } ], "category": "architecture", "name": "x86_64" } ], "category": "vendor", "name": "TuxCare" } ], "relationships": [ { "category": "default_component_of", "full_product_name": { "name": "gzip-0:1.5-10.amzn2.0.1.tuxcare.els1.x86_64 as a component of Amazon Linux 2", "product_id": "Amazon-Linux-2:gzip-0:1.5-10.amzn2.0.1.tuxcare.els1.x86_64" }, "product_reference": "gzip-0:1.5-10.amzn2.0.1.tuxcare.els1.x86_64", "relates_to_product_reference": "Amazon-Linux-2" }, { "category": "default_component_of", "full_product_name": { "name": "gzip-0:1.5-10.amzn2.0.1.x86_64 as a component of Amazon Linux 2", "product_id": "Amazon-Linux-2:gzip-0:1.5-10.amzn2.0.1.x86_64" }, "product_reference": "gzip-0:1.5-10.amzn2.0.1.x86_64", "relates_to_product_reference": "Amazon-Linux-2" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-41992", "cwe": { "id": "CWE-126", "name": "Buffer Over-read" }, "notes": [ { "category": "description", "text": "GNU gzip contains a global buffer overflow vulnerability in the LZH decompression logic caused by improper reuse of shared global state between different decompression formats within a single execution. GNU gzip maintains a global array that is shared across the LZ77, LZW, and LZH decompression routines and is not reinitialized between files processed in the same invocation.\nBy decompressing a specially crafted LZW file followed by a specially crafted LZH file in a single gzip -d command, an attacker can poison the shared global state and subsequently trigger an out‑of‑bounds read in the LZH decoder. The LZH decompression logic follows stale values left in the shared array, causing reads past the end of the allocated global buffer.\n\nThis issue has been fixed in the commit 63dbf6b3b9e6e781df1a6a64e609b10e23969681", "title": "Vulnerability description" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "fixed": [ "Amazon-Linux-2:gzip-0:1.5-10.amzn2.0.1.tuxcare.els1.x86_64" ], "known_affected": [ "Amazon-Linux-2:gzip-0:1.5-10.amzn2.0.1.x86_64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://cve.tuxcare.com/els/cve/CVE-2026-41992" }, { "category": "external", "summary": "https://cert.pl/en/posts/2026/04/CVE-2026-41991/", "url": "https://cert.pl/en/posts/2026/04/CVE-2026-41991/" }, { "category": "external", "summary": "https://cgit.git.savannah.gnu.org/cgit/gzip.git/commit/?id=63dbf6b3b9e6e781df1a6a64e609b10e23969681", "url": "https://cgit.git.savannah.gnu.org/cgit/gzip.git/commit/?id=63dbf6b3b9e6e781df1a6a64e609b10e23969681" }, { "category": "external", "summary": "https://www.gnu.org/software/gzip/", "url": "https://www.gnu.org/software/gzip/" } ], "release_date": "2026-06-29T12:16:00Z", "remediations": [ { "category": "vendor_fix", "date": "2026-07-09T09:13:56.922103Z", "details": "Details on how to apply the fix are available at: https://cve.tuxcare.com/els/releases/CLSA-2026:1783588433", "product_ids": [ "Amazon-Linux-2:gzip-0:1.5-10.amzn2.0.1.tuxcare.els1.x86_64" ], "url": "https://cve.tuxcare.com/els/releases/CLSA-2026:1783588433" }, { "category": "none_available", "date": "2026-06-29T12:16:00Z", "details": "Affected", "product_ids": [ "Amazon-Linux-2:gzip-0:1.5-10.amzn2.0.1.x86_64" ] } ], "scores": [ { "cvss_v3": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1" }, "products": [ "Amazon-Linux-2:gzip-0:1.5-10.amzn2.0.1.tuxcare.els1.x86_64", "Amazon-Linux-2:gzip-0:1.5-10.amzn2.0.1.x86_64" ] } ], "threats": [ { "category": "impact", "details": "Important" } ] } ] }