CVE-2023-3766

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    CVE-2023-3766

    Published: 3 Aug 2023Last Modified: 12 Aug 2026

    Summary: Invalid Slice Split Results in Server Panic

    Details: 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.

    References: https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/3xxx/CVE-2023-3766.json, https://github.com/cloudflare/odoh-rs/security/advisories/GHSA-gpcv-p28p-fv2p, https://nvd.nist.gov/vuln/detail/CVE-2023-3766, https://github.com/cloudflare/odoh-rs/pull/28, https://github.com/cloudflare/odoh-rs

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -5c50e3834bbb0b7b17e342da93904e8cad2ad931

    Affected versions

    v1.0.1
    v1.0.0
    v1.0.0-beta.2
    v1.0.0-beta.1

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2023-3766 | CVE-DB