Improper Input Validation Affecting curl package, versions <7.34.0-1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.25% (66th percentile)

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  • Snyk IDSNYK-DEBIAN9-CURL-358447
  • published23 Dec 2013
  • disclosed23 Dec 2013

Introduced: 23 Dec 2013

CVE-2013-6422  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

Upgrade Debian:9 curl to version 7.34.0-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream curl package and not the curl package as distributed by Debian. See How to fix? for Debian:9 relevant fixed versions and status.

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.

CVSS Scores

version 3.1