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CVE-2021-22945

CVE-2021-22945

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

When sending data to an MQTT server, libcurl <= 7.73.0 and 7.78.0 could in some circumstances erroneously keep a pointer to an already freed memory area and both use that again in a subsequent call to send data and also free it *again*.

CVSS 9.1 · Critical · EPSS 6.7% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • https://github.com/curl/curl

    Versions
    • curl 7.73.0 to and including 7.78.0: Affected

    No fix published

  • curl Debian:12

    Affected ranges
    • ECOSYSTEM: < 7.79.1-1

    Update to 7.79.1-1

  • curl Debian:13

    Affected ranges
    • ECOSYSTEM: < 7.79.1-1

    Update to 7.79.1-1

  • curl Debian:14

    Affected ranges
    • ECOSYSTEM: < 7.79.1-1

    Update to 7.79.1-1

  • curl Ubuntu:22.04:LTS

    Affected ranges
    • ECOSYSTEM: < 7.74.0-1.3ubuntu2

    Update to 7.74.0-1.3ubuntu2

Original sources

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