CVE-2020-15667

When processing a MAR update file, after the signature has been validated, an invalid name length could result in a heap overflow, leading to memory corruption…

published October 1, 2020

CVSS
—
EPSS
2%
Percentile
76.3
In the wild
Unconfirmed
What it is

When processing a MAR update file, after the signature has been validated, an invalid name length could result in a heap overflow, leading to memory corruption and potentially arbitrary code execution. Within Firefox as released by Mozilla, this issue is only exploitable with the Mozilla-controlled signing key. This vulnerability affects Firefox < 80.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.01647 · 76.3th percentile
Published
2020-10-01T18:42Z
EPSS history
Timeline
  • 01 OCT 18:42Z
    When processing a MAR update file, after the signature has been validated, an invalid name length could result in a heap overflow, leading to memory corruption…
    cvelistv5