Use-after-free in Mozilla Firefox - CVE-2019-11752
Published: September 3, 2019
Vulnerability identifier: #VU20823
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2019-11752
CWE-ID: CWE-416
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Mozilla
Affected software:
Mozilla Firefox
Mozilla Firefox
Detailed vulnerability description
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error when extracting a key value in IndexedDB. A remote attacker can create specially crafted webpage, trick the victim into visiting it, trigger a user-after-free error by deleting the IndexedDB key value and subsequently make the application try to extract it during conversion.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
How to mitigate CVE-2019-11752
Install updates from vendor's website.