Related Vulnerabilities: CVE-2019-6486  

Go before versions 1.10.8 and 1.11.5 has a vulnerability in the crypto/elliptic implementations of the P-521 and P-384 elliptic curves. A remote attacker can exploit this by crafting inputs that consume excessive amounts of CPU. These inputs might be delivered via TLS handshakes, X.509 certificates, JWT tokens, ECDH shares or ECDSA signatures. In some cases, if an ECDH private key is reused more than once, the attack can also lead to key recovery.

Severity Medium

Remote Yes

Type Private key recovery

Description

Go before versions 1.10.8 and 1.11.5 has a vulnerability in the crypto/elliptic implementations of the P-521 and P-384 elliptic curves. A remote attacker can exploit this by crafting inputs that consume excessive amounts of CPU. These inputs might be delivered via TLS handshakes, X.509 certificates, JWT tokens, ECDH shares or ECDSA signatures. In some cases, if an ECDH private key is reused more than once, the attack can also lead to key recovery.

AVG-859 go, go-pie 2:1.11.4-1 2:1.11.5-1 Medium Fixed

24 Jan 2019 ASA-201901-11 AVG-859 go Medium private key recovery

24 Jan 2019 ASA-201901-10 AVG-859 go-pie Medium private key recovery

https://groups.google.com/forum/m/#!topic/golang-announce/mVeX35iXuSw
https://github.com/golang/go/issues/29903
https://github.com/golang/go/commit/42b42f71