CVE-2017-8932 Detail

Current 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.


View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score:  5.9 MEDIUM
Vector:  CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N


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Note: NVD Analysts have published a CVSS score for this CVE based on publicly available information at the time of analysis. The CNA has not provided a score within the CVE List.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://lists.opensuse.org/opensuse-updates/2017-06/msg00079.html Patch  Third Party Advisory 
http://lists.opensuse.org/opensuse-updates/2017-06/msg00080.html Patch  Third Party Advisory 
https://access.redhat.com/errata/RHSA-2017:1859
https://bugzilla.redhat.com/show_bug.cgi?id=1455191 Issue Tracking  Third Party Advisory 
https://github.com/golang/go/commit/9294fa2749ffee7edbbb817a0ef9fe633136fa9c Issue Tracking  Patch  Third Party Advisory 
https://github.com/golang/go/issues/20040 Third Party Advisory 
https://go-review.googlesource.com/c/41070/ Vendor Advisory 
https://groups.google.com/d/msg/golang-announce/B5ww0iFt1_Q/TgUFJV14BgAJ Vendor Advisory 
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LZH4T47ROLZ6YEZBDVXVS2KISTDMXAPS/ Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-682 Incorrect Calculation cwe source acceptance level NIST  

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Change History

4 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2017-8932
NVD Published Date:
07/06/2017
NVD Last Modified:
10/02/2019
Source:
MITRE