Description
A use-after-free can occur when events are fired for a "FontFace" object after the object has been already been destroyed while working with fonts. This results in a potentially exploitable crash. This vulnerability affects Firefox < 52, Firefox ESR < 45.8, Thunderbird < 52, and Thunderbird < 45.8.
References (14)
Core 14
Core References
Issue Tracking, Patch, Vendor Advisory x_refsource_confirm
https://bugzilla.mozilla.org/show_bug.cgi?id=1334876
Third Party Advisory vendor-advisory
x_refsource_redhat
http://rhn.redhat.com/errata/RHSA-2017-0459.html
Vendor Advisory x_refsource_confirm
https://www.mozilla.org/security/advisories/mfsa2017-09/
Third Party Advisory vendor-advisory
x_refsource_debian
https://www.debian.org/security/2017/dsa-3832
Vendor Advisory x_refsource_confirm
https://www.mozilla.org/security/advisories/mfsa2017-07/
Vendor Advisory x_refsource_confirm
https://www.mozilla.org/security/advisories/mfsa2017-05/
Third Party Advisory, VDB Entry vdb-entry
x_refsource_sectrack
http://www.securitytracker.com/id/1037966
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/96664
Third Party Advisory vendor-advisory
x_refsource_gentoo
https://security.gentoo.org/glsa/201705-06
Third Party Advisory vendor-advisory
x_refsource_redhat
http://rhn.redhat.com/errata/RHSA-2017-0461.html
Third Party Advisory vendor-advisory
x_refsource_debian
https://www.debian.org/security/2017/dsa-3805
Vendor Advisory x_refsource_confirm
https://www.mozilla.org/security/advisories/mfsa2017-06/
Third Party Advisory vendor-advisory
x_refsource_redhat
http://rhn.redhat.com/errata/RHSA-2017-0498.html
Third Party Advisory vendor-advisory
x_refsource_gentoo
https://security.gentoo.org/glsa/201705-07
Scores
CVSS v3
9.8
EPSS
0.0256
EPSS Percentile
85.7%
Attack Vector
NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-416
Status
published
Products (20)
debian/debian_linux
9.0
mozilla/firefox
< 52.0
mozilla/thunderbird
< 45.8.0
redhat/enterprise_linux
5.0
redhat/enterprise_linux
6.0
redhat/enterprise_linux
7.0
redhat/enterprise_linux_desktop
5.0
redhat/enterprise_linux_desktop
6.0
redhat/enterprise_linux_desktop
7.0
redhat/enterprise_linux_server
5.0
... and 10 more
Published
Jun 11, 2018
Tracked Since
Feb 18, 2026