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FreeBSD : zeek -- potential DoS vulnerabilities (2b5fc9c4-eaca-46e0-83d0-9b10c51c4b1b)

high Nessus Plugin ID 170924

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Synopsis

The remote FreeBSD host is missing one or more security-related updates.

Description

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the 2b5fc9c4-eaca-46e0-83d0-9b10c51c4b1b advisory.

 - 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.
 (2b5fc9c4-eaca-46e0-83d0-9b10c51c4b1b)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://github.com/zeek/zeek/releases/tag/v5.0.6

http://www.nessus.org/u?bdeb83a1

Plugin Details

Severity: High

ID: 170924

File Name: freebsd_pkg_2b5fc9c4eaca46e083d09b10c51c4b1b.nasl

Version: 1.0

Type: local

Published: 2/1/2023

Updated: 2/1/2023

Supported Sensors: Nessus

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:zeek, cpe:/o:freebsd:freebsd

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info

Exploit Ease: No known exploits are available

Patch Publication Date: 2/1/2023

Vulnerability Publication Date: 2/1/2023