{
"id": "GHSA-j44m-qm6p-hp7m",
"aliases": [
"CVE-2018-20834"
],
"details": "Versions of `tar` prior to 4.4.2 for 4.x and 2.2.2 for 2.x are vulnerable to Arbitrary File Overwrite. Extracting tarballs containing a hardlink to a file that already exists in the system, and a file that matches the hardlink will overwrite the system's file with the contents of the extracted file.\n\n\n## Recommendation\n\nFor tar 4.x, upgrade to version 4.4.2 or later.\nFor tar 2.x, upgrade to version 2.2.2 or later.",
"summary": "Arbitrary File Overwrite in tar",
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "3.0.0"
},
{
"fixed": "4.4.2"
}
]
}
],
"package": {
"name": "tar",
"ecosystem": "npm"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.2.2"
}
]
}
],
"package": {
"name": "tar",
"ecosystem": "npm"
}
}
],
"modified": "2023-11-29T22:25:48Z",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"
}
],
"published": "2019-05-01T18:37:31Z",
"references": [
{
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-20834",
"type": "ADVISORY"
},
{
"url": "https://github.com/npm/node-tar/commit/7ecef07da6a9e72cc0c4d0c9c6a8e85b6b52395d",
"type": "WEB"
},
{
"url": "https://github.com/npm/node-tar/commit/b0c58433c22f5e7fe8b1c76373f27e3f81dcd4c8",
"type": "WEB"
},
{
"url": "https://hackerone.com/reports/344595",
"type": "WEB"
},
{
"url": "https://access.redhat.com/errata/RHSA-2019:1821",
"type": "WEB"
},
{
"url": "https://github.com/isaacs/node-tar",
"type": "PACKAGE"
},
{
"url": "https://github.com/npm/node-tar/commits/v2.2.2",
"type": "WEB"
},
{
"url": "https://github.com/npm/node-tar/compare/58a8d43...a5f7779",
"type": "WEB"
}
],
"schema_version": "1.4.0",
"database_specific": {
"cwe_ids": [
"CWE-59"
],
"severity": "HIGH",
"github_reviewed": true,
"nvd_published_at": null,
"github_reviewed_at": "2019-05-01T18:35:41Z"
}
}