DEBIAN-CVE-2019-9511

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    DEBIAN-CVE-2019-9511

    Published: 13 Aug 2019Last Modified: 10 Sept 2026
    Upstream:
    CVE-2019-9511

    Summary:

    Details: Some HTTP/2 implementations are vulnerable to window size manipulation and stream prioritization manipulation, potentially leading to a denial of service. The attacker requests a large amount of data from a specified resource over multiple streams. They manipulate window size and stream priority to force the server to queue the data in 1-byte chunks. Depending on how efficiently this data is queued, this can consume excess CPU, memory, or both.

    References: https://security-tracker.debian.org/tracker/CVE-2019-9511

    Affected packages

    Package

    Name: nghttp2

    Purl: pkg:deb/debian/nghttp2?arch=source&distro=bookworm

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.39.2-1

    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
    DEBIAN-CVE-2019-9511 | CVE-DB