CVE Vulnerability

CVE-2021-4209

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.

6.5 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://gitlab.com/gnutls/gnutls/-/issues/1306 Third Party Advisory
https://access.redhat.com/security/cve/CVE-2021-4209 Third Party Advisory
https://gitlab.com/gnutls/gnutls/-/merge_requests/1503 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2044156 Issue Tracking Third Party Advisory
https://gitlab.com/gnutls/gnutls/-/commit/3db352734472d851318944db13be73da61300568 Patch Third Party Advisory
https://security.netapp.com/advisory/ntap-20220915-0005/ Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:gnu:gnutls:*:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:a:netapp:solidfire_&_hci_management_node:-:*:*:*:*:*:*:*
cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vmware_vsphere:*:*
Information

Published : 2022-08-24 04:15

Updated : 2022-10-27 04:57

NVD link : CVE-2021-4209

Mitre link : CVE-2021-4209

Products Affected

Hci Bootstrap Os

Netapp

CWE
CWE-476