Source: npm Version: 7.5.2+ds-2 Severity: important Tags: security upstream X-Debbugs-Cc: car...@debian.org, Debian Security Team <t...@security.debian.org>
Hi, The following vulnerability was published for npm. CVE-2021-39135[0]: | `@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 accomplished by extracting package | contents into a project's `node_modules` folder. If the `node_modules` | folder of the root project or any of its dependencies is somehow | replaced with a symbolic link, it could allow Arborist to write | package dependencies to any arbitrary location on the file system. | Note that symbolic links contained within package artifact contents | are filtered out, so another means of creating a `node_modules` | symbolic link would have to be employed. 1. A `preinstall` script | could replace `node_modules` with a symlink. (This is prevented by | using `--ignore-scripts`.) 2. An attacker could supply the target with | a git repository, instructing them to run `npm install --ignore- | scripts` in the root. This may be successful, because `npm install | --ignore-scripts` is typically not capable of making changes outside | of the project directory, so it may be deemed safe. This is patched in | @npmcli/arborist 2.8.2 which is included in npm v7.20.7 and above. For | more information including workarounds please see the referenced GHSA- | gmw6-94gg-2rc2. If you fix the vulnerability please also make sure to include the CVE (Common Vulnerabilities & Exposures) id in your changelog entry. For further information see: [0] https://security-tracker.debian.org/tracker/CVE-2021-39135 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-39135 [1] https://github.com/npm/arborist/security/advisories/GHSA-2h3h-q99f-3fhc Please adjust the affected versions in the BTS as needed. Regards, Salvatore
