CVE-2021-39921

Description

NULL pointer exception in the Modbus dissector in Wireshark 3.4.0 to 3.4.9 and 3.2.0 to 3.2.17 allows denial of service via packet injection or crafted capture file

References

https://www.wireshark.org/security/wnpa-sec-2021-14.html

https://www.debian.org/security/2021/dsa-5019

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

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YEWTIRMC2MFQBZ2O5M4CJHJM4JPBHLXH/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/A6AJFIYIHS3TYDD2EBYBJ5KKE52X34BJ/

https://lists.debian.org/debian-lts-announce/2021/12/msg00015.html

https://gitlab.com/wireshark/wireshark/-/issues/17703

https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39921.json

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3