{"id":"CVE-2019-15553","aliases":["DEBIAN-CVE-2019-15553","EUVD-2021-1869","GHSA-rh89-x75f-rh3c","RUSTSEC-2019-0011","UBUNTU-CVE-2019-15553"],"status":"published","title":"Exposure of uninitialized memory in memoffset","description":"An issue was discovered in the memoffset crate before 0.5.0 for Rust. offset_of and span_of can cause exposure of uninitialized memory.","severity":{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.01766,"percentile":0.78367,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-908"],"published":"2019-07-16T12:00:00Z","modified":"2026-10-20T10:52:23Z","fixes":[{"ecosystem":"crates.io","package":"memoffset","fixed_in":["0.5.0"],"sources":["ghsa","osv"]},{"ecosystem":"Debian:12","package":"rust-memoffset","fixed_in":["0.5.1-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"rust-memoffset","fixed_in":["0.5.1-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"rust-memoffset","fixed_in":["0.5.1-1"],"sources":["osv"]}],"affected":[{"source":"ghsa","ecosystem":"crates.io","package":"memoffset","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.5.0"}]}]},{"source":"osv","ecosystem":"Debian:12","package":"rust-memoffset","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.5.1-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"rust-memoffset","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.5.1-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"rust-memoffset","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.5.1-1"}]}]},{"source":"osv","ecosystem":"crates.io","package":"memoffset","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"0.5.0"}]}]},{"source":"osv","ecosystem":"crates.io","package":"memoffset","ranges":[{"type":"SEMVER","events":[{"introduced":"0.0.0-0"},{"fixed":"0.5.0"}]}]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"rust-memoffset","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.2.1-1","0.5.3-1"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"rust-memoffset","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.5.3-1","0.6.4-1"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"rust-memoffset","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.6.5-1"]},{"source":"osv","ecosystem":"Ubuntu:25.10","package":"rust-memoffset","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.8.0-1"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"rust-memoffset","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.8.0-1"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"rust-memoffset","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.8.0-1"]}],"products":[{"vendor":"memoffset_project","product":"memoffset"}],"references":[{"url":"https://rustsec.org/advisories/RUSTSEC-2019-0011.html","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","advisory","web","report"]},{"url":"https://github.com/Gilnaa/memoffset/issues/9#issuecomment-505461490","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","advisory","web","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-15553","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-rh89-x75f-rh3c"},{"url":"https://security-tracker.debian.org/tracker/CVE-2019-15553","tags":["advisory"]},{"url":"https://github.com/Gilnaa/memoffset","tags":["package"]},{"url":"https://crates.io/crates/memoffset","tags":["package"]},{"url":"https://ubuntu.com/security/CVE-2019-15553","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2019-15553","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2019-15553","description":"An issue was discovered in the memoffset crate before 0.5.0 for Rust. offset_of and span_of can cause exposure of uninitialized memory.","status":"published","published":"2019-08-26T14:33:08Z","modified":"2024-08-05T00:49:13.58Z","updated_at":"2026-11-02T14:20:21.703364Z"}],"euvd":[{"id":"EUVD-2021-1869","description":"An issue was discovered in the memoffset crate before 0.5.0 for Rust. offset_of and span_of can cause exposure of uninitialized memory.","status":"published","published":"2019-08-26T14:33:08Z","modified":"2024-08-05T00:49:13Z","updated_at":"2026-11-03T02:40:35.584574Z"}],"ghsa":[{"id":"GHSA-rh89-x75f-rh3c","title":"Exposure of uninitialized memory in memoffset","description":"Affected versions of this crate caused traps and/or memory unsafety by zero-initializing references. They also could lead to uninitialized memory being dropped if the field for which the offset is requested was behind a deref coercion, and that deref coercion caused a panic. The flaw was corrected by using MaybeUninit.","status":"published","published":"2021-08-25T20:44:00Z","modified":"2023-06-13T18:43:23Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"cwes":["CWE-908"],"updated_at":"2026-11-02T14:36:53.654352Z"}],"nvd":[{"id":"CVE-2019-15553","description":"An issue was discovered in the memoffset crate before 0.5.0 for Rust. offset_of and span_of can cause exposure of uninitialized memory.","status":"published","published":"2019-08-26T15:15:12.127Z","modified":"2026-06-17T02:20:37.317Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-908"],"updated_at":"2026-11-02T14:05:23.725587Z"}],"osv":[{"id":"CVE-2019-15553","description":"An issue was discovered in the memoffset crate before 0.5.0 for Rust. offset_of and span_of can cause exposure of uninitialized memory.","status":"published","published":"2019-08-26T15:15:12.127Z","modified":"2026-10-20T10:52:23.880779502Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"updated_at":"2026-11-02T15:44:11.361782Z"},{"id":"DEBIAN-CVE-2019-15553","description":"An issue was discovered in the memoffset crate before 0.5.0 for Rust. offset_of and span_of can cause exposure of uninitialized memory.","status":"published","published":"2019-08-26T15:15:12.127Z","modified":"2026-09-21T07:02:45.920169583Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"updated_at":"2026-11-02T15:45:31.867036Z"},{"id":"GHSA-rh89-x75f-rh3c","title":"Exposure of uninitialized memory in memoffset","description":"Affected versions of this crate caused traps and/or memory unsafety by zero-initializing references. They also could lead to uninitialized memory being dropped if the field for which the offset is requested was behind a deref coercion, and that deref coercion caused a panic. The flaw was corrected by using MaybeUninit.","status":"published","published":"2021-08-25T20:44:00Z","modified":"2023-11-08T04:01:14.285412Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"cwes":["CWE-908"],"updated_at":"2026-11-02T15:46:55.877614Z"},{"id":"RUSTSEC-2019-0011","title":"Flaw in offset_of and span_of causes SIGILL, drops uninitialized memory of arbitrary type on panic in client code","description":"Affected versions of this crate caused traps and/or memory unsafety by zero-initializing references.\nThey also could lead to uninitialized memory being dropped if the field for which the offset is requested was behind a deref coercion, and that deref coercion caused a panic.\n\nThe flaw was corrected by using `MaybeUninit`.","status":"published","published":"2019-07-16T12:00:00Z","modified":"2023-11-08T04:01:14.285412Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"updated_at":"2026-11-02T15:53:39.492624Z"},{"id":"UBUNTU-CVE-2019-15553","description":"An issue was discovered in the memoffset crate before 0.5.0 for Rust. offset_of and span_of can cause exposure of uninitialized memory.","status":"published","published":"2019-08-26T15:15:00Z","modified":"2026-10-17T12:55:35.910505209Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"updated_at":"2026-11-02T15:54:19.6877Z"}]}}