Ubuntu 14.04 LTS / 16.04 LTS / 17.04 : nss vulnerability (USN-3431-1)

High Nessus Plugin ID 103642


The remote Ubuntu host is missing a security-related patch.


Martin Thomson discovered that NSS incorrectly generated handshake hashes. A remote attacker could use this issue to cause NSS to crash, resulting in 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 libnss3 package.

Plugin Details

Severity: High

ID: 103642

File Name: ubuntu_USN-3431-1.nasl

Version: $Revision: 3.4 $

Type: local

Agent: unix

Published: 2017/10/03

Modified: 2017/11/16

Dependencies: 12634

Risk Information

Risk Factor: High


Base Score: 9.3

Temporal Score: 6.9

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

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:libnss3, cpe:/o:canonical:ubuntu_linux:14.04, cpe:/o:canonical:ubuntu_linux:16.04, cpe:/o:canonical:ubuntu_linux:17.04

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

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2017/10/02

Reference Information

CVE: CVE-2017-7805

OSVDB: 166332

USN: 3431-1