vulnerability
Ubuntu: (Multiple Advisories) (CVE-2021-4209): GnuTLS vulnerabilities
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:N/AC:L/Au:S/C:N/I:N/A:C) | Mar 3, 2022 | Aug 5, 2022 | Jan 30, 2025 |
Severity
7
CVSS
(AV:N/AC:L/Au:S/C:N/I:N/A:C)
Published
Mar 3, 2022
Added
Aug 5, 2022
Modified
Jan 30, 2025
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
ubuntu-pro-upgrade-libgnutls30
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