#VU7071 Use-after-free error in Firefox ESR - CVE-2017-7757
Published: June 14, 2017 / Updated: May 26, 2020
Vulnerability identifier: #VU7071
Vulnerability risk: High
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2017-7757
CWE-ID: CWE-416
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Firefox ESR
Firefox ESR
Software vendor:
Mozilla
Mozilla
Description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The weakness exists due to use-after-free error in IndexedDB when one of its objects is destroyed in memory while a method on it is still being executed. A remote attacker can trigger memory corruption and execute arbitrary code with privileges of the current user.
Successful exploitation of the vulnerability may result in system compromise.
The weakness exists due to use-after-free error in IndexedDB when one of its objects is destroyed in memory while a method on it is still being executed. A remote attacker can trigger memory corruption and execute arbitrary code with privileges of the current user.
Successful exploitation of the vulnerability may result in system compromise.
Remediation
Update to version 52.2.