Arbitrary code execution in Mozilla Firefox

1) Arbitrary code execution

EUVDB-ID: #VU614

Risk: High

CVSSv3.1: 8.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2016-5272

CWE-ID: CWE-284 - Improper Access Control

Exploit availability: No

Description

The vulnerability may lead to arbitrary code execution on the target system.
The weakness exists during processing layout with input element. invalid cast in nsImageGeometryMixin(). An invalid cast in nsImageGeometryMixin() can cause a potentially exploitable crash.
Successful exploitation of the vulnerability results in arbitrary code execution on the vulnerable system.

Mitigation

Update to 49.0.

Vulnerable software versions

Mozilla Firefox: 3.5 - 48.0.2

Oracle Linux: 10 - 11.3

Oracle Linux: 5 - 7

External links

http://www.mozilla.org/en-US/security/advisories/mfsa2016-85/
http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html
http://www.oracle.com/technetwork/topics/security/bulletinoct2016-3090566.html

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.