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 to read otherwise inaccessible memory. This vulnerability affects Thunderbird < 52.1, Firefox ESR < 45.9, Firefox ESR < 52.1, and Firefox < 53.

CVSS v3.0

9.1 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

CVSS v2.0

6.4 MEDIUMAV:N/AC:L/Au:N/C:P/I:N/A:P

EPSS

17.31% chance of exploitation in the next 30 days, 97th percentile

Published

2018-06-11

Updated

2024-08-05

Proof-of-concept exploits (1)

• https://bugzilla.mozilla.org/show_bug.cgi?id=1343552

ExploitDB entries (1)

• https://www.exploit-db.com/exploits/42071

References

• CVE Record
• NVD entry

Related

• CVE-2017-5440
• CVE-2017-5450
• CVE-2017-5439
• CVE-2017-5451
• CVE-2017-5438
• CVE-2017-5455