#VU9528 Information disclosure in Mozilla Firefox - CVE-2017-7844

Vulnerability identifier: #VU9528

Vulnerability risk: Low

CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-7844

CWE-ID: CWE-200

Exploitation vector: Network

Exploit availability: No

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

Vendor: Mozilla

Description
The vulnerability allows a remote attacker to obtain potentially sensitive information on the target system.

The weakness exists due to an error when handling external SVG images from malicious websites. A remote attacker can trick the victim into visiting a specially crafted website, use a combination of an external SVG image referenced on a page and the coloring of anchor links stored within this image and access sensitive information such as stored data and user history.

Mitigation
Update to version 57.0.1.

Vulnerable software versions

Mozilla Firefox: 57.0

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External links
https://www.mozilla.org/en-US/security/advisories/mfsa2017-27/

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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.