vulnerability

Wireshark : CVE-2021-39923 : PNRP dissector large loop

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Severity

CVSS

(AV:N/AC:L/Au:N/C:N/I:N/A:P)

Published

Nov 19, 2021

Added

Dec 9, 2021

Modified

Mar 30, 2026

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

Solutions

wireshark-upgrade-3_2_18wireshark-upgrade-3_4_10

References

CVE-2021-39923
https://attackerkb.com/topics/CVE-2021-39923
CWE-834
EUVD-EUVD-2021-26279
https://euvd.enisa.europa.eu/vulnerability/EUVD-2021-26279
https://www.wireshark.org/security/wnpa-sec-2021-11.html

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