Critical
Security advisory
RubyGems versions between 2.0.0 and 2.6.13 are vulnerable to a possible remote code execution vulnerability. YAML deserialization of gem specifications can bypass class white lists. Specially crafted serialized objects can possibly be used to escalate to remote code execution.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2017-0903
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 09:50 UTC · Revision 1
Source evidence
RubyGems versions between 2.0.0 and 2.6.13 are vulnerable to a possible remote code execution vulnerability. YAML deserialization of gem specifications can bypass class white lists. Specially crafted serialized objects can possibly be used to escalate to remote code execution.
osv:CVE-2017-0903
Complete source record
{
"id": "359de79c0a5bb6d4ca866d44a951b7c249fc957e83b7529ee634c195e8eae071",
"url": "https://osv.dev/vulnerability/CVE-2017-0903",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2017-0903",
"summary": "RubyGems versions between 2.0.0 and 2.6.13 are vulnerable to a possible remote code execution vulnerability. YAML deserialization of gem specifications can bypass class white lists. Specially crafted serialized objects can possibly be used to escalate to remote code execution.",
"evidence": "osv:CVE-2017-0903",
"products": [],
"severity": "critical",
"structured": {
"id": "CVE-2017-0903",
"aliases": [
"CVE-2017-0903",
"GHSA-mqwr-4qf2-2hcv"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/ruby/rubygems",
"type": "GIT",
"events": [
{
"introduced": "8241846143b57f72c75ecc50d113dd41c8c6a226"
},
{
"last_affected": "6e77ace5dad07d86a38ac271e6a62658ca751105"
},
{
"fixed": "510b1638ac9bba3ceb7a5d73135dafff9e5bab49"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:rubygems:rubygems:2.0.0:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.0.0"
},
{
"last_affected": "2.0.0"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:rubygems:rubygems:2.0.0:preview2:*:*:*:*:*:*",
"range": [
{
"introduced": "2.0.0-preview2"
},
{
"last_affected": "2.0.0-preview2"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:rubygems:rubygems:2.0.0:preview2.1:*:*:*:*:*:*",
"range": [
{
"introduced": "2.0.0-preview2\\.1"
},
{
"last_affected": "2.0.0-preview2\\.1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:rubygems:rubygems:2.0.0:preview2.2:*:*:*:*:*:*",
"range": [
{
"introduced": "2.0.0-preview2\\.2"
},
{
"last_affected": "2.0.0-preview2\\.2"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:rubygems:rubygems:2.0.1:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.0.1"
},
{
"last_affected": "2.0.1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:rubygems:rubygems:2.0.2:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.0.2"
},
{
"last_affected": "2.0.2"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:rubygems:rubygems:2.0.3:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.0.3"
},
{
"last_affected": "2.0.3"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:rubygems:rubygems:2.0.4:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.0.4"
},
{
"last_affected": "2.0.4"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:rubygems:rubygems:2.0.5:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.0.5"
},
{
"last_affected": "2.0.5"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:rubygems:rubygems:2.0.6:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.0.6"
},
{
"last_affected": "2.0.6"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:rubygems:rubygems:2.0.7:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.0.7"
},
{
"last_affected": "2.0.7"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:rubygems:rubygems:2.0.8:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.0.8"
},
{
"last_affected": "2.0.8"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:rubygems:rubygems:2.0.9:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.0.9"
},
{
"last_affected": "2.0.9"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:rubygems:rubygems:2.0.10:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.0.10"
},
{
"last_affected": "2.0.10"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:rubygems:rubygems:2.0.11:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.0.11"
},
{
"last_affected": "2.0.11"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:rubygems:rubygems:2.0.12:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.0.12"
},
{
"last_affected": "2.0.12"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:rubygems:rubygems:2.0.13:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.0.13"
},
{
"last_affected": "2.0.13"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:rubygems:rubygems:2.0.14:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.0.14"
},
{
"last_affected": "2.0.14"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:rubygems:rubygems:2.0.15:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.0.15"
},
{
"last_affected": "2.0.15"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:rubygems:rubygems:2.0.16:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.0.16"
},
{
"last_affected": "2.0.16"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:rubygems:rubygems:2.0.17:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.0.17"
},
{
"last_affected": "2.0.17"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:rubygems:rubygems:2.1.0:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.1.0"
},
{
"last_affected": "2.1.0"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:rubygems:rubygems:2.1.0.rc.1:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.1.0.rc.1"
},
{
"last_affected": "2.1.0.rc.1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:rubygems:rubygems:2.1.0.rc.2:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.1.0.rc.2"
},
{
"last_affected": "2.1.0.rc.2"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:rubygems:rubygems:2.1.1:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.1.1"
},
{
"last_affected": "2.1.1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:rubygems:rubygems:2.1.2:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.1.2"
},
{
"last_affected": "2.1.2"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:rubygems:rubygems:2.1.3:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.1.3"
},
{
"last_affected": "2.1.3"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:rubygems:rubygems:2.1.4:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.1.4"
},
{
"last_affected": "2.1.4"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:rubygems:rubygems:2.1.5:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.1.5"
},
{
"last_affected": "2.1.5"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:rubygems:rubygems:2.1.6:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.1.6"
},
{
"last_affected": "2.1.6"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:rubygems:rubygems:2.1.7:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.1.7"
},
{
"last_affected": "2.1.7"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:rubygems:rubygems:2.1.8:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.1.8"
},
{
"last_affected": "2.1.8"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:rubygems:rubygems:2.1.9:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.1.9"
},
{
"last_affected": "2.1.9"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:rubygems:rubygems:2.1.10:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.1.10"
},
{
"last_affected": "2.1.10"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:rubygems:rubygems:2.1.11:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.1.11"
},
{
"last_affected": "2.1.11"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:rubygems:rubygems:2.2.0:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.2.0"
},
{
"last_affected": "2.2.0"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:rubygems:rubygems:2.2.0.rc.1:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.2.0.rc.1"
},
{
"last_affected": "2.2.0.rc.1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:rubygems:rubygems:2.2.1:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.2.1"
},
{
"last_affected": "2.2.1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:rubygems:rubygems:2.2.2:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.2.2"
},
{
"last_affected": "2.2.2"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:rubygems:rubygems:2.2.3:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.2.3"
},
{
"last_affected": "2.2.3"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:rubygems:rubygems:2.2.4:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.2.4"
},
{
"last_affected": "2.2.4"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:rubygems:rubygems:2.2.5:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.2.5"
},
{
"last_affected": "2.2.5"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:rubygems:rubygems:2.3.0:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.3.0"
},
{
"last_affected": "2.3.0"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:rubygems:rubygems:2.4.0:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.4.0"
},
{
"last_affected": "2.4.0"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:rubygems:rubygems:2.4.1:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.4.1"
},
{
"last_affected": "2.4.1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:rubygems:rubygems:2.4.2:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.4.2"
},
{
"last_affected": "2.4.2"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:rubygems:rubygems:2.4.3:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.4.3"
},
{
"last_affected": "2.4.3"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:rubygems:rubygems:2.4.4:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.4.4"
},
{
"last_affected": "2.4.4"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:rubygems:rubygems:2.4.5:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.4.5"
},
{
"last_affected": "2.4.5"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:rubygems:rubygems:2.4.6:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.4.6"
},
{
"last_affected": "2.4.6"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:rubygems:rubygems:2.4.7:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.4.7"
},
{
"last_affected": "2.4.7"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:rubygems:rubygems:2.4.8:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.4.8"
},
{
"last_affected": "2.4.8"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:rubygems:rubygems:2.5.0:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.5.0"
},
{
"last_affected": "2.5.0"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:rubygems:rubygems:2.5.1:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.5.1"
},
{
"last_affected": "2.5.1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:rubygems:rubygems:2.5.2:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.5.2"
},
{
"last_affected": "2.5.2"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:rubygems:rubygems:2.6.0:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.6.0"
},
{
"last_affected": "2.6.0"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:rubygems:rubygems:2.6.1:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.6.1"
},
{
"last_affected": "2.6.1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:rubygems:rubygems:2.6.2:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.6.2"
},
{
"last_affected": "2.6.2"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:rubygems:rubygems:2.6.3:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.6.3"
},
{
"last_affected": "2.6.3"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:rubygems:rubygems:2.6.4:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.6.4"
},
{
"last_affected": "2.6.4"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:rubygems:rubygems:2.6.5:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.6.5"
},
{
"last_affected": "2.6.5"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:rubygems:rubygems:2.6.6:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.6.6"
},
{
"last_affected": "2.6.6"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:rubygems:rubygems:2.6.7:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.6.7"
},
{
"last_affected": "2.6.7"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:rubygems:rubygems:2.6.8:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.6.8"
},
{
"last_affected": "2.6.8"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:rubygems:rubygems:2.6.9:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.6.9"
},
{
"last_affected": "2.6.9"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:rubygems:rubygems:2.6.10:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.6.10"
},
{
"last_affected": "2.6.10"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:rubygems:rubygems:2.6.11:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.6.11"
},
{
"last_affected": "2.6.11"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:rubygems:rubygems:2.6.12:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.6.12"
},
{
"last_affected": "2.6.12"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:rubygems:rubygems:2.6.13:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.6.13"
},
{
"last_affected": "2.6.13"
}
],
"source": "CPE_STRING"
},
{
"range": [
{
"fixed": "510b1638ac9bba3ceb7a5d73135dafff9e5bab49"
}
],
"source": "REFERENCES_COMMIT"
}
]
}
}
],
"versions": [
"2.0.0",
"2.0.0-preview2",
"2.0.0-preview2\\.1",
"2.0.0-preview2\\.2",
"2.0.1",
"2.0.10",
"2.0.11",
"2.0.12",
"2.0.13",
"2.0.14",
"2.0.15",
"2.0.16",
"2.0.17",
"2.0.2",
"2.0.3",
"2.0.4",
"2.0.5",
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],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-0903.json"
}
}
],
"modified": "2026-10-20T10:48:06.235654122Z",
"provider": "osv",
"references": [
"https://access.redhat.com/errata/RHSA-2017:3485",
"https://access.redhat.com/errata/RHSA-2018:0378",
"https://access.redhat.com/errata/RHSA-2018:0583",
"https://access.redhat.com/errata/RHSA-2018:0585",
"https://hackerone.com/reports/274990",
"https://lists.debian.org/debian-lts-announce/2018/07/msg00012.html",
"https://usn.ubuntu.com/3553-1/",
"https://usn.ubuntu.com/3685-1/",
"https://www.debian.org/security/2017/dsa-4031",
"https://github.com/rubygems/rubygems/commit/510b1638ac9bba3ceb7a5d73135dafff9e5bab49"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*",
"cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*",
"cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:*"
],
"vendor_product": "canonical:ubuntu_linux",
"extracted_events": [
{
"range": [
{
"introduced": "14.04"
},
{
"last_affected": "14.04"
},
{
"introduced": "16.04"
},
{
"last_affected": "16.04"
},
{
"introduced": "17.10"
},
{
"last_affected": "17.10"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
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"cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
],
"vendor_product": "debian:debian_linux",
"extracted_events": [
{
"range": [
{
"introduced": "8.0"
},
{
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},
{
"introduced": "9.0"
},
{
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}
],
"source": "CPE_STRING"
}
]
},
{
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],
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{
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}
],
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}
]
},
{
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],
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},
{
"last_affected": "7.0"
}
],
"source": "CPE_STRING"
}
]
},
{
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"cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:*"
],
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{
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"introduced": "7.4"
},
{
"last_affected": "7.4"
},
{
"introduced": "7.6"
},
{
"last_affected": "7.6"
}
],
"source": "CPE_STRING"
}
]
},
{
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"cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:*:*:*:*:*:*:*"
],
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{
"introduced": "7.4"
},
{
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},
{
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},
{
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},
{
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{
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}
],
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}
]
},
{
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],
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{
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{
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}
],
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}
]
},
{
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],
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}
],
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}
]
},
{
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"cpe:2.3:a:rubygems:rubygems:2.0.0:rc2:*:*:*:*:*:*",
"cpe:2.3:a:rubygems:rubygems:2.2.0.preiew.1:*:*:*:*:*:*:*"
],
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{
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{
"introduced": "2.0.0-rc1"
},
{
"last_affected": "2.0.0-rc1"
},
{
"introduced": "2.0.0-rc2"
},
{
"last_affected": "2.0.0-rc2"
},
{
"introduced": "2.2.0.preiew.1"
},
{
"last_affected": "2.2.0.preiew.1"
}
],
"source": "CPE_STRING"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2017-0903",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 380041,
"published_at": "2017-10-11T18:29:00.583+00:00"
}