{"id":"UBUNTU-CVE-2020-35861","details":"An issue was discovered in the bumpalo crate before 3.2.1 for Rust. The realloc feature allows the reading of unknown memory. Attackers can potentially read cryptographic keys.","modified":"2025-10-24T04:48:58Z","published":"2020-12-31T10:15:00Z","upstream":["CVE-2020-35861"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-35861"},{"type":"REPORT","url":"https://rustsec.org/advisories/RUSTSEC-2020-0006.html"},{"type":"REPORT","url":"https://github.com/fitzgen/bumpalo/issues/69"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2020-35861"}],"affected":[{"package":{"name":"rust-bumpalo","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/rust-bumpalo@3.1.2-1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.5.0-3","2.6.0-1","3.1.2-1"],"ecosystem_specific":{"binaries":[{"binary_name":"librust-bumpalo-dev","binary_version":"3.1.2-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-35861.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"type":"Ubuntu","score":"medium"}]}