Vulnerability identifier: #VU610

Vulnerability 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-2016-5275

CWE-ID: CWE-284

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Mozilla Firefox
Client/Desktop applications / Web browsers

Vendor: Mozilla

Description
The vulnerability may lead to arbitrary code execution on the target system.
The weakness exists due to working with empty filters during canvas rendering. A global-buffer-overflow in mozilla::gfx::FilterSupport::ComputeSourceNeededRegions allows attackers to execute arbitrary code.
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

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External links
http://www.mozilla.org/en-US/security/advisories/mfsa2016-85/

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Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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