Use After Free Affecting curl package, versions <8.1.0-r0
Threat Intelligence
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk ID SNYK-ALPINE316-CURL-5561317
- published 17 May 2023
- disclosed 26 May 2023
Introduced: 17 May 2023
CVE-2023-28319 Open this link in a new tabHow to fix?
Upgrade Alpine:3.16 curl to version 8.1.0-r0 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream curl package and not the curl package as distributed by Alpine.
See How to fix? for Alpine:3.16 relevant fixed versions and status.
A use after free vulnerability exists in curl <v8.1.0 in the way libcurl offers a feature to verify an SSH server's public key using a SHA 256 hash. When this check fails, libcurl would free the memory for the fingerprint before it returns an error message containing the (now freed) hash. This flaw risks inserting sensitive heap-based data into the error message that might be shown to users or otherwise get leaked and revealed.
References
- https://hackerone.com/reports/1913733
- https://security.netapp.com/advisory/ntap-20230609-0009/
- https://support.apple.com/kb/HT213843
- https://support.apple.com/kb/HT213844
- https://support.apple.com/kb/HT213845
- http://seclists.org/fulldisclosure/2023/Jul/47
- http://seclists.org/fulldisclosure/2023/Jul/48
- http://seclists.org/fulldisclosure/2023/Jul/52
- https://security.gentoo.org/glsa/202310-12