CVE-2021-4186: Null Pointer Dereference
Crash in the Gryphon dissector in Wireshark 3.4.0 to 3.4.10 allows denial of service via packet injection or crafted capture file
Affected Software
Event History
Frequently Asked Questions
What is CVE-2021-4186?
CVE-2021-4186 is a vulnerability in Wireshark 3.4.0 to 3.4.10 that allows denial of service through packet injection or crafted capture file.
How does CVE-2021-4186 affect Wireshark?
CVE-2021-4186 affects Wireshark versions 3.4.0 to 3.4.10 by causing a crash in the Gryphon dissector and allowing denial of service.
What is the severity of CVE-2021-4186?
CVE-2021-4186 has a severity rating of 7.5 out of 10, indicating a high level of threat.
How can denial of service occur through CVE-2021-4186?
Denial of service can occur through CVE-2021-4186 by exploiting the vulnerability in the Gryphon dissector in Wireshark, either through packet injection or using a crafted capture file.
Is there a fix available for CVE-2021-4186?
Yes, updating Wireshark to a version beyond 3.4.10 will fix the vulnerability CVE-2021-4186.