The TtfUtil:LocaLookup function in TtfUtil.cpp in Libgraphite in Graphite 2 1.2.4, as used in Mozilla Firefox before 43.0 and Firefox ESR 38.x before 38.6.1, incorrectly validates a size value, which allows remote attackers to obtain sensitive information or cause a denial of service (out-of-bounds read and application crash) via a crafted Graphite smart font.
| Date Added | Due Date | Vulnerability Name | Required Action |
|---|---|---|---|
| N/A |
| Type | Version | Base score | Base severity | Vector |
|---|---|---|---|---|
| Primary | 3.0 | 8.1 | HIGH | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H |
| Primary | 2.0 | 5.8 | MEDIUM | AV:N/AC:M/Au:N/C:P/I:N/A:P |