FreeBSD : FreeBSD -- Kernel memory disclosure in freebsd32_ioctl (6b856e00-b30a-11e9-a87f-a4badb2f4699)

medium Nessus Plugin ID 127546

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Synopsis

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

Description

Due to insufficient initialization of memory copied to userland in the components listed above small amounts of kernel memory may be disclosed to userland processes. Impact : A user who can invoke 32-bit FreeBSD ioctls may be able to read the contents of small portions of kernel memory.

Such memory might contain sensitive information, such as portions of the file cache or terminal buffers. This information might be directly useful, or it might be leveraged to obtain elevated privileges in some way; for example, a terminal buffer might include a user-entered password.

Solution

Update the affected packages.

See Also

http://www.nessus.org/u?55063c82

Plugin Details

Severity: Medium

ID: 127546

File Name: freebsd_pkg_6b856e00b30a11e9a87fa4badb2f4699.nasl

Version: 1.4

Type: local

Published: 8/12/2019

Updated: 1/6/2020

Configuration: Enable paranoid mode

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

Vector: AV:N/AC:L/Au:S/C:C/I:N/A:N

Temporal Vector: E:U/RL:OF/RC:C

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

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

Temporal Vector: E:U/RL:O/RC:C

Vulnerability Information

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

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

Exploit Ease: No known exploits are available

Patch Publication Date: 7/30/2019

Vulnerability Publication Date: 7/24/2019

Reference Information

CVE: CVE-2019-5605

FreeBSD: SA-19:14.freebsd32