CVE-2018-12393

A potential vulnerability was found in 32-bit builds where an integer overflow during the conversion of scripts to an internal UTF-16 representation could…

published February 28, 2019

CVSS
—
EPSS
4%
Percentile
90.3
In the wild
Unconfirmed
What it is

A potential vulnerability was found in 32-bit builds where an integer overflow during the conversion of scripts to an internal UTF-16 representation could result in allocating a buffer too small for the conversion. This leads to a possible out-of-bounds write. *Note: 64-bit builds are not vulnerable to this issue.*. This vulnerability affects Firefox < 63, Firefox ESR < 60.3, and Thunderbird < 60.3.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.03924 · 90.3th percentile
Published
2019-02-28T18:00Z
EPSS history
Timeline
  • 28 FEB 18:00Z
    A potential vulnerability was found in 32-bit builds where an integer overflow during the conversion of scripts to an internal UTF-16 representation could…
    cvelistv5