Ubuntu 16.04 LTS : linux-snapdragon vulnerabilities (USN-3169-4)

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 :

Baozeng Ding discovered a race condition that could lead to a
use-after- free in the Advanced Linux Sound Architecture (ALSA)
subsystem of the Linux kernel. A local attacker could use this to
cause a denial of service (system crash). (CVE-2016-9794)

Andrey Konovalov discovered that signed integer overflows existed in
the setsockopt() system call when handling the SO_SNDBUFFORCE and
SO_RCVBUFFORCE options. A local attacker with the CAP_NET_ADMIN
capability could use this to cause a denial of service (system crash
or memory corruption). (CVE-2016-9793).

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 linux-image-4.4-snapdragon and / or
linux-image-snapdragon packages.

Risk factor :

High / CVSS Base Score : 7.2
(CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C)
Public Exploit Available : true

Family: Ubuntu Local Security Checks

Nessus Plugin ID: 96442 ()

Bugtraq ID:

CVE ID: CVE-2016-9793
CVE-2016-9794

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