{"id":"UBUNTU-CVE-2020-35906","details":"An issue was discovered in the futures-task crate before 0.3.6 for Rust. futures_task::waker may cause a use-after-free in a non-static type situation.","modified":"2026-01-20T17:18:16.985721Z","published":"2020-12-31T09:15:00Z","upstream":["CVE-2020-35906"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-35906"},{"type":"REPORT","url":"https://github.com/rust-lang/futures-rs/pull/2206"},{"type":"REPORT","url":"https://rustsec.org/advisories/RUSTSEC-2020-0060.html"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2020-35906"}],"affected":[{"package":{"name":"rust-futures-task","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/rust-futures-task@0.3.17-1?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.3.8-1","0.3.17-1"],"ecosystem_specific":{"binaries":[{"binary_version":"0.3.17-1","binary_name":"librust-futures-task-dev"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-35906.json"}},{"package":{"name":"rust-futures-task","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/rust-futures-task@0.3.30-1?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.3.28-1","0.3.29-1","0.3.30-1"],"ecosystem_specific":{"binaries":[{"binary_version":"0.3.30-1","binary_name":"librust-futures-task-dev"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-35906.json"}},{"package":{"name":"rust-futures-task","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/rust-futures-task@0.3.31-3?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.3.31-3"],"ecosystem_specific":{"binaries":[{"binary_version":"0.3.31-3","binary_name":"librust-futures-task-dev"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-35906.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"low"}]}