Out-of-bounds Write Affecting gnutls28 package, versions <3.6.7-4+deb10u7


0.0
high

Snyk CVSS

    Attack Complexity Low
    Availability High
Expand this section
Red Hat
7.5 high
Expand this section
SUSE
5.9 medium
Expand this section
NVD
7.5 high

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk ID SNYK-DEBIAN10-GNUTLS28-609778
  • published 5 Sep 2020
  • disclosed 4 Sep 2020

How to fix?

Upgrade Debian:10 gnutls28 to version 3.6.7-4+deb10u7 or higher.

NVD Description

Note: Versions mentioned in the description apply to the upstream gnutls28 package. See How to fix? for Debian:10 relevant versions.

An issue was discovered in GnuTLS before 3.6.15. A server can trigger a NULL pointer dereference in a TLS 1.3 client if a no_renegotiation alert is sent with unexpected timing, and then an invalid second handshake occurs. The crash happens in the application's error handling path, where the gnutls_deinit function is called after detecting a handshake failure.