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CVE-2019-9516

CVE-2019-9516 · Some HTTP/2 implementations are vulnerable to a header leak, potentially leading to a denial of service

This page contains facts from public vulnerability sources. Check the original advisory before updating.

This page shows selected source facts. See the linked advisories for the complete description and affected versions.

Some HTTP/2 implementations are vulnerable to a header leak, potentially leading to a denial of service. The attacker sends a stream of headers with a 0-length header name and 0-length header value, optionally Huffman encoded into 1-byte or greater headers. Some implementations allocate memory for these headers and keep the allocation alive until the session dies. This can consume excess memory.

CVSS 7.5 · High · EPSS 56.3% · Fix available

Published
Updated

Stack: system · web

Affected products and versions

  • n/a

    Versions
    • n/a: Affected

    No fix published

  • nginx Debian:12

    Affected ranges
    • ECOSYSTEM: < 1.14.2-3

    Update to 1.14.2-3

  • nginx Debian:13

    Affected ranges
    • ECOSYSTEM: < 1.14.2-3

    Update to 1.14.2-3

  • nginx Debian:14

    Affected ranges
    • ECOSYSTEM: < 1.14.2-3

    Update to 1.14.2-3

  • nginx Ubuntu:16.04:LTS

    Versions
    • 1.9.3-1ubuntu1
    • 1.9.6-2ubuntu1
    • 1.9.6-2ubuntu2
    • 1.9.9-0ubuntu1
    • 1.9.9-1ubuntu1
    • 1.9.10-0ubuntu1
    • 1.9.10-1ubuntu1
    • 1.9.11-0ubuntu1
    • 1.9.11-0ubuntu2
    • 1.9.12-0ubuntu1
    • 1.9.13-0ubuntu1
    • 1.9.14-0ubuntu1
    • 1.9.15-0ubuntu1
    • 1.10.0-0ubuntu0.16.04.1
    • 1.10.0-0ubuntu0.16.04.2
    • 1.10.0-0ubuntu0.16.04.3
    • 1.10.0-0ubuntu0.16.04.4
    • 1.10.3-0ubuntu0.16.04.1
    • 1.10.3-0ubuntu0.16.04.2
    • 1.10.3-0ubuntu0.16.04.3
    Affected ranges
    • ECOSYSTEM: < 1.10.3-0ubuntu0.16.04.4

    Update to 1.10.3-0ubuntu0.16.04.4

  • nginx Ubuntu:18.04:LTS

    Versions
    • 1.12.1-0ubuntu2
    • 1.13.6-2ubuntu1
    • 1.13.6-2ubuntu2
    • 1.13.10-1ubuntu1
    • 1.13.12-0ubuntu1
    • 1.14.0-0ubuntu1
    • 1.14.0-0ubuntu1.1
    • 1.14.0-0ubuntu1.2
    • 1.14.0-0ubuntu1.3
    Affected ranges
    • ECOSYSTEM: < 1.14.0-0ubuntu1.4

    Update to 1.14.0-0ubuntu1.4

Original sources

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