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Ubuntu: (Multiple Advisories) (CVE-2021-4209): GnuTLS vulnerability

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Ubuntu: (Multiple Advisories) (CVE-2021-4209): GnuTLS vulnerability

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
03/03/2022
Created
08/29/2022
Added
08/05/2022
Modified
11/30/2022

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)

  • ubuntu-upgrade-libgnutls30
  • ubuntu-upgrade-ubuntu

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