CVE-2022-24777

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    CVE-2022-24777

    Published: 25 Mar 2022Last Modified: 12 Aug 2026

    Summary: Denial of Service via reachable assertion in grpc-swift

    Details: grpc-swift is the Swift language implementation of gRPC, a remote procedure call (RPC) framework. Prior to version 1.7.2, a grpc-swift server is vulnerable to a denial of service attack via a reachable assertion. This is due to incorrect logic when handling GOAWAY frames. The attack is low-effort: it takes very little resources to construct and send the required sequence of frames. The impact on availability is high as the server will crash, dropping all in flight connections and requests. This issue is fixed in version 1.7.2. There are currently no known workarounds.

    References: https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/24xxx/CVE-2022-24777.json, https://github.com/grpc/grpc-swift/security/advisories/GHSA-r6ww-5963-7r95, https://nvd.nist.gov/vuln/detail/CVE-2022-24777, https://github.com/grpc/grpc-swift/commit/858f977f2a51fca2292f384cf7a108dc2e73a3bd

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -858f977f2a51fca2292f384cf7a108dc2e73a3bd

    Affected versions

    1.7.1-async-await.1
    1.7.1
    1.7.0

    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-2022-24777 | CVE-DB