Description
An out-of-bounds write in "ClearKeyDecryptor" while decrypting some Clearkey-encrypted media content. The "ClearKeyDecryptor" code runs within the Gecko Media Plugin (GMP) sandbox. If a second mechanism is found to escape the sandbox, this vulnerability allows for the writing of arbitrary data within memory, resulting in a potentially exploitable crash. This vulnerability affects Firefox ESR < 45.9, Firefox ESR < 52.1, and Firefox < 53.
References (9)
Core 9
Core References
Third Party Advisory vendor-advisory
x_refsource_redhat
https://access.redhat.com/errata/RHSA-2017:1106
Vendor Advisory x_refsource_confirm
https://www.mozilla.org/security/advisories/mfsa2017-12/
Vendor Advisory x_refsource_confirm
https://www.mozilla.org/security/advisories/mfsa2017-11/
Vendor Advisory x_refsource_confirm
https://www.mozilla.org/security/advisories/mfsa2017-10/
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/97940
Third Party Advisory vendor-advisory
x_refsource_debian
https://www.debian.org/security/2017/dsa-3831
Third Party Advisory, VDB Entry vdb-entry
x_refsource_sectrack
http://www.securitytracker.com/id/1038320
Third Party Advisory vendor-advisory
x_refsource_redhat
https://access.redhat.com/errata/RHSA-2017:1104
Issue Tracking, Vendor Advisory x_refsource_confirm
https://bugzilla.mozilla.org/show_bug.cgi?id=1346648
Scores
CVSS v3
8.6
EPSS
0.0138
EPSS Percentile
80.5%
Attack Vector
NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
Details
CWE
CWE-787
Status
published
Products (15)
debian/debian_linux
7.0
mozilla/firefox
< 45.9.0
redhat/enterprise_linux
6.0
redhat/enterprise_linux
7.0
redhat/enterprise_linux_desktop
6.0
redhat/enterprise_linux_desktop
7.0
redhat/enterprise_linux_server
6.0
redhat/enterprise_linux_server
7.0
redhat/enterprise_linux_server_aus
7.3
redhat/enterprise_linux_server_aus
7.4
... and 5 more
Published
Jun 11, 2018
Tracked Since
Feb 18, 2026