CVE-2016-3739

5.3 MEDIUM
Published: May 20, 2016 Modified: May 06, 2026
View on NVD

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://www.openwall.com/lists/oss-security/2024/03/27/4
Source: secalert@redhat.com
http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
Source: secalert@redhat.com
http://www.securityfocus.com/bid/90726
Source: secalert@redhat.com
http://www.securitytracker.com/id/1035907
Source: secalert@redhat.com
http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.495349
Source: secalert@redhat.com
https://curl.haxx.se/CVE-2016-3739.patch
Source: secalert@redhat.com
Vendor Advisory
https://curl.haxx.se/changes.html#7_49_0
Source: secalert@redhat.com
https://curl.haxx.se/docs/adv_20160518.html
Source: secalert@redhat.com
Vendor Advisory
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05320149
Source: secalert@redhat.com
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05390722
Source: secalert@redhat.com
https://security.gentoo.org/glsa/201701-47
Source: secalert@redhat.com
http://www.openwall.com/lists/oss-security/2024/03/27/4
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.securityfocus.com/bid/90726
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.securitytracker.com/id/1035907
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.495349
Source: af854a3a-2127-422b-91ae-364da2661108
https://curl.haxx.se/CVE-2016-3739.patch
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
https://curl.haxx.se/changes.html#7_49_0
Source: af854a3a-2127-422b-91ae-364da2661108
https://curl.haxx.se/docs/adv_20160518.html
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05320149
Source: af854a3a-2127-422b-91ae-364da2661108
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05390722
Source: af854a3a-2127-422b-91ae-364da2661108
https://security.gentoo.org/glsa/201701-47
Source: af854a3a-2127-422b-91ae-364da2661108

22 reference(s) from NVD

Quick Stats

CVSS v3 Score
5.3 / 10.0
EPSS (Exploit Probability)
1.1%
78th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

CWE-20

Affected Vendors

haxx

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