GHSA-ppxx-5m9h-6vxf

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    GHSA-ppxx-5m9h-6vxf

    Published: 10 Jan 2024Last Modified: 10 Sept 2026

    Summary: quic-go's path validation mechanism can be exploited to cause denial of service

    Details: An attacker can cause its peer to run out of memory sending a large number of PATH_CHALLENGE frames. The receiver is supposed to respond to each PATH_CHALLENGE frame with a PATH_RESPONSE frame. The attacker can prevent the receiver from sending out (the vast majority of) these PATH_RESPONSE frames by collapsing the peers congestion window (by selectively acknowledging received packets) and by manipulating the peer's RTT estimate. I published a more detailed description of the attack and its mitigation in this blog post: https://seemann.io/posts/2023-12-18-exploiting-quics-path-validation/ There's no way to mitigate this attack, please update quic-go to a version that contains the fix.

    References: https://github.com/quic-go/quic-go/security/advisories/GHSA-ppxx-5m9h-6vxf, https://nvd.nist.gov/vuln/detail/CVE-2023-49295, https://github.com/quic-go/quic-go/commit/17fc98c2d81dbe685c19702dc694a9d606ac56dc, https://github.com/quic-go/quic-go/commit/21609ddfeff93668c7625a85eb09f1541fdad965, https://github.com/quic-go/quic-go/commit/3a9c18bcd27a01c551ac9bf8bd2b4bded77c189a, https://github.com/quic-go/quic-go/commit/554d543b50b917369fb1394cc5396d928166cf49, https://github.com/quic-go/quic-go/commit/6cc3d58935426191296171a6c0d1ee965e10534e, https://github.com/quic-go/quic-go/commit/9aaefe19fc3dc8c8917cc87e6128bb56d9e9e6cc, https://github.com/quic-go/quic-go/commit/a0ffa757499913f7be69aa78f573a6aee3430ae4, https://github.com/quic-go/quic-go/commit/d7aa627ebde91cf799ada2a07443faa9b1e5abb8, https://github.com/quic-go/quic-go, https://lists.fedoraproject.org/archives/list/[email protected]/message/G5RSHDTVMYAIGYVVFGKTMFHAZJMA3EVV, https://lists.fedoraproject.org/archives/list/[email protected]/message/ZE7IOKXX5AATU2WR3V76X5Y3A44QAATG, https://seemann.io/posts/2023-12-18-exploiting-quics-path-validation

    Affected packages

    Package

    Name: github.com/quic-go/quic-go

    Purl: pkg:golang/github.com/quic-go/quic-go

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 0.40.0
    Fixed -0.40.1

    Affected versions

    0.40.0

    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
    GHSA-ppxx-5m9h-6vxf | CVE-DB