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FreeBSD: VID-60D4D31A-A573-41BD-8C1E-5AF7513C1EE9: zeek -- potential DoS vulnerabilities

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FreeBSD: VID-60D4D31A-A573-41BD-8C1E-5AF7513C1EE9: zeek -- potential DoS vulnerabilities

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
11/09/2022
Created
11/11/2022
Added
11/09/2022
Modified
11/09/2022

Description

Tim Wojtulewicz of Corelight reports:

Fix an issue where a specially-crafted FTP packet can

cause Zeek to spend large amounts of time attempting to

search for valid commands in the data stream.

Fix a possible overflow in the Zeek dictionary code

that may lead to a memory leak.

Fix an issue where a specially-crafted packet can

cause Zeek to spend large amounts of time reporting

analyzer violations.

Fix a possible assert and crash in the HTTP analyzer

when receiving a specially crafted packet.

Fix an issue where a specially-crafted HTTP or SMTP

packet can cause Zeek to spend a large amount of time

attempting to search for filenames within the packet data.

Fix two separate possible crashes when converting

processed IP headers for logging via the raw_packet event

handlers.

Solution(s)

  • freebsd-upgrade-package-zeek

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