Medium
Security advisory
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.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2017-8932
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 09:58 UTC · Revision 1
Source evidence
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.
osv:CVE-2017-8932
Complete source record
{
"id": "4b5a1ae61419fe2a8656200dd1950ec6ca3ee63f2ba941478519d5d7770e1136",
"url": "https://osv.dev/vulnerability/CVE-2017-8932",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2017-8932",
"summary": "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.",
"evidence": "osv:CVE-2017-8932",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2017-8932",
"aliases": [
"CVE-2017-8932",
"GO-2022-0187"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/golang/go",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"last_affected": "753452fac6f6963b5a6e38a239b05362385a3842"
},
{
"introduced": "cd6b6202dd1559b3ac63179b45f1833fcfbe7eca"
},
{
"last_affected": "a4c18f063b6659079ca2848ca217a0587dabc001"
},
{
"fixed": "9294fa2749ffee7edbbb817a0ef9fe633136fa9c"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:golang:go:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"last_affected": "1.7.5"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:golang:go:1.8:*:*:*:*:*:*:*",
"range": [
{
"introduced": "1.8"
},
{
"last_affected": "1.8"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:golang:go:1.8.1:*:*:*:*:*:*:*",
"range": [
{
"introduced": "1.8.1"
},
{
"last_affected": "1.8.1"
}
],
"source": "CPE_STRING"
},
{
"range": [
{
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}
],
"source": "REFERENCES_COMMIT"
}
]
}
}
],
"versions": [
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"go1.7.5",
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"go1.8",
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"go1.7.3",
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"go1.7.1",
"go1.7",
"go1.7rc6",
"go1.7rc5",
"go1.7rc4",
"go1.7rc3",
"go1.7rc2",
"go1.7rc1",
"go1.7beta2",
"go1.7beta1",
"go1.6beta2",
"go1.6beta1",
"go1.5beta3",
"go1.5beta2",
"go1.5beta1",
"go1.4beta1",
"go1.3beta2",
"go1.3beta1",
"weekly.2012-03-27",
"weekly",
"weekly.2012-03-22",
"weekly.2012-03-13",
"weekly.2012-03-04",
"weekly.2012-02-22",
"weekly.2012-02-14",
"weekly.2012-02-07",
"weekly.2012-01-27",
"weekly.2012-01-20",
"weekly.2012-01-15",
"weekly.2011-12-22",
"weekly.2011-12-14",
"weekly.2011-12-06",
"weekly.2011-12-02",
"weekly.2011-12-01",
"weekly.2011-11-18",
"weekly.2011-11-09",
"weekly.2011-11-08",
"weekly.2011-11-02",
"weekly.2011-11-01",
"weekly.2011-10-26",
"weekly.2011-10-25",
"weekly.2011-10-18",
"weekly.2011-10-06",
"weekly.2011-09-21",
"weekly.2011-09-16",
"weekly.2011-08-17",
"weekly.2011-09-07",
"weekly.2011-09-01",
"weekly.2011-08-10",
"weekly.2011-07-07",
"weekly.2011-07-29",
"weekly.2011-07-19",
"weekly.2011-06-09",
"weekly.2011-06-23",
"weekly.2011-06-16",
"weekly.2011-06-02",
"weekly.2011-05-22",
"weekly.2011-04-27",
"weekly.2011-04-13",
"weekly.2011-04-04",
"weekly.2011-03-28",
"weekly.2011-03-15",
"weekly.2011-03-07.1",
"release.r56",
"weekly.2011-03-07",
"weekly.2011-02-24",
"weekly.2011-02-15",
"weekly.2011-02-01.1",
"weekly.2011-02-01",
"weekly.2011-01-20",
"weekly.2011-01-19",
"weekly.2011-01-12",
"weekly.2011-01-06",
"weekly.2010-12-22",
"weekly.2010-12-15.1",
"weekly.2010-12-15",
"weekly.2010-12-08",
"weekly.2010-12-02",
"weekly.2010-11-23",
"weekly.2010-11-10",
"weekly.2010-11-02",
"weekly.2010-10-27",
"weekly.2010-10-20",
"weekly.2010-10-13.1",
"weekly.2010-10-13",
"weekly.2010-09-29",
"weekly.2010-09-22",
"weekly.2010-09-15",
"weekly.2010-09-06",
"weekly.2010-08-25",
"weekly.2010-08-11",
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"weekly.2010-06-21",
"weekly.2010-06-09",
"weekly.2010-05-27",
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"weekly.2010-01-13",
"weekly.2010-01-05",
"weekly.2009-12-22",
"weekly.2009-12-09",
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"weekly.2009-11-12",
"weekly.2009-11-10.1",
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"weekly.2009-11-06"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-8932.json"
}
}
],
"modified": "2026-10-20T10:49:34.681246657Z",
"provider": "osv",
"references": [
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LZH4T47ROLZ6YEZBDVXVS2KISTDMXAPS/",
"https://access.redhat.com/errata/RHSA-2017:1859",
"https://github.com/golang/go/issues/20040",
"https://go-review.googlesource.com/c/41070/",
"https://groups.google.com/d/msg/golang-announce/B5ww0iFt1_Q/TgUFJV14BgAJ",
"https://bugzilla.redhat.com/show_bug.cgi?id=1455191",
"https://github.com/golang/go/commit/9294fa2749ffee7edbbb817a0ef9fe633136fa9c"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:o:fedoraproject:fedora:25:*:*:*:*:*:*:*"
],
"vendor_product": "fedoraproject:fedora",
"extracted_events": [
{
"range": [
{
"introduced": "25"
},
{
"last_affected": "25"
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],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:a:novell:suse_package_hub_for_suse_linux_enterprise:12:*:*:*:*:*:*:*"
],
"vendor_product": "novell:suse_package_hub_for_suse_linux_enterprise",
"extracted_events": [
{
"range": [
{
"introduced": "12"
},
{
"last_affected": "12"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:opensuse:leap:42.2:*:*:*:*:*:*:*"
],
"vendor_product": "opensuse:leap",
"extracted_events": [
{
"range": [
{
"introduced": "42.2"
},
{
"last_affected": "42.2"
}
],
"source": "CPE_STRING"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2017-8932",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 380576,
"published_at": "2017-07-06T16:29:00.42+00:00"
}