Medium severity5.3NVD Advisory· Published May 20, 2016· Updated May 6, 2026
CVE-2016-3739
CVE-2016-3739
Description
The (1) mbed_connect_step1 function in lib/vtls/mbedtls.c and (2) polarssl_connect_step1 function in lib/vtls/polarssl.c in cURL and libcurl before 7.49.0, when using SSLv3 or making a TLS connection to a URL that uses a numerical IP address, allow remote attackers to spoof servers via an arbitrary valid certificate.
Affected products
37cpe:2.3:a:haxx:curl:7.21.0:*:*:*:*:*:*:*+ 36 more
- cpe:2.3:a:haxx:curl:7.21.0:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:curl:7.21.1:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:curl:7.21.2:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:curl:7.21.3:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:curl:7.21.4:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:curl:7.21.5:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:curl:7.21.6:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:curl:7.21.7:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:curl:7.22.0:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:curl:7.23.0:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:curl:7.23.1:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:curl:7.24.0:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:curl:7.25.0:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:curl:7.26.0:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:curl:7.27.0:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:curl:7.28.0:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:curl:7.28.1:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:curl:7.29.0:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:curl:7.30.0:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:curl:7.31.0:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:curl:7.32.0:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:curl:7.33.0:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:curl:7.34.0:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:curl:7.35.0:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:curl:7.36.0:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:curl:7.38.0:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:curl:7.39.0:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:curl:7.40.0:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:curl:7.41.0:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:curl:7.42.0:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:curl:7.42.1:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:curl:7.43.0:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:curl:7.44.0:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:curl:7.45.0:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:curl:7.46.0:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:curl:7.47.0:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:curl:7.48.0:*:*:*:*:*:*:*
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
11- curl.haxx.se/CVE-2016-3739.patchnvdVendor Advisory
- curl.haxx.se/docs/adv_20160518.htmlnvdVendor Advisory
- www.openwall.com/lists/oss-security/2024/03/27/4nvd
- www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.htmlnvd
- www.securityfocus.com/bid/90726nvd
- www.securitytracker.com/id/1035907nvd
- www.slackware.com/security/viewer.phpnvd
- curl.haxx.se/changes.htmlnvd
- h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplaynvd
- h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplaynvd
- security.gentoo.org/glsa/201701-47nvd
News mentions
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