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CVE-2022-27780

CVE-2022-27780

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

The curl URL parser wrongly accepts percent-encoded URL separators like '/'when decoding the host name part of a URL, making it a *different* URL usingthe wrong host name when it is later retrieved.For example, a URL like `http://example.com%2F127.0.0.1/`, would be allowed bythe parser and get transposed into `http://example.com/127.0.0.1/`. This flawcan be used to circumvent filters, checks and more.

CVSS 5.3 · Medium · EPSS 2.5% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • https://github.com/curl/curl

    Versions
    • Fixed in 7.83.1: Affected

    No fix published

  • curl Debian:12

    Affected ranges
    • ECOSYSTEM: < 7.83.1-1

    Update to 7.83.1-1

  • curl Debian:13

    Affected ranges
    • ECOSYSTEM: < 7.83.1-1

    Update to 7.83.1-1

  • curl Debian:14

    Affected ranges
    • ECOSYSTEM: < 7.83.1-1

    Update to 7.83.1-1

  • curl Ubuntu:22.04:LTS

    Versions
    • 7.74.0-1.3ubuntu2
    • 7.74.0-1.3ubuntu3
    • 7.80.0-3
    • 7.81.0-1
    • 7.81.0-1ubuntu1.1
    Affected ranges
    • ECOSYSTEM: < 7.81.0-1ubuntu1.2

    Update to 7.81.0-1ubuntu1.2

Original sources

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