CVE-2017-5447
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...
- Published
- Jun 11, 2018
- Updated
- Aug 5, 2024
- Assigning CNA
- mozilla
- Evidence observed
- May 25, 2017
Primary CVSS
nvd · CVSS 3.0
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:HModerate · next 30 days
- Percentile
- 96.1%
- Model date
- Sep 21, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
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.
Sources
1Google Security Research · multiple · May 25, 2017
Responsible use
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