Rapid7 Vulnerability & Exploit Database

Debian: CVE-2021-4209: gnutls28 -- security update

Back to Search

Debian: CVE-2021-4209: gnutls28 -- security update

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
08/17/2022
Created
08/29/2022
Added
08/17/2022
Modified
09/01/2022

Description

A NULL pointer dereference flaw was found in GnuTLS. As Nettle's hash update functions internally call memcpy, providing zero-length input may cause undefined behavior. This flaw leads to a denial of service after authentication in rare circumstances.

Solution(s)

  • debian-upgrade-gnutls28

With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.

– Scott Cheney, Manager of Information Security, Sierra View Medical Center

;