CVE-2021-39923 Information

Description

Large loop in the PNRP 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

CVSS Vector

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

Reference

https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39923.json https://www.wireshark.org/security/wnpa-sec-2021-11.html https://gitlab.com/wireshark/wireshark/-/issues/17684 https://www.debian.org/security/2021/dsa-5019 https://lists.debian.org/debian-lts-announce/2021/12/msg00015.html

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5