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CVE-2016-8622

CVE-2016-8622

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

The URL percent-encoding decode function in libcurl before 7.51.0 is called `curl_easy_unescape`. Internally, even if this function would be made to allocate a unscape destination buffer larger than 2GB, it would return that new length in a signed 32 bit integer variable, thus the length would get either just truncated or both truncated and turned negative. That could then lead to libcurl writing outside of its heap based buffer.

CVSS 3.7 · Low · EPSS 4.7% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • curl

    Versions
    • 7.51.0: Affected

    No fix published

  • curl Debian:12

    Affected ranges
    • ECOSYSTEM: < 7.51.0-1

    Update to 7.51.0-1

  • curl Debian:13

    Affected ranges
    • ECOSYSTEM: < 7.51.0-1

    Update to 7.51.0-1

  • curl Debian:14

    Affected ranges
    • ECOSYSTEM: < 7.51.0-1

    Update to 7.51.0-1

  • curl Ubuntu:14.04:LTS

    Versions
    • 7.32.0-1ubuntu1
    • 7.33.0-1ubuntu1
    • 7.34.0-1ubuntu1
    • 7.35.0-1ubuntu1
    • 7.35.0-1ubuntu2
    • 7.35.0-1ubuntu2.1
    • 7.35.0-1ubuntu2.2
    • 7.35.0-1ubuntu2.3
    • 7.35.0-1ubuntu2.5
    • 7.35.0-1ubuntu2.6
    • 7.35.0-1ubuntu2.7
    • 7.35.0-1ubuntu2.8
    • 7.35.0-1ubuntu2.9
    Affected ranges
    • ECOSYSTEM: < 7.35.0-1ubuntu2.10

    Update to 7.35.0-1ubuntu2.10

  • curl Ubuntu:16.04:LTS

    Versions
    • 7.43.0-1ubuntu2
    • 7.45.0-1ubuntu1
    • 7.46.0-1ubuntu1
    • 7.47.0-1ubuntu1
    • 7.47.0-1ubuntu2
    • 7.47.0-1ubuntu2.1
    Affected ranges
    • ECOSYSTEM: < 7.47.0-1ubuntu2.2

    Update to 7.47.0-1ubuntu2.2

Original sources

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