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CVE-2023-28320

CVE-2023-28320

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

A denial of service vulnerability exists in curl <v8.1.0 in the way libcurl provides several different backends for resolving host names, selected at build time. If it is built to use the synchronous resolver, it allows name resolves to time-out slow operations using `alarm()` and `siglongjmp()`. When doing this, libcurl used a global buffer that was not mutex protected and a multi-threaded application might therefore crash or otherwise misbehave.

CVSS 5.9 · Medium · EPSS 2.7% · 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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