CVE-2020-12419 — Use After Free in Mozilla Firefox
Severity
8.8HIGHNVD
OSV7.5OSV6.5
EPSS
0.5%
top 35.66%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedJul 9
Latest updateMay 24
Description
When processing callbacks that occurred during window flushing in the parent process, the associated window may die; causing a use-after-free condition. This could have led to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox ESR < 68.10, Firefox < 78, and Thunderbird < 68.10.0.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HExploitability: 2.8 | Impact: 5.9
Affected Packages10 packages
Also affects: Ubuntu Linux 16.04, 18.04, 19.10, 20.04
🔴Vulnerability Details
5GHSA▶
GHSA-qfjv-j5f5-wv79: When processing callbacks that occurred during window flushing in the parent process, the associated window may die; causing a use-after-free conditio↗2022-05-24
CVEList▶
CVE-2020-12419: When processing callbacks that occurred during window flushing in the parent process, the associated window may die; causing a use-after-free conditio↗2020-07-09
OSV▶
CVE-2020-12419: When processing callbacks that occurred during window flushing in the parent process, the associated window may die; causing a use-after-free conditio↗2020-07-09