CVE-2017-7819
Mozilla: Use-after-free while resizing images in design mode (MFSA 2017-22)
Severity
ImportantRed Hat Product Security
CVSS 3.0
Review impact separately from score.
Published · September 28, 2017
Updated · November 26, 2025
Description
A use-after-free vulnerability can occur in design mode when image objects are resized if objects referenced during the resizing have been freed from memory. This results in a potentially exploitable crash. This vulnerability affects Firefox < 56, Firefox ESR < 52.4, and Thunderbird < 52.4.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.0 · 9.8CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE-416 · Use After Free