Описание
Z39.50 protocol dissector crash in Wireshark 4.6.0 to 4.6.6 and 4.4.0 to 4.4.16 allows denial of service
A flaw was found in Wireshark's Z39.50 protocol dissector. A heap buffer overflow can occur when the dissector processes malformed Z39.50 records with partial directory entries, as the pre-allocated array size is calculated using floor division and does not account for additional partial entries. An attacker could exploit this by convincing a user to open a specially crafted packet capture file, causing Wireshark to crash. This results in a denial of service.
Отчет
Moderate: A heap buffer overflow in Wireshark's Z39.50 protocol dissector can lead to a denial of service. This flaw requires user interaction, specifically opening a specially crafted packet capture file, limiting its immediate impact on typical server deployments.
Меры по смягчению последствий
Avoid opening capture files from untrusted sources.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 10 | wireshark | Fix deferred |
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Дополнительная информация
Статус:
EPSS
5.5 Medium
CVSS3
Связанные уязвимости
Z39.50 protocol dissector crash in Wireshark 4.6.0 to 4.6.6 and 4.4.0 to 4.4.16 allows denial of service
Z39.50 protocol dissector crash in Wireshark 4.6.0 to 4.6.6 and 4.4.0 to 4.4.16 allows denial of service
Z39.50 protocol dissector crash in Wireshark 4.6.0 to 4.6.6 and 4.4.0 ...
EPSS
5.5 Medium
CVSS3