A double free vulnerability exists in libcurl <8.0.0 when sharing HSTS data between separate "handles". This sharing was introduced without considerations for do this sharing across separate threads but there was no indication of this fact in the documentation. Due to missing mutexes or thread locks, two threads sharing the same HSTS data could end up doing a double-free or use-after-free.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: hackerone

Published: 2023-03-30T00:00:00

Updated: 2024-08-02T12:16:35.551Z

Reserved: 2023-03-02T00:00:00

Link: CVE-2023-27537

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2023-03-30T20:15:07.617

Modified: 2024-11-21T07:53:07.407

Link: CVE-2023-27537

cve-icon Redhat

Severity : Low

Publid Date: 2023-03-20T00:00:00Z

Links: CVE-2023-27537 - Bugzilla