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.
Analysis and contextual insights are available on OpenCVE Cloud.
Remediation
No vendor fix or workaround currently provided.
Additional remediation guidance may be available on OpenCVE Cloud.
Tracking
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Advisories
| Source | ID | Title |
|---|---|---|
Debian DLA |
DLA-3070-1 | gnutls28 security update |
EUVD |
EUVD-2021-34067 | 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. |
Ubuntu USN |
USN-5550-1 | GnuTLS vulnerabilities |
Ubuntu USN |
USN-5750-1 | GnuTLS vulnerability |
References
History
No history.
Status: PUBLISHED
Assigner: redhat
Published:
Updated: 2024-08-03T17:16:04.444Z
Reserved: 2022-01-24T00:00:00.000Z
Link: CVE-2021-4209
No data.
Status : Modified
Published: 2022-08-24T16:15:09.927
Modified: 2024-11-21T06:37:09.190
Link: CVE-2021-4209
OpenCVE Enrichment
No data.
Weaknesses
Debian DLA
EUVD
Ubuntu USN