Remote code execution in Mozilla Firefox



Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2017-5031
CWE-ID CWE-416
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Mozilla Firefox
Client/Desktop applications / Web browsers

Firefox ESR
Client/Desktop applications / Web browsers

Vendor Mozilla

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Use-after-free

EUVDB-ID: #VU6433

Risk: High

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2017-5031

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to use-after-free error during Buffer11 API calls within the ANGLE graphics library when processing WebGL content. A remote attacker can create a specially crafted web page with malicious WebGL content, trick the victim into visiting it and execute arbitrary code on the target system.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.

The vulnerability resides within libGLES, which is only present on Windows systems. Other operating systems are not affected.

Mitigation

Update to version Firefox 53.0.2 or Firefox ESR 52.1.1.

Vulnerable software versions

Mozilla Firefox: 53.0 - 53.0.1

Firefox ESR: 52.0 - 52.1

CPE2.3 External links

https://www.mozilla.org/en-US/security/advisories/mfsa2017-14/


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.



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