Vulnerabilities > CVE-2021-39923 - Excessive Iteration vulnerability in multiple products

CVSS 7.5 - HIGH

Attack vector

NETWORK

Attack complexity

LOW

Privileges required

NONE

Confidentiality impact

NONE

Integrity impact

NONE

Availability impact

HIGH

network

low complexity

wireshark

debian

CWE-834

NVD

Published: 2021-11-19

Updated: 2022-03-09

Summary

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

Vulnerable Configurations

Part	Description	Count
Application	Wireshark Wireshark Wireshark 3.2.0 Wireshark Wireshark 3.2.1 Wireshark Wireshark 3.2.2 Wireshark Wireshark 3.2.3 Wireshark Wireshark 3.2.4 Wireshark Wireshark 3.2.5 Wireshark Wireshark 3.2.6 Wireshark Wireshark 3.2.7 Wireshark Wireshark 3.2.8 Wireshark Wireshark 3.2.9 Wireshark Wireshark 3.2.10 Wireshark Wireshark 3.2.11 Wireshark Wireshark 3.2.12 Wireshark Wireshark 3.2.13 Wireshark Wireshark 3.2.14 Wireshark Wireshark 3.2.15 Wireshark Wireshark 3.2.16 Wireshark Wireshark 3.2.17 Wireshark Wireshark 3.4.0 Wireshark Wireshark 3.4.1 Wireshark Wireshark 3.4.2 Wireshark Wireshark 3.4.3 Wireshark Wireshark 3.4.4 Wireshark Wireshark 3.4.5 Wireshark Wireshark 3.4.6 Wireshark Wireshark 3.4.7 Wireshark Wireshark 3.4.8 Wireshark Wireshark 3.4.9	31
OS	Debian Debian Debian Linux 10.0 Debian Debian Linux 11.0 Debian Debian Linux 9.0	3

Common Weakness Enumeration (CWE)

CWE-834 - Excessive Iteration

Summary

Vulnerable Configurations

Common Weakness Enumeration (CWE)

References