FreeBSD: VID-2B5FC9C4-EACA-46E0-83D0-9B10C51C4B1B: zeek -- potential DoS vulnerabilities

FreeBSD: VID-2B5FC9C4-EACA-46E0-83D0-9B10C51C4B1B: zeek -- potential DoS vulnerabilities

Severity

4

CVSS

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

Published

02/01/2023

Created

02/07/2023

Added

02/03/2023

Modified

02/03/2023

Description

Tim Wojtulewicz of Corelight reports:

A missing field in the SMB FSControl script-land record could

cause a heap buffer overflow when receiving packets containing

those header types.

Receiving a series of packets that start with HTTP/1.0

and then switch to HTTP/0.9 could cause Zeek to spend a

large amount of time processing the packets.

Receiving large numbers of FTP commands sequentially

from the network with bad data in them could cause Zeek

to spend a large amount of time processing the packets,

and generate a large amount of events.

Solution(s)

• freebsd-upgrade-package-zeek