Use After Free in Apple Macos
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.
Vulnerability class: Use-After-Free
EPSS: 0.025 (83.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Apple Macos
- Haxx Curl
- Splunk Universal_forwarder — versions 9.1.0
- N/a Https://github.com/curl/curl — versions Fixed in curl 7.87.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- support@hackerone.com (Exploit, Third Party Advisory, Issue Tracking)
- support@hackerone.com (Vendor Advisory)
- support@hackerone.com (Third Party Advisory)
- support@hackerone.com (mailing-list, Mailing List, Third Party Advisory)
- support@hackerone.com (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2022-43552?
- CVE-2022-43552 is a medium-severity vulnerability in Apple Macos, classified under Use After Free. CVSS score: 5.9/10. Published 2023-02-09.
- How severe is CVE-2022-43552?
- Medium severity. CVSS v3 base score is 5.9 out of 10.
- Is CVE-2022-43552 known to be exploited?
- 7 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.