Medium severity5.9NVD Advisory· Published Aug 3, 2023· Updated Jun 17, 2026
CVE-2023-3766
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.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
odoh-rscrates.io | < 1.0.2 | 1.0.2 |
Affected products
3cpe:2.3:a:cloudflare:odoh-rs:*:*:*:*:*:rust:*:*+ 1 more
- cpe:2.3:a:cloudflare:odoh-rs:*:*:*:*:*:rust:*:*range: <1.0.2
- (no CPE)range: 0
Patches
Vulnerability mechanics
References
6- github.com/cloudflare/odoh-rs/pull/28nvdPatchVendor AdvisoryWEB
- github.com/advisories/GHSA-gpcv-p28p-fv2pghsaADVISORY
- github.com/cloudflare/odoh-rs/security/advisories/GHSA-gpcv-p28p-fv2pnvdVendor AdvisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2023-3766ghsaADVISORY
- github.com/cloudflare/odoh-rs/commit/c1bc4ed71dcc9842b7dc1ea26f278f105074bbaaghsaWEB
- rustsec.org/advisories/RUSTSEC-2023-0095.htmlghsaWEB
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