🛡️ CVE-2023-27537
🟡 CVSS 5.9 — Medium ⚠️ Exploit Public CWE-415 NVD
5.9
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

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.

Details

Severity MEDIUM
CVSS Score 5.9
CVSS Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE CWE-415
Public Exploit ⚠️ Yes
Source NVD
Published 2023-03-30
Updated 2026-06-08
Modified 2024-11-21
Fix URL N/A

Affected Packages

Software From version Fixed in
active-iq-unified-manager
brocade-fabric-operating-system-firmware
clustered-data-ontap
h300s-firmware
h410s-firmware
h500s-firmware
h700s-firmware
libcurl
universal-forwarder

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