{
"id": "GHSA-2828-9vh6-9m6j",
"aliases": [
"CVE-2020-6173"
],
"details": "### Impact\nAn attacker who can gain file access to the repository and modify metadata files may cause a denial of service to clients by creating many invalid signatures on a metadata file. Having a large number of signatures to verify will delay the moment when the client will determine the signature is not valid. This delay may be for at least a few minutes, but possibly could be longer especially if multiple files are impacted.\n\nThe tuf maintainers would like to thank Erik MacLean of Analog Devices, Inc. for reporting this issue.\n\n### Patches\nNo fix exists for this issue. \n\n### Workarounds\nNo workarounds are known for this issue.\n\n### References\n* [CVE-2020-6173](https://nvd.nist.gov/vuln/detail/CVE-2020-6173)\n* [Issue #973](https://github.com/theupdateframework/tuf/issues/973)",
"summary": "Client Denial of Service on TUF",
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0.7.2"
},
{
"fixed": "0.12.2"
}
]
}
],
"package": {
"name": "tuf",
"ecosystem": "PyPI"
}
}
],
"modified": "2024-11-18T22:40:00Z",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"
},
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N"
}
],
"published": "2020-08-21T16:25:48Z",
"references": [
{
"url": "https://github.com/theupdateframework/tuf/security/advisories/GHSA-2828-9vh6-9m6j",
"type": "WEB"
},
{
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-6173",
"type": "ADVISORY"
},
{
"url": "https://github.com/theupdateframework/tuf/issues/973",
"type": "WEB"
},
{
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/tuf/PYSEC-2020-146.yaml",
"type": "WEB"
},
{
"url": "https://github.com/theupdateframework/tuf",
"type": "PACKAGE"
},
{
"url": "https://github.com/theupdateframework/tuf/commits/develop",
"type": "WEB"
}
],
"schema_version": "1.4.0",
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"severity": "MODERATE",
"github_reviewed": true,
"nvd_published_at": null,
"github_reviewed_at": "2020-08-21T16:19:09Z"
}
}