Segmentation fault in Mozilla Firefox



Published: 2017-03-07
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2017-5406
CWE-ID CWE-665
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) Segmentation fault

EUVDB-ID: #VU5926

Risk: Low

CVSSv3.1: 5 [CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-5406

CWE-ID: CWE-665 - Improper Initialization

Exploit availability: No

Description

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

The vulnerability exists due in the Skia graphics library during some canvas operations due to issues with mask/clip intersection and empty masks. A remote attacker can create a specially crafted web page, trick the victim into visiting it, trigger segmentation fault 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/#CVE-2017-5400


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user 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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