CVE-2016-3739 Information

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.

CVSS Vector

CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N

Reference

http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html http://www.securityfocus.com/bid/90726 http://www.securitytracker.com/id/1035907 http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.495349 https://curl.haxx.se/changes.html7_49_0 https://curl.haxx.se/changes.html7_49_0 https://curl.haxx.se/CVE-2016-3739.patch https://curl.haxx.se/CVE-2016-3739.patch https://curl.haxx.se/docs/adv_20160518.html https://curl.haxx.se/docs/adv_20160518.html https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05320149 https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05390722 https://security.gentoo.org/glsa/201701-47 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. 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:::::::*

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

HIGH

Base Score

NONE

Base Severity

5.3