Mozilla Thunderbird and 1 other: The ElGamal implementation in Botan through 2.18.1, as used in Thunderbird and other products, allows…
CVE-2021-40529 is fixed in Mozilla Thunderbird (en-US) on 1 platform by Mozilla Thunderbird (en-US) 102.0 (version 102.0), released June 29, 2022. It is not reported as exploited. Patch Radar priority: Routine.
The ElGamal implementation in Botan through 2.18.1, as used in Thunderbird and other products, allows plaintext recovery because, during interaction between two cryptographic libraries, a certain dangerous combination of the prime defined by the receiver's public key, the generator defined by the receiver's public key, and the sender's ephemeral exponents can lead to a cross-configuration attack against OpenPGP.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Windows apps | |||
| Mozilla Thunderbird (en-US) | 102.0 | Mozilla Thunderbird (en-US) 102.0 | Jun 29, 2022 |
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