Vulnerability Description
A use after free vulnerability exists in curl <7.87.0. Curl can be asked to *tunnel* virtually all protocols it supports through an HTTP proxy. HTTP proxies can (and often do) deny such tunnel operations. When getting denied to tunnel the specific protocols SMB or TELNET, curl would use a heap-allocated struct after it had been freed, in its transfer shutdown code path.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Haxx | Curl | < 7.87.0 |
| Apple | Macos | >= 13.0, < 13.3 |
| Splunk | Universal Forwarder | >= 8.2.0, < 8.2.12 |
Related Weaknesses (CWE)
References
- http://seclists.org/fulldisclosure/2023/Mar/17Mailing ListThird Party Advisory
- https://hackerone.com/reports/1764858ExploitIssue TrackingThird Party Advisory
- https://security.gentoo.org/glsa/202310-12Third Party Advisory
- https://security.netapp.com/advisory/ntap-20230214-0002/Vendor Advisory
- https://support.apple.com/kb/HT213670Third Party Advisory
- http://seclists.org/fulldisclosure/2023/Mar/17Mailing ListThird Party Advisory
- https://hackerone.com/reports/1764858ExploitIssue TrackingThird Party Advisory
- https://security.gentoo.org/glsa/202310-12Third Party Advisory
- https://security.netapp.com/advisory/ntap-20230214-0002/Vendor Advisory
- https://support.apple.com/kb/HT213670Third Party Advisory
FAQ
What is CVE-2022-43552?
CVE-2022-43552 is a vulnerability with a CVSS score of 5.9 (MEDIUM). A use after free vulnerability exists in curl <7.87.0. Curl can be asked to *tunnel* virtually all protocols it supports through an HTTP proxy. HTTP proxies can (and often do) deny such tunnel operati...
How severe is CVE-2022-43552?
CVE-2022-43552 has been rated MEDIUM with a CVSS base score of 5.9/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-43552?
Check the references section above for vendor advisories and patch information. Affected products include: Haxx Curl, Apple Macos, Splunk Universal Forwarder.