CVE-2018-12359
High
Description
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. This vulnerability affects Thunderbird < 60, Thunderbird < 52.9, Firefox ESR < 60.1, Firefox ESR < 52.9, and Firefox < 61.
SeverityHigh
CVSS8.8
Exploit probability—
Product
Mozilla Firefox
PublishedOct 18, 2018
First seenOct 18, 2018
How to fix
Update
- mozilla firefox61.0 or later
- mozilla firefox_esr52.9, 60.1 or later
- mozilla thunderbird52.9 or later
Vendor advisories
- security.gentoo.org/glsa/201810-01
- access.redhat.com/errata/RHSA-2018:2112
- security.gentoo.org/glsa/201811-13
- debian.org/security/2018/dsa-4235
- access.redhat.com/errata/RHSA-2018:2113
- debian.org/security/2018/dsa-4244
- access.redhat.com/errata/RHSA-2018:2252
- access.redhat.com/errata/RHSA-2018:2251
- usn.ubuntu.com/3705-1/
- usn.ubuntu.com/3714-1/
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| mozilla firefox | v < 61.0 | 61.0 |
| redhat enterprise_linux_desktop | 6.0, 7.0 | — |
| redhat enterprise_linux_server | 6.0, 7.0 | — |
| redhat enterprise_linux_server_aus | 7.6 | — |
| redhat enterprise_linux_server_eus | 7.5, 7.6 | — |
| redhat enterprise_linux_server_tus | 7.6 | — |
| redhat enterprise_linux_workstation | 6.0, 7.0 | — |
| debian debian_linux | 8.0, 9.0 | — |
| canonical ubuntu_linux | 14.04, 16.04, 17.10, 18.04 | — |
| mozilla firefox_esr | v < 52.9, 53.0 ≤ v < 60.1 | 52.9, 60.1 |
| mozilla thunderbird | v < 52.9, 52.9.1 | 52.9 |
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