Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2016-3739

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.

Published

2016-05-20T14:59:05.450

Last Modified

2025-04-12T10:46:40.837

Status

Deferred

Source

[email protected]

Severity

CVSSv3.0: 5.3 (MEDIUM)

CVSSv2 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
Exploitability Score

4.9

Impact Score

2.9

Weaknesses
  • Type: Primary
    CWE-20
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application haxx curl 7.21.0 Yes
Application haxx curl 7.21.1 Yes
Application haxx curl 7.21.2 Yes
Application haxx curl 7.21.3 Yes
Application haxx curl 7.21.4 Yes
Application haxx curl 7.21.5 Yes
Application haxx curl 7.21.6 Yes
Application haxx curl 7.21.7 Yes
Application haxx curl 7.22.0 Yes
Application haxx curl 7.23.0 Yes
Application haxx curl 7.23.1 Yes
Application haxx curl 7.24.0 Yes
Application haxx curl 7.25.0 Yes
Application haxx curl 7.26.0 Yes
Application haxx curl 7.27.0 Yes
Application haxx curl 7.28.0 Yes
Application haxx curl 7.28.1 Yes
Application haxx curl 7.29.0 Yes
Application haxx curl 7.30.0 Yes
Application haxx curl 7.31.0 Yes
Application haxx curl 7.32.0 Yes
Application haxx curl 7.33.0 Yes
Application haxx curl 7.34.0 Yes
Application haxx curl 7.35.0 Yes
Application haxx curl 7.36.0 Yes
Application haxx curl 7.38.0 Yes
Application haxx curl 7.39.0 Yes
Application haxx curl 7.40.0 Yes
Application haxx curl 7.41.0 Yes
Application haxx curl 7.42.0 Yes
Application haxx curl 7.42.1 Yes
Application haxx curl 7.43.0 Yes
Application haxx curl 7.44.0 Yes
Application haxx curl 7.45.0 Yes
Application haxx curl 7.46.0 Yes
Application haxx curl 7.47.0 Yes
Application haxx curl 7.48.0 Yes
References