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.
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 |
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 |