Ubuntu 16.04 LTS : linux, linux-aws, linux-gke, linux-raspi2, linux-snapdragon regression (USN-3392-1) (Stack Clash)

Ubuntu Security Notice (C) 2017 Canonical, Inc. / NASL script (C) 2017 Tenable Network Security, Inc.


Synopsis :

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

Description :

USN-3378-1 fixed vulnerabilities in the Linux kernel. Unfortunately, a
regression was introduced that prevented conntrack from working
correctly in some situations. This update fixes the problem.

We apologize for the inconvenience.

Fan Wu and Shixiong Zhao discovered a race condition between inotify
events and vfs rename operations in the Linux kernel. An unprivileged
local attacker could use this to cause a denial of service (system
crash) or execute arbitrary code. (CVE-2017-7533)

It was discovered that the Linux kernel did not properly
restrict RLIMIT_STACK size. A local attacker could use this
in conjunction with another vulnerability to possibly
execute arbitrary code. (CVE-2017-1000365)

Li Qiang discovered that the Virtio GPU driver in the Linux
kernel did not properly free memory in some situations. A
local attacker could use this to cause a denial of service
(memory consumption). (CVE-2017-10810)

Shi Lei discovered that the RxRPC Kerberos 5 ticket handling
code in the Linux kernel did not properly verify metadata. A
remote attacker could use this to cause a denial of service
(system crash) or possibly execute arbitrary code.
(CVE-2017-7482).

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.

Risk factor :

High / CVSS Base Score : 7.8
(CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C)
CVSS Temporal Score : 5.8
(CVSS2#E:U/RL:OF/RC:C)
Public Exploit Available : false

Family: Ubuntu Local Security Checks

Nessus Plugin ID: 102524 ()

Bugtraq ID:

CVE ID: CVE-2017-1000365
CVE-2017-10810
CVE-2017-7482
CVE-2017-7533

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