{"id":"CVE-2023-3766","aliases":["EUVD-2023-2295","GHSA-gpcv-p28p-fv2p","RUSTSEC-2023-0095"],"status":"published","title":"Invalid Slice Split Results in Server Panic","description":"A vulnerability was discovered in the odoh-rs rust crate that stems from faulty logic during the parsing of encrypted queries. This issue specifically occurs when processing encrypted query data received from remote clients and enables an attacker with knowledge of this vulnerability to craft and send specially designed encrypted queries to targeted ODOH servers running with odoh-rs. Upon successful exploitation, the server will crash abruptly, disrupting its normal operation and rendering the service temporarily unavailable.","severity":{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00777,"percentile":0.56255,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-120"],"published":"2023-08-03T12:00:00Z","modified":"2026-10-28T02:30:26Z","fixes":[{"ecosystem":"crates.io","package":"odoh-rs","fixed_in":["1.0.2"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"crates.io","package":"odoh-rs","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.0.2"}]}]},{"source":"osv","ecosystem":"crates.io","package":"odoh-rs","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.0.2"}]}]},{"source":"osv","ecosystem":"crates.io","package":"odoh-rs","ranges":[{"type":"SEMVER","events":[{"introduced":"0.0.0-0"},{"fixed":"1.0.2"}]}]}],"products":[{"vendor":"cloudflare","product":"odoh-rs"}],"references":[{"url":"https://github.com/cloudflare/odoh-rs/security/advisories/GHSA-gpcv-p28p-fv2p","tags":["vendor-advisory","x_transferred","Vendor Advisory","advisory","web"]},{"url":"https://github.com/cloudflare/odoh-rs/pull/28","tags":["patch","x_transferred","Patch","Vendor Advisory","fix","web"]},{"url":"https://github.com/cloudflare/odoh-rs/commit/c1bc4ed71dcc9842b7dc1ea26f278f105074bbaa","tags":["web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-3766","tags":["advisory"]},{"url":"https://rustsec.org/advisories/RUSTSEC-2023-0095.html","tags":["web","advisory"]},{"url":"https://github.com/advisories/GHSA-gpcv-p28p-fv2p"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/3xxx/CVE-2023-3766.json","tags":["advisory"]},{"url":"https://github.com/cloudflare/odoh-rs","tags":["package"]},{"url":"https://crates.io/crates/odoh-rs","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2023-3766","title":"Invalid Slice Split Results in Server Panic","description":"A vulnerability was discovered in the odoh-rs rust crate that stems from faulty logic during the parsing of encrypted queries. This issue specifically occurs when processing encrypted query data received from remote clients and enables an attacker with knowledge of this vulnerability to craft and send specially designed encrypted queries to targeted ODOH servers running with odoh-rs. Upon successful exploitation, the server will crash abruptly, disrupting its normal operation and rendering the service temporarily unavailable.\n\n","status":"published","published":"2023-08-03T13:49:46.751Z","modified":"2024-10-09T20:33:55.971Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T14:35:24.360381Z"}],"euvd":[{"id":"EUVD-2023-2295","description":"A vulnerability was discovered in the odoh-rs rust crate that stems from faulty logic during the parsing of encrypted queries. This issue specifically occurs when processing encrypted query data received from remote clients and enables an attacker with knowledge of this vulnerability to craft and send specially designed encrypted queries to targeted ODOH servers running with odoh-rs. Upon successful exploitation, the server will crash abruptly, disrupting its normal operation and rendering the service temporarily unavailable.\n\n","status":"published","published":"2023-08-03T13:49:46Z","modified":"2024-10-09T20:33:55Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-03T00:27:42.031825Z"}],"ghsa":[{"id":"GHSA-gpcv-p28p-fv2p","title":"odoh-rs's Invalid Slice Split Results in Server Panic","description":"A vulnerability was discovered in the odoh-rs rust crate that stems from faulty logic during the parsing of encrypted queries. This issue specifically occurs when processing encrypted query data received from remote clients.\n\n### Impact\nAn attacker with knowledge of this vulnerability could craft and send specially designed encrypted queries to targeted ODOH servers running with odoh-rs. Upon successful exploitation, the server will crash abruptly, disrupting its normal operation and rendering the service temporarily unavailable.\n\n### Patches\nUsers are encouraged to update their odoh-rs's rust crate to v1.0.2.","status":"published","published":"2023-08-03T16:35:20Z","modified":"2025-12-22T21:33:35Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T14:39:14.093341Z"}],"nvd":[{"id":"CVE-2023-3766","description":"A vulnerability was discovered in the odoh-rs rust crate that stems from faulty logic during the parsing of encrypted queries. This issue specifically occurs when processing encrypted query data received from remote clients and enables an attacker with knowledge of this vulnerability to craft and send specially designed encrypted queries to targeted ODOH servers running with odoh-rs. Upon successful exploitation, the server will crash abruptly, disrupting its normal operation and rendering the service temporarily unavailable.\n\n","status":"published","published":"2023-08-03T15:15:32.097Z","modified":"2026-06-17T06:14:48.54Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"secondary"},{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T14:08:20.798312Z"}],"osv":[{"id":"CVE-2023-3766","title":"Invalid Slice Split Results in Server Panic","description":"A vulnerability was discovered in the odoh-rs rust crate that stems from faulty logic during the parsing of encrypted queries. This issue specifically occurs when processing encrypted query data received from remote clients and enables an attacker with knowledge of this vulnerability to craft and send specially designed encrypted queries to targeted ODOH servers running with odoh-rs. Upon successful exploitation, the server will crash abruptly, disrupting its normal operation and rendering the service temporarily unavailable.\n\n","status":"published","published":"2023-08-03T13:49:46.751Z","modified":"2026-10-28T02:30:26.465108337Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T15:44:32.922049Z"},{"id":"GHSA-gpcv-p28p-fv2p","title":"odoh-rs's Invalid Slice Split Results in Server Panic","description":"A vulnerability was discovered in the odoh-rs rust crate that stems from faulty logic during the parsing of encrypted queries. This issue specifically occurs when processing encrypted query data received from remote clients.\n\n### Impact\nAn attacker with knowledge of this vulnerability could craft and send specially designed encrypted queries to targeted ODOH servers running with odoh-rs. Upon successful exploitation, the server will crash abruptly, disrupting its normal operation and rendering the service temporarily unavailable.\n\n### Patches\nUsers are encouraged to update their odoh-rs's rust crate to v1.0.2.","status":"published","published":"2023-08-03T16:35:20Z","modified":"2026-07-08T06:53:00.615836607Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T15:46:48.191583Z"},{"id":"RUSTSEC-2023-0095","title":"Invalid Slice Split Results in Server Panic","description":"A vulnerability was discovered in the odoh-rs rust crate that stems\nfrom faulty logic during the parsing of encrypted queries. This\nissue specifically occurs when processing encrypted query data\nreceived from remote clients.\n\n## Impact\n\nAn attacker with knowledge of this vulnerability could craft and send\nspecially designed encrypted queries to targeted ODOH servers running\nwith odoh-rs. Upon successful exploitation, the server will crash\nabruptly, disrupting its normal operation and rendering the service\ntemporarily unavailable.\n\n## Patches\n\nUsers are encouraged to update their odoh-rs's rust crate to v1.0.2.","status":"published","published":"2023-08-03T12:00:00Z","modified":"2026-10-12T18:00:06.118088816Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:53:39.971022Z"}]}}