{"id":"CVE-2020-36513","aliases":["EUVD-2022-0499","GHSA-799f-r78p-gq9c","GHSA-hv9v-7w3v-rj6f","RUSTSEC-2020-0155"],"status":"published","title":"Use of Uninitialized Resource in acc_reader.","description":"An issue was discovered in the acc_reader crate through 2020-12-27 for Rust. read_up_to may read from uninitialized memory locations.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-12","score":0.0123,"percentile":0.69358,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-908"],"published":"2020-12-27T12:00:00Z","modified":"2026-06-17T03:15:37Z","affected":[{"source":"ghsa","ecosystem":"crates.io","package":"acc_reader","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"2.0.0"}]}]},{"source":"ghsa","ecosystem":"crates.io","package":"acc_reader","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"2.0.0"}]}]},{"source":"osv","ecosystem":"crates.io","package":"acc_reader","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"last_affected":"2.0.0"}]}],"bundled":2},{"source":"osv","ecosystem":"crates.io","package":"acc_reader","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"last_affected":"2.0.0"}]}],"bundled":2},{"source":"osv","ecosystem":"crates.io","package":"acc_reader","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"last_affected":"2.0.0"}]}],"bundled":2},{"source":"osv","ecosystem":"crates.io","package":"acc_reader","ranges":[{"type":"SEMVER","events":[{"introduced":"0.0.0-0"}]}],"bundled":2}],"products":[{"vendor":"acc_reader_project","product":"acc_reader"}],"references":[{"url":"https://rustsec.org/advisories/RUSTSEC-2020-0155.html","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","web","advisory"]},{"url":"https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/acc_reader/RUSTSEC-2020-0155.md","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-36513","tags":["advisory"]},{"url":"https://github.com/netvl/acc_reader/issues/1","tags":["web","report"]},{"url":"https://github.com/advisories/GHSA-799f-r78p-gq9c"},{"url":"https://github.com/advisories/GHSA-hv9v-7w3v-rj6f"},{"url":"https://github.com/netvl/acc_reader","tags":["package"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-36514","tags":["advisory"]},{"url":"https://crates.io/crates/acc_reader","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2020-36513","description":"An issue was discovered in the acc_reader crate through 2020-12-27 for Rust. read_up_to may read from uninitialized memory locations.","status":"published","published":"2021-12-26T21:53:44Z","modified":"2024-08-04T17:30:08.24Z","updated_at":"2026-11-02T14:35:54.80237Z"}],"euvd":[{"id":"EUVD-2022-0499","description":"An issue was discovered in the acc_reader crate through 2020-12-27 for Rust. read_up_to may read from uninitialized memory locations.","status":"published","published":"2021-12-26T21:53:44Z","modified":"2024-08-04T17:30:08Z","updated_at":"2026-11-03T03:07:02.510914Z"}],"ghsa":[{"id":"GHSA-799f-r78p-gq9c","title":"Use of Uninitialized Resource in acc_reader.","description":"An issue was discovered in the acc_reader crate through 2020-12-27 for Rust. read_up_to may read from uninitialized memory locations.","status":"published","published":"2022-01-06T22:17:38Z","modified":"2023-06-13T16:27:47Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-908"],"updated_at":"2026-11-02T14:36:53.103029Z"},{"id":"GHSA-hv9v-7w3v-rj6f","title":"`Read` on uninitialized buffer in `fill_buf()` and `read_up_to()`","description":"Affected versions of this crate passes an uninitialized buffer to a user-provided `Read` implementation.\n\nArbitrary `Read` implementations can read from the uninitialized buffer (memory exposure) and also can return incorrect number of bytes written to the buffer.\n\nReading from uninitialized memory produces undefined values that can quickly invoke undefined behavior.\n","status":"published","published":"2022-06-16T23:38:37Z","modified":"2023-06-13T16:02:50Z","updated_at":"2026-11-02T14:36:53.103029Z"}],"nvd":[{"id":"CVE-2020-36513","description":"An issue was discovered in the acc_reader crate through 2020-12-27 for Rust. read_up_to may read from uninitialized memory locations.","status":"published","published":"2021-12-27T00:15:08.387Z","modified":"2026-06-17T03:15:37.673Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-908"],"updated_at":"2026-11-02T14:06:46.101987Z"}],"osv":[{"id":"GHSA-799f-r78p-gq9c","title":"Use of Uninitialized Resource in acc_reader.","description":"An issue was discovered in the acc_reader crate through 2020-12-27 for Rust. read_up_to may read from uninitialized memory locations.","status":"published","published":"2022-01-06T22:17:38Z","modified":"2023-11-08T04:03:47.175334Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-908"],"updated_at":"2026-11-02T15:46:40.657155Z"},{"id":"GHSA-p4cr-64x4-f92f","title":"Use of Uninitialized Resource in acc_reader.","description":"An issue was discovered in the acc_reader crate through 2020-12-27 for Rust. fill_buf may read from uninitialized memory locations.","status":"published","published":"2022-01-06T22:17:23Z","modified":"2023-11-08T04:03:47.175334Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-908"],"updated_at":"2026-11-02T15:46:52.534897Z"},{"id":"GHSA-hv9v-7w3v-rj6f","title":"`Read` on uninitialized buffer in `fill_buf()` and `read_up_to()`","description":"Affected versions of this crate passes an uninitialized buffer to a user-provided `Read` implementation.\n\nArbitrary `Read` implementations can read from the uninitialized buffer (memory exposure) and also can return incorrect number of bytes written to the buffer.\n\nReading from uninitialized memory produces undefined values that can quickly invoke undefined behavior.\n","status":"published","published":"2022-06-16T23:38:37Z","modified":"2023-11-08T04:03:47.175334Z","updated_at":"2026-11-02T15:46:49.621585Z"},{"id":"RUSTSEC-2020-0155","title":"`Read` on uninitialized buffer in `fill_buf()` and `read_up_to()`","description":"Affected versions of this crate passes an uninitialized buffer to a user-provided `Read` implementation.\n\nArbitrary `Read` implementations can read from the uninitialized buffer (memory exposure) and also can return incorrect number of bytes written to the buffer.\nReading from uninitialized memory produces undefined values that can quickly invoke undefined behavior.","status":"published","published":"2020-12-27T12:00:00Z","modified":"2023-11-08T04:03:47.175334Z","updated_at":"2026-11-02T15:53:39.492624Z"}]}}