CVE-2016-9121

Description

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.

Category

9.1
CVSS
Severity: Critical
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.51%
Third-Party Advisory openwall.com Third-Party Advisory github.com
Affected: n/a Go JOSE All versions before 1.0.4
Published at:
Updated at:

References

Link Tags
https://github.com/square/go-jose/commit/c7581939a3656bb65e89d64da0a52364a33d2507 issue tracking third party advisory patch
https://hackerone.com/reports/164590 permissions required
http://www.openwall.com/lists/oss-security/2016/11/03/1 mailing list third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2016-9121?
CVE-2016-9121 has been scored as a critical severity vulnerability.
How to fix CVE-2016-9121?
To fix CVE-2016-9121, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2016-9121 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2016-9121 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2016-9121?
CVE-2016-9121 affects n/a Go JOSE All versions before 1.0.4.
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