Improper Certificate Validation Affecting openfortivpn package, versions <1.12.0-1


Severity

Recommended
low

Based on Debian security rating.

Threat Intelligence

EPSS
0.18% (56th percentile)

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  • Snyk IDSNYK-DEBIAN11-OPENFORTIVPN-558952
  • published27 Feb 2020
  • disclosed27 Feb 2020

Introduced: 27 Feb 2020

CVE-2020-7043  (opens in a new tab)
CWE-295  (opens in a new tab)

How to fix?

Upgrade Debian:11 openfortivpn to version 1.12.0-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream openfortivpn package and not the openfortivpn package as distributed by Debian. See How to fix? for Debian:11 relevant fixed versions and status.

An issue was discovered in openfortivpn 1.11.0 when used with OpenSSL before 1.0.2. tunnel.c mishandles certificate validation because hostname comparisons do not consider '\0' characters, as demonstrated by a good.example.com\x00evil.example.com attack.

CVSS Scores

version 3.1