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

High Nessus Plugin ID 96442


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


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.


Update the affected linux-image-4.4-snapdragon and / or linux-image-snapdragon packages.

Plugin Details

Severity: High

ID: 96442

File Name: ubuntu_USN-3169-4.nasl

Version: $Revision: 3.2 $

Type: local

Agent: unix

Published: 2017/01/12

Modified: 2017/06/22

Dependencies: 12634

Risk Information

Risk Factor: High


Base Score: 7.2

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C


Base Score: 7.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4-snapdragon, p-cpe:/a:canonical:ubuntu_linux:linux-image-snapdragon, cpe:/o:canonical:ubuntu_linux:16.04

Required KB Items: Host/cpu, Host/Ubuntu, Host/Ubuntu/release, Host/Debian/dpkg-l

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2017/01/11

Exploitable With

Core Impact

Reference Information

CVE: CVE-2016-9793, CVE-2016-9794

USN: 3169-4