Virtuozzo 6 : parallels-server-bm-release / shaman / vzkernel / etc (VZA-2019-033)

Medium Nessus Plugin ID 124409

Synopsis

The remote Virtuozzo host is missing a security update.

Description

According to the version of the parallels-server-bm-release / shaman / vzkernel / etc packages installed, the Virtuozzo installation on the remote host is affected by the following vulnerability :

- A vulnerability was found in the fs/inode.c:inode_init_owner() function logic of the Linux kernel that allows local users to create files with an unintended group ownership and with group execution and SGID permission bits set, in a scenario where a directory is SGID and belongs to a certain group and is writable by a user who is not a member of this group. This can lead to excessive permissions granted in case when they should not.

Note that Tenable Network Security has extracted the preceding description block directly from the Virtuozzo security advisory.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Update the affected parallels-server-bm-release / shaman / vzkernel / etc package.

See Also

https://virtuozzosupport.force.com/s/article/VZA-2019-033

https://access.redhat.com/errata/RHSA-2019:0717

Plugin Details

Severity: Medium

ID: 124409

File Name: Virtuozzo_VZA-2019-033.nasl

Version: 1.2

Type: local

Published: 2019/04/30

Updated: 2019/05/17

Dependencies: 12634

Risk Information

Risk Factor: Medium

CVSS v2.0

Base Score: 4.6

Temporal Score: 3.6

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

Temporal Vector: CVSS2#E:POC/RL:OF/RC:C

CVSS v3.0

Base Score: 7.8

Temporal Score: 7

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

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:virtuozzo:virtuozzo:parallels-server-bm-release, p-cpe:/a:virtuozzo:virtuozzo:shaman, p-cpe:/a:virtuozzo:virtuozzo:vzkernel, p-cpe:/a:virtuozzo:virtuozzo:vzkernel-devel, p-cpe:/a:virtuozzo:virtuozzo:vzkernel-firmware, p-cpe:/a:virtuozzo:virtuozzo:vzmodules, p-cpe:/a:virtuozzo:virtuozzo:vzmodules-devel, cpe:/o:virtuozzo:virtuozzo:6

Required KB Items: Host/local_checks_enabled, Host/Virtuozzo/release, Host/Virtuozzo/rpm-list

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2019/04/30

Reference Information

CVE: CVE-2018-13405