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Incorrect Calculation Affecting golang-src package, versions <0:1.8.3-1.el7

Severity

0.0
medium
0
10

    Threat Intelligence

    EPSS
    0.45% (76th percentile)

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  • Snyk ID SNYK-RHEL7-GOLANGSRC-4762983
  • published 26 Jul 2021
  • disclosed 23 May 2017
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Introduced: 23 May 2017

CVE-2017-8932 Open this link in a new tab
CWE-682 Open this link in a new tab

How to fix?

Upgrade RHEL:7 golang-src to version 0:1.8.3-1.el7 or higher.
This issue was patched in RHSA-2017:1859.

NVD Description

Note: Versions mentioned in the description apply only to the upstream golang-src package and not the golang-src package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

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.

CVSS Scores

version 3.1
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Snyk

4.8 medium
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    High
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    Low
  • Integrity (I)
    Low
  • Availability (A)
    None
Expand this section

NVD

5.9 medium
Expand this section

Red Hat

4.8 medium