{"id":"GHSA-2828-9vh6-9m6j","summary":"Client Denial of Service on TUF","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)","aliases":["CVE-2020-6173","PYSEC-2020-146"],"modified":"2024-11-18T22:46:46.155030Z","published":"2020-08-21T16:25:48Z","database_specific":{"github_reviewed":true,"github_reviewed_at":"2020-08-21T16:19:09Z","nvd_published_at":null,"cwe_ids":["CWE-400"],"severity":"MODERATE"},"references":[{"type":"WEB","url":"https://github.com/theupdateframework/tuf/security/advisories/GHSA-2828-9vh6-9m6j"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2020-6173"},{"type":"WEB","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":"PACKAGE","url":"https://github.com/theupdateframework/tuf"},{"type":"WEB","url":"https://github.com/theupdateframework/tuf/commits/develop"}],"affected":[{"package":{"name":"tuf","ecosystem":"PyPI","purl":"pkg:pypi/tuf"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0.7.2"},{"fixed":"0.12.2"}]}],"versions":["0.10.0","0.10.1","0.10.2","0.11.0","0.11.1","0.11.2.dev1","0.11.2.dev2","0.11.2.dev3","0.11.dev0","0.12.0","0.12.1","0.12.dev0","0.12.dev1","0.12.dev2","0.7.5","0.9.8","0.9.9"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2020/08/GHSA-2828-9vh6-9m6j/GHSA-2828-9vh6-9m6j.json"}}],"schema_version":"1.9.0","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"}]}