CVE-2021-34555: Null Pointer Dereference
OpenDMARC 1.4.1 and 1.4.1.1 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a multi-value From header field.
Affected Software
Remediation
Patch Available
Patch Available
Event History
Frequently Asked Questions
What is CVE-2021-34555?
CVE-2021-34555 is a vulnerability in OpenDMARC versions 1.4.1 and 1.4.1.1 that allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a multi-value From header field.
How severe is CVE-2021-34555?
CVE-2021-34555 has a severity rating of 7.5 (High).
Which software versions are affected by CVE-2021-34555?
OpenDMARC versions 1.4.1 and 1.4.1.1 are affected by CVE-2021-34555.
How can remote attackers exploit CVE-2021-34555?
Remote attackers can exploit CVE-2021-34555 by sending a multi-value From header field, which triggers a NULL pointer dereference and crashes the application.
Are there any available patches or fixes for CVE-2021-34555?
Yes, patches for CVE-2021-34555 are available. Please refer to the provided references for more information on how to apply the patches.