CVE-2023-27537

Published Mar 30, 2023

Last updated 3 months ago

Overview

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.
Source
support@hackerone.com
NVD status
Modified

Risk scores

CVSS 3.1

Type
Primary
Base score
5.9
Impact score
3.6
Exploitability score
2.2
Vector string
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Severity
MEDIUM

Weaknesses

support@hackerone.com
CWE-415
nvd@nist.gov
CWE-415

Social media

Hype score
Not currently trending

Configurations