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.
Published: 2022-08-24
Score: 6.5 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-3070-1 gnutls28 security update
EUVD 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 Ubuntu USN USN-5550-1 GnuTLS vulnerabilities
Ubuntu USN Ubuntu USN USN-5750-1 GnuTLS vulnerability
History

No history.

Subscriptions

Gnu Gnutls
Netapp Active Iq Unified Manager Hci Bootstrap Os Hci Compute Node Solidfire \& Hci Management Node
Redhat Enterprise Linux
cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2024-08-03T17:16:04.444Z

Reserved: 2022-01-24T00:00:00.000Z

Link: CVE-2021-4209

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2022-08-24T16:15:09.927

Modified: 2024-11-21T06:37:09.190

Link: CVE-2021-4209

cve-icon Redhat

Severity : Low

Publid Date: 2021-12-22T00:00:00Z

Links: CVE-2021-4209 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses