Ubuntu 14.04 LTS / 16.04 LTS : libevent vulnerabilities (USN-3228-1)

critical Nessus Plugin ID 97721


The remote Ubuntu host is missing one or more security updates.


Guido Vranken discovered that libevent incorrectly handled memory when processing certain data. A remote attacker could possibly use this issue with an application that uses libevent to cause a denial of service, or possibly execute arbitrary code.

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.

See Also


Plugin Details

Severity: Critical

ID: 97721

File Name: ubuntu_USN-3228-1.nasl

Version: 3.12

Type: local

Agent: unix

Published: 3/14/2017

Updated: 10/20/2023

Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information


Risk Factor: Medium

Score: 6.7


Risk Factor: High

Base Score: 7.5

Temporal Score: 5.9

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

CVSS Score Source: CVE-2016-10195


Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

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

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:libevent-2.0-5, p-cpe:/a:canonical:ubuntu_linux:libevent-core-2.0-5, p-cpe:/a:canonical:ubuntu_linux:libevent-dev, p-cpe:/a:canonical:ubuntu_linux:libevent-extra-2.0-5, p-cpe:/a:canonical:ubuntu_linux:libevent-openssl-2.0-5, p-cpe:/a:canonical:ubuntu_linux:libevent-pthreads-2.0-5, cpe:/o:canonical:ubuntu_linux:14.04:-:lts, cpe:/o:canonical:ubuntu_linux:16.04:-:lts

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: 3/13/2017

Vulnerability Publication Date: 3/15/2017

Reference Information

CVE: CVE-2016-10195, CVE-2016-10196, CVE-2016-10197

USN: 3228-1