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Status published
Unknown
CVE-2022-43552
A use after free vulnerability exists in curl <7.87.0. Curl...
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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
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Affected Vendor
Affected Software
https://github.com/curl/curl
Vulnerable Versions:
Fixed in curl 7.87.0
Timeline
Official Publish:
February 9th, 2023
Last Modified:
October 27th, 2024
Added to House:
July 21st, 2026
CVSS Vectors
No vector data available