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CVE-2019-20637

CVE-2019-20637

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

An issue was discovered in Varnish Cache before 6.0.5 LTS, 6.1.x and 6.2.x before 6.2.2, and 6.3.x before 6.3.1. It does not clear a pointer between the handling of one client request and the next request within the same connection. This sometimes causes information to be disclosed from the connection workspace, such as data structures associated with previous requests within this connection or VCL-related temporary headers.

CVSS 7.5 · High · EPSS 1.8% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • n/a

    Versions
    • n/a: Affected

    No fix published

  • varnish Debian:12

    Affected ranges
    • ECOSYSTEM: < 6.4.0-1

    Update to 6.4.0-1

  • varnish Debian:13

    Affected ranges
    • ECOSYSTEM: < 6.4.0-1

    Update to 6.4.0-1

  • varnish Ubuntu:18.04:LTS

    Versions
    • 5.0.0-7.1
    • 5.2.1-1
    Affected ranges
    • ECOSYSTEM: < 5.2.1-1ubuntu0.1

    Update to 5.2.1-1ubuntu0.1

  • varnish Ubuntu:20.04:LTS

    Versions
    • 6.1.1-1
    • 6.2.1-2
    Affected ranges
    • ECOSYSTEM: < 6.2.1-2ubuntu0.1

    Update to 6.2.1-2ubuntu0.1

Original sources

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