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 1.8.x before 1.8.2 causes incorrect results to be generated for specific input points.
Does this matter?
Lower severity and a low EPSS score (2.23%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.0
- 5.9 MEDIUMCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 2.23% probability · 83th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-682
- Affected
- golang/go · novell/suse package hub for suse linux enterprise · fedoraproject/fedora · opensuse/leap
- Source
- cve@mitre.org
EPSS 2.2% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
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/
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.