{"id":"RUSTSEC-2026-0411","revision":null,"records":[{"revision":"59c952003b6a4cfe8475283287385545","observedAt":"2026-10-26T14:35:44.727+00:00","statement":{"source":"osv","id":"RUSTSEC-2026-0411","aliases":[],"title":"Out-of-bounds read in `Log2Cache::nlog2n()`, `nlog2n_difference()` and `plog2p()`","description":"`Log2Cache::new(n)` fills its three tables with entries for `0..=n`, but the\nthree accessor methods index those tables with `get_unchecked` on a value the\ncaller supplies. Nothing bounds the argument and nothing documents a bound, so\nany value above the `n` the cache was built with reads past the end of the\nvector. `CountType` is `u32`, so the read can land up to `u32::MAX` elements\naway, and `plog2p()` returns the value it read, disclosing whatever lies there.\n\nFor example, `Log2Cache::new(4)` builds tables holding 5 entries (indices\n0,1,2,3,4). Then `cache.nlog2n(60000)` reads index 60000, far outside the\nallocation. Under AddressSanitizer this faults with `SEGV`; Miri reports it as\nundefined behavior at `src/log2cache.rs:42`.\n\n`nlog2n_difference()` is off by one further: in the affected versions `new(n)`\npushes `n` entries into that table rather than `n + 1`, so even\n`nlog2n_difference(n)` is out of bounds.\n\nThis can be triggered through safe public APIs — `Log2Cache::new()` and any of\n`nlog2n()`, `nlog2n_difference()` and `plog2p()` — with no `unsafe` required\nfrom the caller.","state":0,"publishedAt":"2026-10-22T12:00:00+00:00","modifiedAt":"2026-10-26T14:00:05.0919044+00:00","affected":[{"ecosystem":"crates.io","name":"dahl-salso","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0.0.0-0"},{"kind":"fixed","version":"0.7.0"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[],"references":["https://crates.io/crates/dahl-salso","https://rustsec.org/advisories/RUSTSEC-2026-0411.html","https://github.com/dbdahl/rust-dahl-salso/issues/2"],"sourceUrl":"https://osv.dev/vulnerability/RUSTSEC-2026-0411","license":"OSV · upstream source license applies","key":"osv:RUSTSEC-2026-0411","identifiers":["RUSTSEC-2026-0411"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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Not a global EUVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-faed4bf7c3b54b258c46962bb8c893c7","complete":false,"records":13230,"lastAttemptAt":"2026-10-28T10:34:55.4095227+00:00","lastSuccessAt":"2026-10-28T10:34:55.4624366+00:00","error":null,"lastVerifiedAt":"2026-10-28T10:34:55.4624366+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"first-epss:nuget","scope":"FIRST EPSS for explicit CVE aliases in the collected public NuGet archive. Not a global EPSS backfill.","generation":"2026-10-28T10:33:32.5344446+00:00","complete":true,"records":1093,"lastAttemptAt":"2026-10-28T10:33:32.5344446+00:00","lastSuccessAt":"2026-10-28T10:33:32.6846081+00:00","error":null,"lastVerifiedAt":"2026-10-28T10:33:32.6846084+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"nvd","scope":"Rolling NVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global NVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-8d16a738328646698f9217d8ea11893c","complete":true,"records":13449,"lastAttemptAt":"2026-10-28T10:33:33.1463542+00:00","lastSuccessAt":"2026-10-27T22:48:29.491+00:00","error":null,"lastVerifiedAt":"2026-10-27T22:48:29.491+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13514,"expectedIdentifiers":13514,"failedIdentifiers":0},{"source":"osv:Go","scope":"Complete OSV Go ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"go-f7cb12508d9e6a348c8a60f772ed85529cc80cd2ff853da1099b57754b20e943","complete":true,"records":9790,"lastAttemptAt":"2026-10-28T10:33:28.4933633+00:00","lastSuccessAt":"2026-10-27T21:49:03.9756799+00:00","error":null,"lastVerifiedAt":"2026-10-28T10:33:28.4933633+00:00","snapshotPublishedAt":"2026-10-27T21:48:11+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:NuGet","scope":"Complete OSV NuGet ecosystem archive, including GitHub Advisory Database records; NuGet version matching only","generation":"nuget-72e5e79de0026dd0562d40734074a2236a06886643d67182b8381eaee757dbf7","complete":true,"records":1966,"lastAttemptAt":"2026-10-28T10:33:28.2877501+00:00","lastSuccessAt":"2026-10-27T21:46:38.0277323+00:00","error":null,"lastVerifiedAt":"2026-10-28T10:33:28.2877501+00:00","snapshotPublishedAt":"2026-10-27T21:18:15+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:crates.io","scope":"Complete OSV crates.io ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"crates.io-9cc0e41ed4e75d0c111bed7fd0bbcd4f139c80cc1fc67f8c3d9a33a41da846ad","complete":true,"records":3002,"lastAttemptAt":"2026-10-28T10:33:32.5040876+00:00","lastSuccessAt":"2026-10-28T10:33:32.3653779+00:00","error":null,"lastVerifiedAt":"2026-10-28T10:33:32.5040876+00:00","snapshotPublishedAt":"2026-10-28T09:02:50+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:npm","scope":"Complete OSV npm ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"npm-2ba4ef78ff3a54a3ff2eeaf8e09b7b84901727f582723b80c5b0279e777b2781","complete":true,"records":230857,"lastAttemptAt":"2026-10-28T10:33:28.3916004+00:00","lastSuccessAt":"2026-10-28T09:35:14.9469514+00:00","error":null,"lastVerifiedAt":"2026-10-28T10:33:28.3916004+00:00","snapshotPublishedAt":"2026-10-28T09:33:01+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null}]}