Home/CVE/A bug in the standard library ScalarMult implementation of curve P-256 for amd64 architectures in Go before 1.7.6 and 1.
CVE

CVE-2017-8932

A bug in the standard library ScalarMult implementation of curve P-256 for amd64 architectures in Go before 1.7.6 and 1.

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.

MEDIUM · CVSS 5.9 EPSS 0.01477
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-682Incorrect Calculation
▤

Affected Products & Versions

5
golang go<= 1.7.5
golang goall versions
novell suse package hub for suse linux enterpriseall versions
fedoraproject fedoraall versions
opensuse leapall versions
▤

Affected Packages

1
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
Go stdlib fixed in 1.7.6, 1.8.2
▣

Scoring & Timeline

5.9
MEDIUM · CVSS v3.0 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD06 Jul 2017 · 04:29 PM
CVSS VectorCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
⚑

Vendor Advisories

9
suse-csafopenSUSE-SU-2024:10802-1
suse-csafopenSUSE-SU-2024:10803-1
suse-csafopenSUSE-SU-2024:10804-1
suse-csafopenSUSE-SU-2024:10805-1
suse-csafopenSUSE-SU-2024:10812-1
🔗

References & Sources

8
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://lists.opensuse.org/opensuse-updates/2017-06/msg00079.htmlPatchThird Party Advisory
http://lists.opensuse.org/opensuse-updates/2017-06/msg00080.htmlPatchThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1455191Issue TrackingThird Party Advisory
https://github.com/golang/go/commit/9294fa2749ffee7edbbb817a0ef9fe633136fa9cIssue TrackingPatchThird Party Advisory
https://github.com/golang/go/issues/20040Third Party Advisory
https://go-review.googlesource.com/c/41070/Vendor Advisory
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