libarchive 3.4.1 through 3.5.1 has a use-after-free in copystring (called from douncompressblock and processblock).
{
"license": "CC-BY-4.0",
"sources": [
{
"id": "CVE-2021-36976",
"imported": "2025-11-25T21:58:26.858Z",
"url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2021-36976",
"published": "2021-07-20T07:15:07.950Z",
"modified": "2025-11-03T22:15:49.807Z",
"html_url": "https://nvd.nist.gov/vuln/detail/CVE-2021-36976"
}
]
}