Ubuntu 16.10 : linux, linux-raspi2 vulnerability (USN-3221-1)

High Nessus Plugin ID 97607


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


Alexander Popov discovered that the N_HDLC line discipline implementation in the Linux kernel contained a double-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly gain administrative privileges.

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 packages.

Plugin Details

Severity: High

ID: 97607

File Name: ubuntu_USN-3221-1.nasl

Version: $Revision: 3.4 $

Type: local

Agent: unix

Published: 2017/03/08

Modified: 2017/08/16

Dependencies: 12634

Risk Information

Risk Factor: High


Base Score: 7.2

Temporal Score: 6.8

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

Temporal Vector: CVSS2#E:F/RL:U/RC:ND


Base Score: 7.8

Temporal Score: 7.5

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

Temporal Vector: CVSS:3.0/E:F/RL:U/RC:X

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:linux-image-4.8-generic, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.8-generic-lpae, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.8-lowlatency, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.8-raspi2, p-cpe:/a:canonical:ubuntu_linux:linux-image-generic, p-cpe:/a:canonical:ubuntu_linux:linux-image-generic-lpae, p-cpe:/a:canonical:ubuntu_linux:linux-image-lowlatency, p-cpe:/a:canonical:ubuntu_linux:linux-image-raspi2, cpe:/o:canonical:ubuntu_linux:16.10

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: 2017/03/07

Reference Information

CVE: CVE-2017-2636

OSVDB: 153186

USN: 3221-1