CVE-2020-15667
High
Description
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.
SeverityHigh
CVSS8.8
Exploit probability—
Product
Mozilla Firefox
PublishedOct 1, 2020
First seenOct 1, 2020
How to fix
Update
- mozilla firefox80.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| mozilla firefox | v < 80.0 | 80.0 |
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