Use-after-free in Mozilla Firefox



Published: 2017-03-07
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2017-5411
CWE-ID CWE-416
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe 		Mozilla Firefox
Client/Desktop applications / Web browsers

Vendor Mozilla

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Use-after-free

EUVDB-ID: #VU5929

Risk: Low

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-5411

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a remote attacker to cause denial of service attack.

The vulnerability exists due to use-after-free error during buffer storage operations within the ANGLE graphics library, used for WebGL content. A remote attacker can create a specially crafted web page, trick the victim into visiting it, trigger use-after-free error and cause denial of service attack.

Successful exploitation of the vulnerability may allow an attacker to crash the victim’s browser.

Mitigation

Update to Firefox 52.

Vulnerable software versions

Mozilla Firefox: 50.0 - 51.0.3

CPE2.3 External links

http://www.mozilla.org/en-US/security/advisories/mfsa2017-05/


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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