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CVE-2023-28319

CVE-2023-28319

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

A use after free vulnerability exists in curl <v8.1.0 in the way libcurl offers a feature to verify an SSH server's public key using a SHA 256 hash. When this check fails, libcurl would free the memory for the fingerprint before it returns an error message containing the (now freed) hash. This flaw risks inserting sensitive heap-based data into the error message that might be shown to users or otherwise get leaked and revealed.

CVSS 7.5 · High · EPSS 2.5% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • https://github.com/curl/curl

    Versions
    • Fixed in 8.1.0: Affected

    No fix published

  • curl Debian:12

    Affected ranges
    • ECOSYSTEM: < 7.88.1-10

    Update to 7.88.1-10

  • curl Debian:13

    Affected ranges
    • ECOSYSTEM: < 7.88.1-10

    Update to 7.88.1-10

  • curl Debian:14

    Affected ranges
    • ECOSYSTEM: < 7.88.1-10

    Update to 7.88.1-10

Original sources

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