CVE-2017-7801 — Use After Free in Mozilla Firefox
Severity
9.8CRITICALNVD
EPSS
2.3%
top 15.19%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedJun 11
Latest updateMay 14
Description
A use-after-free vulnerability can occur while re-computing layout for a "marquee" element during window resizing where the updated style object is freed while still in use. This results in a potentially exploitable crash. This vulnerability affects Thunderbird < 52.3, Firefox ESR < 52.3, and Firefox < 55.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitability: 3.9 | Impact: 5.9
Affected Packages8 packages
Also affects: Debian Linux 8.0, 9.0, Enterprise Linux 6.0, 7.0, 7.3, 7.4, 7.5
Patches
🔴Vulnerability Details
5GHSA▶
GHSA-7fcq-7gf3-867c: A use-after-free vulnerability can occur while re-computing layout for a "marquee" element during window resizing where the updated style object is fr↗2022-05-14
OSV▶
CVE-2017-7801: A use-after-free vulnerability can occur while re-computing layout for a "marquee" element during window resizing where the updated style object is fr↗2018-06-11
CVEList▶
CVE-2017-7801: A use-after-free vulnerability can occur while re-computing layout for a "marquee" element during window resizing where the updated style object is fr↗2018-06-11