| Package | Affected versions | Patched versions |
|---|---|---|
| thunderbird | < 128.11.0< 139.0 | 128.11.0139.0 |
A double-free could have occurred in `vpx_codec_enc_init_multi` after a failed allocation when initializing the encoder for WebRTC. This could have caused memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 139 and Thunderbird < 128.11.
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