Описание
MEGACO dissector infinite loop in Wireshark 4.6.0 to 4.6.1 and 4.4.0 to 4.4.11 allows denial of service
A flaw was found in the MEGACO dissector in Wireshark. This issue occurs when malformed packets are decoded from a pcap file or the network, causing an infinite loop and resulting in a denial of service.
Отчет
This vulnerability will cause a crash in Wireshark with no other security impact. Additionally, this issue can only be exploited when a specially crafted pcap file is processed. For these reasons, this flaw has been rated with a moderate severity.
Меры по смягчению последствий
If the MEGACO protocol dissector is not being used, it can be disabled via the "Enabled Protocols" dialog box in the Wireshark GUI application. This will also disable the protocol dissector when using "tshark", the command line tool. See the links below for instructions to disable a protocol in Wireshark, specifically the "Control Protocol Dissection" section and the "disabled_protos" configuration file option. https://www.wireshark.org/docs/wsug_html_chunked/ChCustProtocolDissectionSection.html https://www.wireshark.org/docs/wsug_html_chunked/ChAppFilesConfigurationSection.html
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 10 | wireshark | Fix deferred | ||
| Red Hat Enterprise Linux 6 | wireshark | Out of support scope | ||
| Red Hat Enterprise Linux 7 | wireshark | Out of support scope | ||
| Red Hat Enterprise Linux 8 | wireshark | Not affected | ||
| Red Hat Enterprise Linux 9 | wireshark | Not affected |
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Дополнительная информация
Статус:
EPSS
5.5 Medium
CVSS3
Связанные уязвимости
MEGACO dissector infinite loop in Wireshark 4.6.0 to 4.6.1 and 4.4.0 to 4.4.11 allows denial of service
MEGACO dissector infinite loop in Wireshark 4.6.0 to 4.6.1 and 4.4.0 to 4.4.11 allows denial of service
MEGACO dissector infinite loop in Wireshark 4.6.0 to 4.6.1 and 4.4.0 t ...
MEGACO dissector infinite loop in Wireshark 4.6.0 to 4.6.1 and 4.4.0 to 4.4.11 allows denial of service
EPSS
5.5 Medium
CVSS3