CVE-2013-6422

EPSS 0.25%

curl - unchecked tls/ssl certificate host name

Published: 12/23/2013Modified: 4/28/2026
Also known as:DEBIAN-CVE-2013-6422

Description

The GnuTLS backend in libcurl 7.21.4 through 7.33.0, when disabling digital signature verification (CURLOPT_SSL_VERIFYPEER), also disables the CURLOPT_SSL_VERIFYHOST check for CN or SAN host name fields, which makes it easier for remote attackers to spoof servers and conduct man-in-the-middle (MITM) attacks.

Affected packages (2)

References (1)