vulnerability
Red Hat: CVE-2021-4209: GnuTLS: Null pointer dereference in MD_UPDATE
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:N/AC:L/Au:S/C:N/I:N/A:C) | Aug 24, 2022 | Jul 9, 2025 | Jul 10, 2025 |
Severity
7
CVSS
(AV:N/AC:L/Au:S/C:N/I:N/A:C)
Published
Aug 24, 2022
Added
Jul 9, 2025
Modified
Jul 10, 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
no-fix-redhat-rpm-package
References
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