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CVE-2021-37712

Status Candidate

Overview

The npm package "tar" (aka node-tar) before versions 4.4.18, 5.0.10, and 6.1.9 has an arbitrary file creation/overwrite and arbitrary code execution vulnerability. node-tar aims to guarantee that any file whose location would be modified by a symbolic link is not extracted. This is, in part, achieved by ensuring that extracted directories are not symlinks. Additionally, in order to prevent unnecessary stat calls to determine whether a given path is a directory, paths are cached when directories are created. This logic was insufficient when extracting tar files that contained both a directory and a symlink with names containing unicode values that normalized to the same value. Additionally, on Windows systems, long path portions would resolve to the same file system entities as their 8.3 "short path" counterparts. A specially crafted tar archive could thus include a directory with one form of the path, followed by a symbolic link with a different string that resolves to the same file system entity, followed by a file using the first form. By first creating a directory, and then replacing that directory with a symlink that had a different apparent name that resolved to the same entry in the filesystem, it was thus possible to bypass node-tar symlink checks on directories, essentially allowing an untrusted tar file to symlink into an arbitrary location and subsequently extracting arbitrary files into that location, thus allowing arbitrary file creation and overwrite. These issues were addressed in releases 4.4.18, 5.0.10 and 6.1.9. The v3 branch of node-tar has been deprecated and did not receive patches for these issues. If you are still using a v3 release we recommend you update to a more recent version of node-tar. If this is not possible, a workaround is available in the referenced GHSA-qq89-hq3f-393p.

Related Files

Red Hat Security Advisory 2022-0350-04
Posted Feb 2, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-0350-04 - Node.js is a software development platform for building fast and scalable network applications in the JavaScript programming language. Issues addressed include HTTP request smuggling and denial of service vulnerabilities.

tags | advisory, web, denial of service, javascript, vulnerability
systems | linux, redhat
advisories | CVE-2020-28469, CVE-2020-7788, CVE-2021-22959, CVE-2021-22960, CVE-2021-33502, CVE-2021-37701, CVE-2021-37712, CVE-2021-3807, CVE-2021-3918
SHA-256 | 07cf30cab5cf210d32816cb8dbca0ff2d5ee3995e8c201686697cb9fca2bdbfd
Red Hat Security Advisory 2022-0246-04
Posted Jan 25, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-0246-04 - Node.js is a software development platform for building fast and scalable network applications in the JavaScript programming language. Issues addressed include HTTP request smuggling and denial of service vulnerabilities.

tags | advisory, web, denial of service, javascript, vulnerability
systems | linux, redhat
advisories | CVE-2020-28469, CVE-2020-7788, CVE-2021-22959, CVE-2021-22960, CVE-2021-33502, CVE-2021-37701, CVE-2021-37712, CVE-2021-3807, CVE-2021-3918
SHA-256 | ac685f0ee1416a81c17a3920f8990f34fd0bed2044d014166ed19445dfeee9de
Red Hat Security Advisory 2022-0041-02
Posted Jan 7, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-0041-02 - Node.js is a software development platform for building fast and scalable network applications in the JavaScript programming language. Issues addressed include HTTP request smuggling and denial of service vulnerabilities.

tags | advisory, web, denial of service, javascript, vulnerability
systems | linux, redhat
advisories | CVE-2021-22959, CVE-2021-22960, CVE-2021-37701, CVE-2021-37712, CVE-2021-3807, CVE-2021-3918
SHA-256 | a99fe197fc57400e20bfe23ee30166ab68528ec9bf0aa7cc6ad183163f65fef4
Red Hat Security Advisory 2021-5086-06
Posted Dec 14, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-5086-06 - Red Hat OpenShift Data Foundation is software-defined storage integrated with and optimized for the Red Hat OpenShift Container Platform. Red Hat OpenShift Data Foundation is a highly scalable, production-grade persistent storage for stateful applications running in the Red Hat OpenShift Container Platform. Issues addressed include a path sanitization vulnerability.

tags | advisory
systems | linux, redhat
advisories | CVE-2020-8565, CVE-2021-32803, CVE-2021-32804, CVE-2021-33195, CVE-2021-33197, CVE-2021-33198, CVE-2021-34558, CVE-2021-37701, CVE-2021-37712
SHA-256 | 774e5117e6048e40bc0540ccd8f805fad79e574958c9975e3e273b6f6ba3280c
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