Virtuozzo 7 : readykernel-patch (VZA-2017-070)

Medium Nessus Plugin ID 102436

Synopsis

The remote Virtuozzo host is missing a security update.

Description

According to the version of the vzkernel package and the readykernel-patch installed, the Virtuozzo installation on the remote host is affected by the following vulnerability :

- A race condition was found in the Linux kernel, present since v3.14-rc1 through v4.12. The race happens between threads of inotify_handle_event() and vfs_rename() while running the rename operation against the same file. As a result of the race the next slab data or the slab's free list pointer can be corrupted with attacker-controlled data.

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 readykernel patch.

See Also

https://help.virtuozzo.com/customer/portal/articles/2857146

http://www.nessus.org/u?4e22e798

http://www.nessus.org/u?90084127

http://www.nessus.org/u?e8143d61

http://www.nessus.org/u?e5202efa

http://www.nessus.org/u?fea3e5ea

http://www.nessus.org/u?8b4d6f24

Plugin Details

Severity: Medium

ID: 102436

File Name: Virtuozzo_VZA-2017-070.nasl

Version: 3.4

Type: local

Published: 2017/08/14

Modified: 2018/06/13

Dependencies: 12634

Risk Information

Risk Factor: Medium

CVSSv2

Base Score: 6.9

Temporal Score: 5.7

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

Temporal Vector: CVSS2#E:F/RL:OF/RC:ND

CVSSv3

Base Score: 7

Temporal Score: 6.4

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

Temporal Vector: CVSS:3.0/E:F/RL:O/RC:X

Vulnerability Information

CPE: p-cpe:/a:virtuozzo:virtuozzo:readykernel, cpe:/o:virtuozzo:virtuozzo:7

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

Patch Publication Date: 2017/08/10

Reference Information

CVE: CVE-2017-7533