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.
Metrics
Affected Vendors & Products
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 |
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
No history.
Status: PUBLISHED
Assigner: redhat
Published:
Updated: 2024-08-03T17:16:04.444Z
Reserved: 2022-01-24T00:00:00
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.
Debian DLA
EUVD
Ubuntu USN