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VULNERABILITIES

CVE-2023-27537 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:5.9 MEDIUMVector:CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://hackerone.com/reports/1897203 CVEExploitThird Party Advisory
https://security.gentoo.org/glsa/202310-12 CVEThird Party Advisory
https://security.netapp.com/advisory/ntap-20230420-0010/ CVEThird Party Advisory
https://hackerone.com/reports/1897203 [email protected]ExploitThird Party Advisory
https://security.gentoo.org/glsa/202310-12 [email protected]Third Party Advisory

see all 6 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-415Double Free[email protected]
CWE-415Double Free[email protected]

Affected Products

ProductVersions

Change History

8 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2023-27537
NVD Published Date:
Mar 30, 2023
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2023-27537 Details - Not Deferred