CVE-2022-43552
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.
- Affected products
- Alt Linux, Almalinux, Astra Linux, Centos, Ibm Aix, Linuxmint, Apple Macos, Red Hat
- Haxx Curl
- < 7.87.0
- Fix
- Available
- CVSS 3.1
- 5.9 MEDIUM
- EPSS
- 2.5% (83th percentile)
- Weakness
- CWE-416
- NVD status
- Modified
- Published
- 2023-02-09
CVE-2022-43552 at NVD
No indexed exploits for CVE-2022-43552 yet
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No exploit for CVE-2022-43552 has been indexed yet. Our index is built from live traffic and upstream syncs, so this page can only say what it knows — not that no exploit exists.