CVE-2021-4190: Large loop in the Kafka dissector in Wireshark 3.6.0 allows denial of service via packet injection or crafted capture file

High severity · published Dec 30, 2021

CVE-2021-4190

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

7.5

CVSS

3.3%

EPSS

On KEV

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack vector

Network

Complexity

Low

Privileges

None

User interaction

None

Confidentiality

None

Integrity

None

Availability

High

Scope

Unchanged

Exploitation

Is it being used?

Exploit prediction (EPSS)3.3% · higher than 89% of CVEs

Exploited in the wildNo evidence yet

CISA KEVNot listed

Ransomware campaign useNot known

Affected products

Which versions

Fedora · Fedoraproject

34; 35 · source: NVD

Wireshark · Wireshark

3.4.0 before 3.4.12; 3.6.0 · source: NVD

Affected product

Fedora

Fedoraproject

All Fedora CVEs

References

NVD

https://nvd.nist.gov/vuln/detail/CVE-2021-4190

CVE.org

https://www.cve.org/CVERecord?id=CVE-2021-4190

Third Party Advisory

https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-4190.json

Exploit

https://gitlab.com/wireshark/wireshark/-/issues/17811

lists.fedoraproject.org

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Q6XGBKWSQFCVYUN4ZK3O3NJIFP3OAFVT/

lists.fedoraproject.org

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R5AEK3XTOIOGCGUILUFISMGX54YJXWGJ/

Third Party Advisory

https://security.gentoo.org/glsa/202210-04

Vendor Advisory

https://www.wireshark.org/security/wnpa-sec-2021-22.html