Upstream information

CVE-2016-3739 at MITRE

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.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having moderate severity.

CVSS v2 Scores
  National Vulnerability Database
Base Score 2.6
Vector AV:N/AC:H/Au:N/C:N/I:P/A:N
Access Vector Network
Access Complexity High
Authentication None
Confidentiality Impact None
Integrity Impact Partial
Availability Impact None
CVSS v3 Scores
  National Vulnerability Database
Base Score 5.3
Vector CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N
Access Vector Network
Access Complexity High
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality Impact None
Integrity Impact High
Availability Impact None
CVSSv3 Version 3

Note from the SUSE Security Team

This problem only affects curl when built against mbedtls or polarssl. We build curl against openssl, which is not affected by this problem. So no SUSE Linux or openSUSE products are affected by this problem.

SUSE Bugzilla entry: 982778 [RESOLVED / UPSTREAM]

No SUSE Security Announcements cross referenced.