Ubuntu 12.04 LTS : linux regression (USN-3338-2) (Stack Clash)

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


Synopsis :

The remote Ubuntu host is missing one or more security-related
patches.

Description :

USN-3338-1 fixed vulnerabilities in the Linux kernel. However, the fix
for CVE-2017-1000364 introduced regressions for some Java
applications. This update addresses the issue. We apologize for the
inconvenience.

It was discovered that the stack guard page for processes in the Linux
kernel was not sufficiently large enough to prevent overlapping with
the heap. An attacker could leverage this with another vulnerability
to execute arbitrary code and gain administrative privileges
(CVE-2017-1000364)

Jesse Hertz and Tim Newsham discovered that the Linux
netfilter implementation did not correctly perform
validation when handling 32 bit compatibility
IPT_SO_SET_REPLACE events on 64 bit platforms. A local
unprivileged attacker could use this to cause a denial of
service (system crash) or execute arbitrary code with
administrative privileges. (CVE-2016-4997).

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

Solution :

Update the affected packages. Note that the updated packages may not
be immediately available from the package repository or its mirrors.

Risk factor :

Critical / CVSS Base Score : 10.0
(CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C)
CVSS Temporal Score : 8.3
(CVSS2#E:F/RL:OF/RC:ND)
Public Exploit Available : true

Family: Ubuntu Local Security Checks

Nessus Plugin ID: 101149 ()

Bugtraq ID:

CVE ID: CVE-2016-4997
CVE-2017-1000364

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