CVE-2017-5447
Critical
Description
An out-of-bounds read during the processing of glyph widths during text layout. This results in a potentially exploitable crash and could allow an attacker to read otherwise inaccessible memory. This vulnerability affects Thunderbird < 52.1, Firefox ESR < 45.9, Firefox ESR < 52.1, and Firefox < 53.
SeverityCritical
CVSS9.1
Exploit probability—
Product
Mozilla Firefox
PublishedJun 11, 2018
First seenJun 11, 2018
How to fix
Update
- mozilla firefox45.9.0, 53.0 or later
- mozilla thunderbird52.1.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| mozilla firefox | v < 45.9.0, v < 53.0, 52.0 | 45.9.0, 53.0 |
| debian debian_linux | 9.0 | — |
| redhat enterprise_linux | 6.0, 7.0 | — |
| redhat enterprise_linux_desktop | 6.0, 7.0 | — |
| redhat enterprise_linux_server | 6.0, 7.0 | — |
| redhat enterprise_linux_server_aus | 7.3, 7.4 | — |
| redhat enterprise_linux_server_eus | 7.3, 7.4, 7.5 | — |
| redhat enterprise_linux_workstation | 6.0, 7.0 | — |
| mozilla thunderbird | v < 52.1.0 | 52.1.0 |
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