EulerOS 2.0 SP1 : kernel (EulerOS-SA-2016-1048)

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


Synopsis :

The remote EulerOS host is missing multiple security updates.

Description :

According to the versions of the kernel packages installed, the
EulerOS installation on the remote host is affected by the following
vulnerabilities :

- The netfilter subsystem in the Linux kernel through
4.5.2 does not validate certain offset fields, which
allows local users to gain privileges or cause a denial
of service (heap memory corruption) via an
IPT_SO_SET_REPLACE setsockopt call.(CVE-2016-3134)

- The compat IPT_SO_SET_REPLACE and IP6T_SO_SET_REPLACE
setsockopt implementations in the netfilter subsystem
in the Linux kernel before 4.6.3 allow local users to
gain privileges or cause a denial of service (memory
corruption) by leveraging in-container root access to
provide a crafted offset value that triggers an
unintended decrement.(CVE-2016-4997)

- The IPT_SO_SET_REPLACE setsockopt implementation in the
netfilter subsystem in the Linux kernel before 4.6
allows local users to cause a denial of service
(out-of-bounds read) or possibly obtain sensitive
information from kernel heap memory by leveraging
in-container root access to provide a crafted offset
value that leads to crossing a ruleset blob
boundary.(CVE-2016-4998)

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

See also :

http://www.nessus.org/u?cc648276

Solution :

Update the affected kernel packages.

Risk factor :

High / CVSS Base Score : 7.2
(CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C)
CVSS Temporal Score : 6.5
(CVSS2#E:POC/RL:U/RC:ND)
Public Exploit Available : true

Family: Huawei Local Security Checks

Nessus Plugin ID: 99811 ()

Bugtraq ID:

CVE ID: CVE-2016-3134
CVE-2016-4997
CVE-2016-4998

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