An integer overflow can occur in the Skia library due to 32-bit integer use in an array without integer overflow checks, resulting in possible out-of-bounds writes. This could lead to a potentially exploitable crash triggerable by web content. This vulnerability affects Thunderbird < 52.8, Thunderbird ESR < 52.8, Firefox < 60, and Firefox ESR < 52.8.
http://www.securityfocus.com/bid/104136
http://www.securitytracker.com/id/1040896
https://access.redhat.com/errata/RHSA-2018:1414
https://access.redhat.com/errata/RHSA-2018:1415
https://access.redhat.com/errata/RHSA-2018:1725
https://access.redhat.com/errata/RHSA-2018:1726
https://bugzilla.mozilla.org/show_bug.cgi?id=1441941
https://lists.debian.org/debian-lts-announce/2018/05/msg00007.html
https://lists.debian.org/debian-lts-announce/2018/05/msg00013.html
https://security.gentoo.org/glsa/201810-01
https://security.gentoo.org/glsa/201811-13
https://usn.ubuntu.com/3645-1/
https://usn.ubuntu.com/3660-1/
https://www.debian.org/security/2018/dsa-4199
https://www.debian.org/security/2018/dsa-4209
https://www.exploit-db.com/exploits/44759/
https://www.mozilla.org/security/advisories/mfsa2018-11/
Source: MITRE
Published: 2018-06-11
Updated: 2019-03-11
Type: CWE-190
Base Score: 7.5
Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P
Impact Score: 6.4
Exploitability Score: 10
Severity: HIGH
Base Score: 9.8
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Impact Score: 5.9
Exploitability Score: 3.9
Severity: CRITICAL