A buffer overflow can occur when rendering canvas content while adjusting the height and width of the `<canvas>` element dynamically, causing data to be written outside of the currently computed boundaries. This results in a potentially exploitable crash. External Reference: https://www.mozilla.org/en-US/security/advisories/mfsa2018-16/#CVE-2018-12359
Acknowledgments: Name: the Mozilla project Upstream: Nils
This issue has been addressed in the following products: Red Hat Enterprise Linux 6 Via RHSA-2018:2112 https://access.redhat.com/errata/RHSA-2018:2112
This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Via RHSA-2018:2113 https://access.redhat.com/errata/RHSA-2018:2113
This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Via RHSA-2018:2252 https://access.redhat.com/errata/RHSA-2018:2252
This issue has been addressed in the following products: Red Hat Enterprise Linux 6 Via RHSA-2018:2251 https://access.redhat.com/errata/RHSA-2018:2251