CVE-2021-29949
High
Description
When loading the shared library that provides the OTR protocol implementation, Thunderbird will initially attempt to open it using a filename that isn't distributed by Thunderbird. If a computer has already been infected with a malicious library of the alternative filename, and the malicious library has been copied to a directory that is contained in the search path for executable libraries, then Thunderbird will load the incorrect library. This vulnerability affects Thunderbird < 78.9.1.
SeverityHigh
CVSS7.8
Exploit probability—
Product
Mozilla Thunderbird
PublishedJun 24, 2021
First seenJun 24, 2021
How to fix
Update
- mozilla thunderbird78.9.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| mozilla thunderbird | v < 78.9.1 | 78.9.1 |
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