{ "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_alt_nodejs/el6/vex/2021/cve-2021-39134-els_alt_nodejs-el6.json" } ], "tracking": { "current_release_date": "2026-09-08T12:38:26Z", "generator": { "date": "2026-09-08T12:38:26Z", "engine": { "name": "pyCSAF" } }, "id": "CVE-2021-39134-ELS_ALT_NODEJS-EL6", "initial_release_date": "2021-08-31T17:15:00Z", "revision_history": [ { "date": "2021-08-31T17:15:00Z", "number": "1", "summary": "Initial version" }, { "date": "2026-09-02T08:24:42Z", "number": "2", "summary": "Official Publication" }, { "date": "2026-09-03T10:55:52Z", "number": "3", "summary": "Update document" }, { "date": "2026-09-08T12:38:26Z", "number": "4", "summary": "Update document" } ], "status": "final", "version": "4" }, "title": "Security update on CVE-2021-39134" }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_name", "name": "Community Enterprise Operating System 6", "product": { "name": "Community Enterprise Operating System 6", "product_id": "CentOS-6", "product_identification_helper": { "cpe": "cpe:2.3:o:centos:centos:6:*:*:*:*:*:*:*" } } } ], "category": "product_family", "name": "Community Enterprise Operating System" } ], "category": "vendor", "name": "Cloud Linux Software, Inc." }, { "branches": [ { "branches": [ { "category": "product_version", "name": "alt-nodejs14-nodejs-docs-0:14.21.3-32.el6.noarch", "product": { "name": "alt-nodejs14-nodejs-docs-0:14.21.3-32.el6.noarch", "product_id": "alt-nodejs14-nodejs-docs-0:14.21.3-32.el6.noarch", "product_identification_helper": { "purl": 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"product_reference": "alt-nodejs12-nodejs-devel-0:12.22.12-32.el6.x86_64", "relates_to_product_reference": "CentOS-6" }, { "category": "default_component_of", "full_product_name": { "name": "alt-nodejs12-nodejs-devel-0:12.22.12-31.el6.x86_64 as a component of Community Enterprise Operating System 6", "product_id": "CentOS-6:alt-nodejs12-nodejs-devel-0:12.22.12-31.el6.x86_64" }, "product_reference": "alt-nodejs12-nodejs-devel-0:12.22.12-31.el6.x86_64", "relates_to_product_reference": "CentOS-6" }, { "category": "default_component_of", "full_product_name": { "name": "alt-nodejs12-nodejs-docs-0:12.22.12-31.el6.noarch as a component of Community Enterprise Operating System 6", "product_id": "CentOS-6:alt-nodejs12-nodejs-docs-0:12.22.12-31.el6.noarch" }, "product_reference": "alt-nodejs12-nodejs-docs-0:12.22.12-31.el6.noarch", "relates_to_product_reference": "CentOS-6" }, { "category": "default_component_of", "full_product_name": { "name": "alt-nodejs12-nodejs-docs-0:12.22.12-32.el6.noarch as a component of Community Enterprise Operating System 6", "product_id": "CentOS-6:alt-nodejs12-nodejs-docs-0:12.22.12-32.el6.noarch" }, "product_reference": "alt-nodejs12-nodejs-docs-0:12.22.12-32.el6.noarch", "relates_to_product_reference": "CentOS-6" } ] }, "vulnerabilities": [ { "cve": "CVE-2021-39134", "cwe": { "id": "CWE-61", "name": "UNIX Symbolic Link (Symlink) Following" }, "notes": [ { "category": "description", "text": "`@npmcli/arborist`, the library that calculates dependency trees and manages the `node_modules` folder hierarchy for the npm command line interface, aims to guarantee that package dependency contracts will be met, and the extraction of package contents will always be performed into the expected folder. This is, in part, accomplished by resolving dependency specifiers defined in `package.json` manifests for dependencies with a specific name, and nesting folders to resolve conflicting dependencies. When multiple dependencies differ only in the case of their name, Arborist's internal data structure saw them as separate items that could coexist within the same level in the `node_modules` hierarchy. However, on case-insensitive file systems (such as macOS and Windows), this is not the case. Combined with a symlink dependency such as `file:/some/path`, this allowed an attacker to create a situation in which arbitrary contents could be written to any location on the filesystem. For example, a package `pwn-a` could define a dependency in their `package.json` file such as `\"foo\": \"file:/some/path\"`. Another package, `pwn-b` could define a dependency such as `FOO: \"file:foo.tgz\"`. On case-insensitive file systems, if `pwn-a` was installed, and then `pwn-b` was installed afterwards, the contents of `foo.tgz` would be written to `/some/path`, and any existing contents of `/some/path` would be removed. Anyone using npm v7.20.6 or earlier on a case-insensitive filesystem is potentially affected. This is patched in @npmcli/arborist 2.8.2 which is included in npm v7.20.7 and above.", "title": "Vulnerability description" }, { "category": "other", "text": "TuxCare has assessed that this vulnerability does not impact any currently supported TuxCare products. This evaluation may change as new information becomes available. For additional details regarding this vulnerability and affected products, refer to the provided references.", "title": "Statement" } ], "product_status": { "known_not_affected": [ "CentOS-6:alt-nodejs12-nodejs-0:12.22.12-29.el6.x86_64", "CentOS-6:alt-nodejs12-nodejs-0:12.22.12-31.el6.x86_64", "CentOS-6:alt-nodejs12-nodejs-0:12.22.12-32.el6.x86_64", "CentOS-6:alt-nodejs12-nodejs-devel-0:12.22.12-29.el6.x86_64", "CentOS-6:alt-nodejs12-nodejs-devel-0:12.22.12-31.el6.x86_64", "CentOS-6:alt-nodejs12-nodejs-devel-0:12.22.12-32.el6.x86_64", "CentOS-6:alt-nodejs12-nodejs-docs-0:12.22.12-29.el6.noarch", "CentOS-6:alt-nodejs12-nodejs-docs-0:12.22.12-31.el6.noarch", "CentOS-6:alt-nodejs12-nodejs-docs-0:12.22.12-32.el6.noarch", "CentOS-6:alt-nodejs12-npm-1:6.14.16-12.22.12.29.el6.x86_64", "CentOS-6:alt-nodejs12-npm-1:6.14.16-12.22.12.31.el6.x86_64", "CentOS-6:alt-nodejs12-npm-1:6.14.16-12.22.12.32.el6.x86_64", "CentOS-6:alt-nodejs14-nodejs-0:14.21.3-32.el6.x86_64", "CentOS-6:alt-nodejs14-nodejs-devel-0:14.21.3-32.el6.x86_64", "CentOS-6:alt-nodejs14-nodejs-docs-0:14.21.3-32.el6.noarch", "CentOS-6:alt-nodejs14-npm-1:6.14.18-14.21.3.32.el6.x86_64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://cve.tuxcare.com/els-alt-nodejs/cve/CVE-2021-39134" }, { "category": "external", "summary": "https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf", "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf" }, { "category": "external", "summary": "https://github.com/npm/arborist/security/advisories/GHSA-2h3h-q99f-3fhc", "url": "https://github.com/npm/arborist/security/advisories/GHSA-2h3h-q99f-3fhc" }, { "category": "external", "summary": "https://www.npmjs.com/package/%40npmcli/arborist", "url": "https://www.npmjs.com/package/%40npmcli/arborist" }, { "category": "external", "summary": "https://www.oracle.com/security-alerts/cpuoct2021.html", "url": "https://www.oracle.com/security-alerts/cpuoct2021.html" } ], "release_date": "2021-08-31T17:15:00Z", "threats": [ { "category": "impact", "details": "Important" }, { "category": "impact", "date": "2026-08-27T13:05:20.723722Z", "details": "important", "product_ids": [ "CentOS-6:alt-nodejs12-nodejs-0:12.22.12-29.el6.x86_64", "CentOS-6:alt-nodejs12-nodejs-0:12.22.12-31.el6.x86_64", "CentOS-6:alt-nodejs12-nodejs-0:12.22.12-32.el6.x86_64", "CentOS-6:alt-nodejs12-nodejs-devel-0:12.22.12-29.el6.x86_64", "CentOS-6:alt-nodejs12-nodejs-devel-0:12.22.12-31.el6.x86_64", "CentOS-6:alt-nodejs12-nodejs-devel-0:12.22.12-32.el6.x86_64", "CentOS-6:alt-nodejs12-nodejs-docs-0:12.22.12-29.el6.noarch", "CentOS-6:alt-nodejs12-nodejs-docs-0:12.22.12-31.el6.noarch", "CentOS-6:alt-nodejs12-nodejs-docs-0:12.22.12-32.el6.noarch", "CentOS-6:alt-nodejs12-npm-1:6.14.16-12.22.12.29.el6.x86_64", "CentOS-6:alt-nodejs12-npm-1:6.14.16-12.22.12.31.el6.x86_64", "CentOS-6:alt-nodejs12-npm-1:6.14.16-12.22.12.32.el6.x86_64", "CentOS-6:alt-nodejs14-nodejs-0:14.21.3-32.el6.x86_64", "CentOS-6:alt-nodejs14-nodejs-devel-0:14.21.3-32.el6.x86_64", "CentOS-6:alt-nodejs14-nodejs-docs-0:14.21.3-32.el6.noarch", "CentOS-6:alt-nodejs14-npm-1:6.14.18-14.21.3.32.el6.x86_64" ] } ] } ] }