CVE-2017-8932

Name: CVE-2017-8932
Creator: NVD / NIST
Published: 2017-07-06T16:29:00.42+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 2.23%

Last modified Jun 17, 2026

CVE-2017-8932 is a vulnerability of currently unknown severity. A bug in the standard library ScalarMult implementation of curve P-256 for amd64 architectures in Go before 1.7.6 and 1.8.x before 1.8.2 causes incorrect results to be generated for specific input points. An adaptive attack can be mounted to progressively extract the scalar input to ScalarMult by submitting crafted points and observing failures to the derive correct output. EPSS estimates a 2.23% chance of exploitation in the next 30 days.

Description

A bug in the standard library ScalarMult implementation of curve P-256 for amd64 architectures in Go before 1.7.6 and 1.8.x before 1.8.2 causes incorrect results to be generated for specific input points. An adaptive attack can be mounted to progressively extract the scalar input to ScalarMult by submitting crafted points and observing failures to the derive correct output. This leads to a full key recovery attack against static ECDH, as used in popular JWT libraries.

Metrics

EPSS Probability

2.23%

80.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-682

Affected Software

Vendor	Product	Versions
Golang	Go	<= 1.7.5
Golang	Go	1.8
Golang	Go	1.8.1
Novell	Suse Package Hub For Suse Linux Enterprise	12
Fedoraproject	Fedora	25
Opensuse	Leap	42.2

References

http://lists.opensuse.org/opensuse-updates/2017-06/msg00079.htmlPatch, Third Party Advisory
http://lists.opensuse.org/opensuse-updates/2017-06/msg00080.htmlPatch, Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:1859
https://bugzilla.redhat.com/show_bug.cgi?id=1455191Issue Tracking, Third Party Advisory
https://github.com/golang/go/commit/9294fa2749ffee7edbbb817a0ef9fe633136fa9cIssue Tracking, Patch, Third Party Advisory
https://github.com/golang/go/issues/20040Third Party Advisory
https://go-review.googlesource.com/c/41070/Vendor Advisory
https://groups.google.com/d/msg/golang-announce/B5ww0iFt1_Q/TgUFJV14BgAJVendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LZH4T47ROLZ6YEZBDVXVS2KISTDMXAPS/
http://lists.opensuse.org/opensuse-updates/2017-06/msg00079.htmlPatch, Third Party Advisory
http://lists.opensuse.org/opensuse-updates/2017-06/msg00080.htmlPatch, Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:1859
https://bugzilla.redhat.com/show_bug.cgi?id=1455191Issue Tracking, Third Party Advisory
https://github.com/golang/go/commit/9294fa2749ffee7edbbb817a0ef9fe633136fa9cIssue Tracking, Patch, Third Party Advisory
https://github.com/golang/go/issues/20040Third Party Advisory
https://go-review.googlesource.com/c/41070/Vendor Advisory
https://groups.google.com/d/msg/golang-announce/B5ww0iFt1_Q/TgUFJV14BgAJVendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LZH4T47ROLZ6YEZBDVXVS2KISTDMXAPS/

Timeline

Published: Jul 6, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-8932?

How severe is CVE-2017-8932?

Severity scoring for CVE-2017-8932 is pending analysis. The EPSS model estimates a 2.23% probability of exploitation in the next 30 days.

How do I fix CVE-2017-8932?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-8932?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST