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CVE-2023-27537

Public on 2023-03-22
Modified on 2024-02-01
Description

The curl advisory describes this issue as follows:

libcurl supports sharing HSTS data between separate "handles". This sharing was introduced without considerations for doing 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.

Severity
Medium
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CVSS v3 Base Score
5.8
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Affected Packages

Platform Package Release Date Advisory
Amazon Linux 2 - Core curl 2023-06-05 16:39 ALAS2-2023-2070
Amazon Linux 2023 curl 2023-06-05 16:38 ALAS2023-2023-193

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 5.8 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:H
NVD CVSSv3 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H