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FreeBSD : FreeBSD -- Information leak in kldstat(2) (759059ac-dab3-11e7-b5af-a4badb2f4699)

low Nessus Plugin ID 105066

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Synopsis

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

Description

The kernel does not properly clear the memory of the kld_file_stat structure before filling the data. Since the structure filled by the kernel is allocated on the kernel stack and copied to userspace, a leak of information from the kernel stack is possible. Impact : Some bytes from the kernel stack can be observed in userspace.

Solution

Update the affected packages.

See Also

http://www.nessus.org/u?2ee5941a

Plugin Details

Severity: Low

ID: 105066

File Name: freebsd_pkg_759059acdab311e7b5afa4badb2f4699.nasl

Version: 3.5

Type: local

Published: 12/7/2017

Updated: 1/4/2021

Configuration: Enable paranoid mode

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 1.4

CVSS v2

Risk Factor: Low

Base Score: 2.1

Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:N/A:N

CVSS v3

Risk Factor: Low

Base Score: 3.3

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Vulnerability Information

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

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

Patch Publication Date: 12/6/2017

Vulnerability Publication Date: 11/15/2017

Reference Information

CVE: CVE-2017-1088

FreeBSD: SA-17:10.kldstat