Denial of service in Mozilla Firefox

1) Denial of service

EUVDB-ID: #VU8110

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: N/A

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to cause DoS condition on the target system.

The weakness exists due to and error insufficient validation of user-supplied input. A remote attacker can trick the victim into opening a specially crafted .pdf file, cause the PDF viewer component to hang and Firefox to use a lot of CPU power.

Successful exploitation of the vulnerability results in denial of service.

Mitigation

Update to version 57.

Vulnerable software versions

Mozilla Firefox: 45.0 - 55.0

CPE2.3

• cpe:2.3:a:mozilla:mozilla_firefox:55.0:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:mozilla_firefox:53.0.3:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:mozilla_firefox:54.0:*:*:*:*:*:*:*

External links

http://bugzilla.mozilla.org/show_bug.cgi?id=1393476

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.