| Package | Affected versions | Patched versions |
|---|---|---|
| libcurl | = 7.31.0= 7.32.0= 7.33.0= 7.34.0= 7.35.0= 7.36.0= 7.37.0= 7.37.1= 7.38.0= 7.39 |
The darwinssl_connect_step1 function in lib/vtls/curl_darwinssl.c in libcurl 7.31.0 through 7.39.0, when using the DarwinSSL (aka SecureTransport) back-end for TLS, does not check if a cached TLS session validated the certificate when reusing the session, which allows man-in-the-middle attackers to spoof servers via a crafted certificate.
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