Vulnerability identifier: #VU18559
Vulnerability risk: Low
CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-401
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 perform DoS attack on the target system.
The vulnerability exists due memory leak in Windows sandbox where an uninitialized value in memory can be leaked to a renderer from a broker when making a call to access an otherwise unavailable file.. A remote attacker can create a specially crafted web page and gain access to sensitive information stored in memory on the system.
Note: the vulnerability affects Windows versions of Firefox.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
Mozilla Firefox: 60.0 - 66.0.5
External links
http://www.mozilla.org/en-US/security/advisories/mfsa2019-13/
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.