MEDIUM
Use-after-free vulnerability in the ServiceWorkerInfo class in the Service Worker subsystem in Mozilla Firefox before 46.0 allows remote attackers to execute arbitrary code via vectors related to the BeginReading method.
http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00005.html
http://lists.opensuse.org/opensuse-updates/2016-05/msg00038.html
http://www.mozilla.org/security/announce/2016/mfsa2016-42.html
http://www.securitytracker.com/id/1035692
http://www.ubuntu.com/usn/USN-2936-1
http://www.ubuntu.com/usn/USN-2936-2
http://www.ubuntu.com/usn/USN-2936-3
Source: MITRE
Published: 2016-04-30
Updated: 2017-07-01
Type: NVD-CWE-Other
Base Score: 6.8
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P
Impact Score: 6.4
Exploitability Score: 8.6
Severity: MEDIUM
Base Score: 8.8
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Impact Score: 5.9
Exploitability Score: 2.8
Severity: HIGH