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authorDaniel Stenberg <daniel@haxx.se>2021-03-22 13:39:37 +0100
committerDaniel Stenberg <daniel@haxx.se>2021-04-19 08:16:02 +0200
commiteff614fb0242cb37d33f89e2e74a93cef5203aed (patch)
tree0b17f5b8bd993f9b9140499bddd76dde9b9750b0 /docs/libcurl/opts
parentcf65d4237e097ace65e17580407ce56487823a47 (diff)
downloadcurl-eff614fb0242cb37d33f89e2e74a93cef5203aed.tar.gz
vtls: refuse setting any SSL version
... previously they were supported if a TLS library would (unexpectedly) still support them, but from this change they will be refused already in curl_easy_setopt(). SSLv2 and SSLv3 have been known to be insecure for many years now. Closes #6773
Diffstat (limited to 'docs/libcurl/opts')
-rw-r--r--docs/libcurl/opts/CURLOPT_SSLVERSION.38
1 files changed, 5 insertions, 3 deletions
diff --git a/docs/libcurl/opts/CURLOPT_SSLVERSION.3 b/docs/libcurl/opts/CURLOPT_SSLVERSION.3
index 8cfcdbe7f..2841c160b 100644
--- a/docs/libcurl/opts/CURLOPT_SSLVERSION.3
+++ b/docs/libcurl/opts/CURLOPT_SSLVERSION.3
@@ -5,7 +5,7 @@
.\" * | (__| |_| | _ <| |___
.\" * \___|\___/|_| \_\_____|
.\" *
-.\" * Copyright (C) 1998 - 2019, 2018, Daniel Stenberg, <daniel@haxx.se>, et al.
+.\" * Copyright (C) 1998 - 2021, Daniel Stenberg, <daniel@haxx.se>, et al.
.\" *
.\" * This software is licensed as described in the file COPYING, which
.\" * you should have received as part of this distribution. The terms
@@ -43,9 +43,9 @@ default TLS v1.0 since 7.39.0 (unless the TLS library has a stricter rule).
.IP CURL_SSLVERSION_TLSv1
TLS v1.0 or later
.IP CURL_SSLVERSION_SSLv2
-SSL v2 (but not SSLv3)
+SSL v2 - refused
.IP CURL_SSLVERSION_SSLv3
-SSL v3 (but not SSLv2)
+SSL v3 - refused
.IP CURL_SSLVERSION_TLSv1_0
TLS v1.0 or later (Added in 7.34.0)
.IP CURL_SSLVERSION_TLSv1_1
@@ -102,6 +102,8 @@ if(curl) {
}
.fi
.SH AVAILABILITY
+SSLv2 and SSLv3 are refused completely since curl 7.77.0
+
SSLv2 is disabled by default since 7.18.1. Other SSL versions availability may
vary depending on which backend libcurl has been built to use.