Detections
Analytics

FreeBSD : zeek -- several vulnerabilities (d4d21998-bdc4-4a09-9849-2898d9b41459)

high Nessus Plugin ID 153820

Language:

Synopsis

The remote FreeBSD host is missing a security-related update.

Description

Tim Wojtulewicz of Corelight reports :

Paths from log stream make it into system() unchecked, potentially leading to commands being run on the system unintentionally. This requires either bad scripting or a malicious package to be installed, and is considered low severity.

Fix potential unbounded state growth in the PIA analyzer when receiving a connection with either a large number of zero-length packets, or one which continues ack-ing unseen segments. It is possible to run Zeek out of memory in these instances and cause it to crash. Due to the possibility of this happening with packets received from the network, this is a potential DoS vulnerability.

Solution

Update the affected package.

See Also

https://github.com/zeek/zeek/releases/tag/v4.0.4

http://www.nessus.org/u?55add2b8

Plugin Details

Severity: High

ID: 153820

File Name: freebsd_pkg_d4d21998bdc44a0998492898d9b41459.nasl

Version: 1.1

Type: local

Published: 10/1/2021

Updated: 10/1/2021

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

Patch Publication Date: 9/22/2021

Vulnerability Publication Date: 8/26/2021