Critical
Security advisory
In Eclipse OpenJ9, prior to the 0.12.0 release, the jio_snprintf() and jio_vsnprintf() native methods ignored the length parameter. This affects existing APIs that called the functions to exceed the allocated buffer. This functions were not directly callable by non-native user code.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2018-12547
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 05:45 UTC · Revision 1
Source evidence
In Eclipse OpenJ9, prior to the 0.12.0 release, the jio_snprintf() and jio_vsnprintf() native methods ignored the length parameter. This affects existing APIs that called the functions to exceed the allocated buffer. This functions were not directly callable by non-native user code.
osv:CVE-2018-12547
Complete source record
{
"id": "e4e5700d5af869e20cc3e3c8abebbd10e4682643469d51d5f9e11e4a902a8019",
"url": "https://osv.dev/vulnerability/CVE-2018-12547",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2018-12547",
"summary": "In Eclipse OpenJ9, prior to the 0.12.0 release, the jio_snprintf() and jio_vsnprintf() native methods ignored the length parameter. This affects existing APIs that called the functions to exceed the allocated buffer. This functions were not directly callable by non-native user code.",
"evidence": "osv:CVE-2018-12547",
"products": [],
"severity": "critical",
"structured": {
"id": "CVE-2018-12547",
"aliases": [
"CVE-2018-12547"
],
"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/eclipse-openj9/openj9",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "04890c30076872e4c5286727d4d63473c41674e8"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:eclipse:openj9:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "0.12.0"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"versions": [
"openj9-0.12.0-rc1",
"openj9-0.12.0-m2",
"openj9-0.12.0-m1",
"openj9-0.11.0-rc2",
"openj9-0.11.0",
"openj9-0.11.0-rc1",
"openj9-0.10.0-rc1",
"openj9-0.9.0-rc1",
"openj9-0.8.0-rc2",
"openj9-0.8.0",
"openj9-0.8.0-rc1",
"openj9-0.0RC2",
"openj9-0.0",
"openj9-0.0M1"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-12547.json"
}
}
],
"modified": "2026-10-24T10:30:33.031427617Z",
"provider": "osv",
"references": [
"https://access.redhat.com/errata/RHSA-2019:0469",
"https://access.redhat.com/errata/RHSA-2019:0472",
"https://access.redhat.com/errata/RHSA-2019:0473",
"https://access.redhat.com/errata/RHSA-2019:0474",
"https://access.redhat.com/errata/RHSA-2019:0640",
"https://access.redhat.com/errata/RHSA-2019:1238",
"https://bugs.eclipse.org/bugs/show_bug.cgi?id=543659"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*",
"cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*"
],
"vendor_product": "redhat:enterprise_linux_desktop",
"extracted_events": [
{
"range": [
{
"introduced": "6.0"
},
{
"last_affected": "6.0"
},
{
"introduced": "7.0"
},
{
"last_affected": "7.0"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*",
"cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*"
],
"vendor_product": "redhat:enterprise_linux_server",
"extracted_events": [
{
"range": [
{
"introduced": "6.0"
},
{
"last_affected": "6.0"
},
{
"introduced": "7.0"
},
{
"last_affected": "7.0"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*",
"cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*"
],
"vendor_product": "redhat:enterprise_linux_workstation",
"extracted_events": [
{
"range": [
{
"introduced": "6.0"
},
{
"last_affected": "6.0"
},
{
"introduced": "7.0"
},
{
"last_affected": "7.0"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:a:redhat:satellite:5.8:*:*:*:*:*:*:*"
],
"vendor_product": "redhat:satellite",
"extracted_events": [
{
"range": [
{
"introduced": "5.8"
},
{
"last_affected": "5.8"
}
],
"source": "CPE_STRING"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2018-12547",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 433160,
"published_at": "2019-02-11T15:29:00.66+00:00"
}