GO-2023-2045

    Dashboard / Vulnerabilities / GO-2023-2045

    GO-2023-2045

    Published: 7 Sept 2023Last Modified: 4 Feb 2026

    Summary: Memory exhaustion in QUIC connection handling in crypto/tls

    Details: QUIC connections do not set an upper bound on the amount of data buffered when reading post-handshake messages, allowing a malicious QUIC connection to cause unbounded memory growth. With fix, connections now consistently reject messages larger than 65KiB in size.

    References: https://go.dev/issue/62266, https://go.dev/cl/523039, https://groups.google.com/g/golang-dev/c/2C5vbR-UNkI/m/L1hdrPhfBAAJ

    Affected packages

    Package

    Name: stdlib

    Purl: pkg:golang/stdlib

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 1.21.0-0
    Fixed -1.21.1

    Affected versions

    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
    GO-2023-2045 | CVE-DB