PulseLinuxLINUX UPDATE INTELLIGENCE
CVE Database›CVE-2017-7784

CVE-2017-7784

Mozilla: Use-after-free with image observers (MFSA 2017-19)

Loading…

Severity

Important

Red Hat Product Security

9.8

CVSS 3.0

Review impact separately from score.

Published · August 8, 2017

Updated · November 22, 2025

Description

A use-after-free vulnerability can occur when reading an image observer during frame reconstruction after the observer has been freed. This results in a potentially exploitable crash. This vulnerability affects Thunderbird < 52.3, Firefox ESR < 52.3, and Firefox < 55.

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 · 9.8
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CWE-416 · Use After Free