CURL-CVE-2024-6874
- Source
- https://curl.se/docs/CVE-2024-6874.html
- Import Source
- https://curl.se/docs/CURL-CVE-2024-6874.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CURL-CVE-2024-6874
- Aliases
- Published
- 2024-07-24T08:00:00Z
- Modified
- 2026-05-19T09:30:07.621563392Z
- Summary
- macidn punycode buffer overread
- Details
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libcurl's URL API function curlurlget() offers punycode conversions, to and from IDN. Asking to convert a name that is exactly 256 bytes, libcurl ends up reading outside of a stack based buffer when built to use the macidn IDN backend. The conversion function then fills up the provided buffer exactly - but does not null-terminate the string.
This flaw can lead to stack contents accidentally getting returned as part of the converted string.
- Database specific
{ "last_affected": "8.8.0", "award": { "currency": "USD", "amount": "540" }, "severity": "Low", "affects": "lib", "CWE": { "desc": "Buffer Over-read", "id": "CWE-126" }, "www": "https://curl.se/docs/CVE-2024-6874.html", "URL": "https://curl.se/docs/CVE-2024-6874.json", "issue": "https://hackerone.com/reports/2604391", "package": "curl" }- References
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- Credits
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- z2_ - FINDER
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- z2_ - REMEDIATION_DEVELOPER
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