CVE-2021-29980

Uninitialized memory in a canvas object could have caused an incorrect free() leading to memory corruption and a potentially exploitable crash

published August 17, 2021

CVSS
—
EPSS
1%
Percentile
72.3
In the wild
Unconfirmed
What it is

Uninitialized memory in a canvas object could have caused an incorrect free() leading to memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 78.13, Thunderbird < 91, Firefox ESR < 78.13, and Firefox < 91.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.01399 · 72.3th percentile
Published
2021-08-17T19:12Z
EPSS history
Timeline
  • 17 AUG 19:12Z
    Uninitialized memory in a canvas object could have caused an incorrect free() leading to memory corruption and a potentially exploitable crash
    cvelistv5