CVE-2023-28320
A denial of service vulnerability exists in curl <v8.1.0 in the way libcurl provides several different backends for resolving host names, selected at build time. If it is built to use the synchronous resolver, it allows name resolves to time-out slow operations using `alarm()` and `siglongjmp()`. When doing this, libcurl used a global buffer that was not mutex protected and a multi-threaded application might therefore crash or otherwise misbehave.
- Score
- CVSS 3.1 5.9 Medium
- Status
- Modified - support@hackerone.com
- Published
- 2023-05-26
- Last modified
- 2026-10-23
- Weaknesses
- CWE-362, CWE-400
Affected products
- Macos (Apple)
- Curl (Haxx)
- Clustered Data Ontap (Netapp)
- H300s Firmware (Netapp)
- H410s Firmware (Netapp)
- H500s Firmware (Netapp)
- H700s Firmware (Netapp)
- Ontap Antivirus Connector (Netapp)
References
- https://hackerone.com/reports/1929597
- 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/52
- http://seclists.org/fulldisclosure/2023/Jul/48
- http://seclists.org/fulldisclosure/2023/Jul/47
- https://security.gentoo.org/glsa/202310-12
