Virtuozzo 6 : kernel / kernel-abi-whitelists / kernel-debug / etc (VZLSA-2017-0293)

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


Synopsis :

The remote Virtuozzo host is missing a security update.

Description :

An update for kernel is now available for Red Hat Enterprise Linux 6.

Red Hat Product Security has rated this update as having a security
impact of Important. A Common Vulnerability Scoring System (CVSS) base
score, which gives a detailed severity rating, is available for each
vulnerability from the CVE link(s) in the References section.

The kernel packages contain the Linux kernel, the core of any Linux
operating system.

Security Fix(es) :

* A use-after-free flaw was found in the way the Linux kernel's
Datagram Congestion Control Protocol (DCCP) implementation freed SKB
(socket buffer) resources for a DCCP_PKT_REQUEST packet when the
IPV6_RECVPKTINFO option is set on the socket. A local, unprivileged
user could use this flaw to alter the kernel memory, allowing them to
escalate their privileges on the system. (CVE-2017-6074, Important)

Note that Tenable Network Security has attempted to extract the
preceding description block directly from the corresponding Red Hat
security advisory. Virtuozzo provides no description for VZLSA
advisories. Tenable has attempted to automatically clean and format
it as much as possible without introducing additional issues.

See also :

http://www.nessus.org/u?5433f03a
https://rhn.redhat.com/errata/RHSA-2017-0293.html

Solution :

Update the affected kernel / kernel-abi-whitelists / kernel-debug / etc package.

Risk factor :

High / CVSS Base Score : 7.2
(CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C)
CVSS Temporal Score : 6.0
(CVSS2#E:F/RL:OF/RC:ND)
Public Exploit Available : true

Family: Virtuozzo Local Security Checks

Nessus Plugin ID: 101425 ()

Bugtraq ID:

CVE ID: CVE-2017-6074

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