Double Free Affecting libcurl-devel package, versions <0:8.0.1-1.amzn2.0.1
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Test your applications- Snyk ID SNYK-AMZN2-LIBCURLDEVEL-5671996
- published 8 Jun 2023
- disclosed 30 Mar 2023
Introduced: 30 Mar 2023
CVE-2023-27537 Open this link in a new tabHow to fix?
Upgrade Amazon-Linux:2 libcurl-devel to version 0:8.0.1-1.amzn2.0.1 or higher.
This issue was patched in ALAS2-2023-2070.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libcurl-devel package and not the libcurl-devel package as distributed by Amazon-Linux.
See How to fix? for Amazon-Linux:2 relevant fixed versions and status.
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.