CVE-2016-9121: Inadequate Encryption Strength

June 23, 2021 (updated February 16, 2023)

go-jose before 1.0.4 suffers from an invalid curve attack for the ECDH-ES algorithm. When deriving a shared key using ECDH-ES for an encrypted message, go-jose neglected to check that the received public key on a message is on the same curve as the static private key of the receiver, thus making it vulnerable to an invalid curve attack.

References

github.com/advisories/GHSA-86r9-39j9-99wp
github.com/square/go-jose/commit/c7581939a3656bb65e89d64da0a52364a33d2507
hackerone.com/reports/164590
nvd.nist.gov/vuln/detail/CVE-2016-9121
pkg.go.dev/vuln/GO-2020-0010
www.openwall.com/lists/oss-security/2016/11/03/1

Code Behaviors & Features

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