Virtuozzo 7 : crit / criu / criu-devel / python-criu / vzkernel / etc (VZA-2017-056)

This script is Copyright (C) 2017 Tenable Network Security, Inc.


Synopsis :

The remote Virtuozzo host is missing a security update.

Description :

According to the version of the crit / criu / criu-devel /
python-criu / vzkernel / etc packages installed, the Virtuozzo
installation on the remote host is affected by the following
vulnerability :

- A flaw was found in the way memory was being allocated
on the stack for user space binaries. If heap (or
different memory region) and stack memory regions were
adjacent to each other, an attacker could use this flaw
to jump over the stack guard gap, cause controlled
memory corruption on process stack or the adjacent
memory region, and thus increase their privileges on
the system. This is a kernel-side mitigation which
increases the stack guard gap size from one page to 1
MiB to make successful exploitation of this issue more
difficult.

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.

See also :

https://help.virtuozzo.com/customer/portal/articles/2830148

Solution :

Update the affected crit / criu / criu-devel / python-criu / vzkernel / etc package.

Risk factor :

Medium / CVSS Base Score : 6.2
(CVSS2#AV:L/AC:H/Au:N/C:C/I:C/A:C)
CVSS Temporal Score : 5.1
(CVSS2#E:F/RL:OF/RC:ND)
Public Exploit Available : true

Family: Virtuozzo Local Security Checks

Nessus Plugin ID: 101053 ()

Bugtraq ID:

CVE ID: CVE-2017-1000364

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