CVE-2023-29532
Medium
Description
A local attacker can trick the Mozilla Maintenance Service into applying an unsigned update file by pointing the service at an update file on a malicious SMB server. The update file can be replaced after the signature check, before the use, because the write-lock requested by the service does not work on a SMB server. *Note: This attack requires local system access and only affects Windows. Other operating systems are not affected.* This vulnerability affects Firefox < 112, Firefox ESR < 102.10, and Thunderbird < 102.10.
SeverityMedium
CVSS5.5
Exploit probability—
Product
Mozilla Firefox
PublishedJun 19, 2023
First seenJun 19, 2023
How to fix
Update
- mozilla firefox112.0 or later
- mozilla firefox_esr102.10 or later
- mozilla thunderbird102.10 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| mozilla firefox | v < 112.0 | 112.0 |
| mozilla firefox_esr | v < 102.10 | 102.10 |
| mozilla thunderbird | v < 102.10 | 102.10 |
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