Ubuntu 12.04 LTS / 14.04 LTS / 15.04 : firefox vulnerability (USN-2768-1)

Medium Nessus Plugin ID 86443


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


Abdulrahman Alqabandi and Ben Kelly discovered that the fetch() API did not correctly implement the Cross Origin Resource Sharing (CORS) specification. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to obtain sensitive information from other origins. (CVE-2015-7184).

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 firefox package.

Plugin Details

Severity: Medium

ID: 86443

File Name: ubuntu_USN-2768-1.nasl

Version: $Revision: 2.7 $

Type: local

Agent: unix

Published: 2015/10/19

Modified: 2016/05/24

Dependencies: 12634

Risk Information

Risk Factor: Medium


Base Score: 6.8

Temporal Score: 5

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

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

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:firefox, cpe:/o:canonical:ubuntu_linux:12.04:-:lts, cpe:/o:canonical:ubuntu_linux:14.04, cpe:/o:canonical:ubuntu_linux:15.04

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: 2015/10/16

Reference Information

CVE: CVE-2015-7184

OSVDB: 128954

USN: 2768-1