Summary
It was discovered that Sodium incorrectly handled the elliptic curve point
validity check in certain atypical use cases. This could result in invalid
points being used, contrary to expectations.
Fixed packages 3
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu · 22.04 LTS 22.04:LTS | libsodium | 1.0.18-1ubuntu0.22.04.1 |
| Ubuntu · 24.04 LTS 24.04:LTS | libsodium | 1.0.18-1ubuntu0.24.04.1 |
| Ubuntu · 25.10 | libsodium | 1.0.18-1ubuntu0.25.10.1 |
Vulnerabilities 1
-
Medium 4.5
libsodium has Incomplete List of Disallowed Inputs
libsodium before ad3004e, in atypical use cases involving certain custom cryptography or untrusted data to crypto_core_ed25519_is_valid_point, mishandles checks for whether an elliptic curve point is valid because it sometimes allows points that aren't in the…
References
-
report
https://ubuntu.com/security/CVE-2025-69277