Описание
HTTP3 dissector crash in Wireshark 4.6.0 and 4.6.1 allows denial of service
A flaw was found in the HTTP3 dissector in Wireshark. This issue occurs when malformed packets are decoded from a pcap file or the network, causing an excessive consumption of CPU and memory resources, 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 HTTP3 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 | Not affected | ||
| 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
HTTP3 dissector crash in Wireshark 4.6.0 and 4.6.1 allows denial of service
HTTP3 dissector crash in Wireshark 4.6.0 and 4.6.1 allows denial of service
HTTP3 dissector crash in Wireshark 4.6.0 and 4.6.1 allows denial of se ...
HTTP3 dissector crash in Wireshark 4.6.0 and 4.6.1 allows denial of service
Уязвимость анализатора трафика компьютерных сетей Wireshark, связанная с ненадлежащим управлением последовательным распределением памяти, позволяющая нарушителю вызвать отказ в обслуживании
EPSS
5.5 Medium
CVSS3