CVE-2021-39920

high

Description

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

References

https://gitlab.com/wireshark/wireshark/-/issues/17705

https://www.wireshark.org/security/wnpa-sec-2021-15.html

https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39920.json

https://lists.fedoraproject.org/archives/list/[email protected]/message/A6AJFIYIHS3TYDD2EBYBJ5KKE52X34BJ/

https://lists.fedoraproject.org/archives/list/[email protected]/message/YEWTIRMC2MFQBZ2O5M4CJHJM4JPBHLXH/

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

Details

Source: MITRE

Published: 2021-11-18

Updated: 2021-12-16

Type: CWE-476

Risk Information

CVSS v2

Base Score: 5

Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

Impact Score: 2.9

Exploitability Score: 10

Severity: MEDIUM

CVSS v3

Base Score: 7.5

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

Impact Score: 3.6

Exploitability Score: 3.9

Severity: HIGH