CVE-2017-5402 — Use After Free in Mozilla Firefox
Severity
9.8CRITICALNVD
EPSS
2.5%
top 14.65%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedJun 11
Latest updateMay 14
Description
A use-after-free can occur when events are fired for a "FontFace" object after the object has been already been destroyed while working with fonts. This results in a potentially exploitable crash. This vulnerability affects Firefox < 52, Firefox ESR < 45.8, Thunderbird < 52, and Thunderbird < 45.8.
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 Packages10 packages
Also affects: Debian Linux 9.0, Enterprise Linux 5.0, 6.0, 7.0, 7.3, 7.4, 7.5
Patches
🔴Vulnerability Details
6GHSA▶
GHSA-9m53-4c27-h8f5: A use-after-free can occur when events are fired for a "FontFace" object after the object has been already been destroyed while working with fonts↗2022-05-14
CVEList▶
CVE-2017-5402: A use-after-free can occur when events are fired for a "FontFace" object after the object has been already been destroyed while working with fonts↗2018-06-11
OSV▶
CVE-2017-5402: A use-after-free can occur when events are fired for a "FontFace" object after the object has been already been destroyed while working with fonts↗2018-06-11
📋Vendor Advisories
4Debian▶
CVE-2017-5402: firefox - A use-after-free can occur when events are fired for a "FontFace" object after t...↗2017
💬Community
1Bugzilla▶
CVE-2017-5402 Mozilla: Use-after-free working with events in FontFace objects (MFSA 2017-06)↗2017-03-07