CVE-2021-4190

Public Exploit

Description

Large loop in the Kafka dissector in Wireshark 3.6.0 allows denial of service via packet injection or crafted capture file

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.06%
Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory gentoo.org Vendor Advisory wireshark.org
Affected: Wireshark Foundation Wireshark
Published at:
Updated at:

References

Link Tags
https://www.wireshark.org/security/wnpa-sec-2021-22.html vendor advisory
https://gitlab.com/wireshark/wireshark/-/issues/17811 issue tracking patch exploit third party advisory
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-4190.json third party advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R5AEK3XTOIOGCGUILUFISMGX54YJXWGJ/ vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Q6XGBKWSQFCVYUN4ZK3O3NJIFP3OAFVT/ vendor advisory
https://security.gentoo.org/glsa/202210-04 third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-4190?
CVE-2021-4190 has been scored as a high severity vulnerability.
How to fix CVE-2021-4190?
To fix CVE-2021-4190, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-4190 being actively exploited in the wild?
It is possible that CVE-2021-4190 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-4190?
CVE-2021-4190 affects Wireshark Foundation Wireshark.
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