Medium
Security advisory
In PHP versions 7.2.x below 7.2.26, 7.3.x below 7.3.13 and 7.4.0, PHP bcmath extension functions on some systems, including Windows, can be tricked into reading beyond the allocated space by supplying it with string containing characters that are identified as numeric by the OS but aren't ASCII numbers. This can read to disclosure of the content of some memory locations.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2019-11046
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 08:03 UTC · Revision 1
Source evidence
In PHP versions 7.2.x below 7.2.26, 7.3.x below 7.3.13 and 7.4.0, PHP bcmath extension functions on some systems, including Windows, can be tricked into reading beyond the allocated space by supplying it with string containing characters that are identified as numeric by the OS but aren't ASCII numbers. This can read to disclosure of the content of some memory locations.
osv:CVE-2019-11046
Complete source record
{
"id": "9c2b865becb067406da21236b3b3fb88f8b26ff2b927b59fc0099de62800c376",
"url": "https://osv.dev/vulnerability/CVE-2019-11046",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2019-11046",
"summary": "In PHP versions 7.2.x below 7.2.26, 7.3.x below 7.3.13 and 7.4.0, PHP bcmath extension functions on some systems, including Windows, can be tricked into reading beyond the allocated space by supplying it with string containing characters that are identified as numeric by the OS but aren't ASCII numbers. This can read to disclosure of the content of some memory locations.",
"evidence": "osv:CVE-2019-11046",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2019-11046",
"aliases": [
"CVE-2019-11046"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/php/php-src",
"type": "GIT",
"events": [
{
"introduced": "8148cbb78841c8ec0759c0836e7f35dec799d300"
},
{
"last_affected": "1df155af14c3b7473b628574eb46a7ce11caadfd"
},
{
"introduced": "52ace952a1b65ca80fc2617f11c2fa6dd03f51bd"
},
{
"last_affected": "a1457cf8b8b82516bf9561eb43972b63074fa9ae"
},
{
"introduced": "3c7824e16ec4c3cee417262445d2c2b66531c10f"
},
{
"last_affected": "3c7824e16ec4c3cee417262445d2c2b66531c10f"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "7.2.0"
},
{
"last_affected": "7.2.26"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "7.3.0"
},
{
"last_affected": "7.3.13"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:php:php:7.4.0:*:*:*:*:*:*:*",
"range": [
{
"introduced": "7.4.0"
},
{
"last_affected": "7.4.0"
}
],
"source": "CPE_STRING"
}
]
}
}
],
"versions": [
"7.4.0",
"php-7.4.0"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-11046.json"
}
}
],
"modified": "2026-10-24T10:31:02.164323201Z",
"provider": "osv",
"references": [
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/N7GCOAE6KVHYJ3UQ4KLPLTGSLX6IRVRN/",
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XWRQPYXVG43Q7DXMXH6UVWMKWGUW552F/",
"https://support.f5.com/csp/article/K48866433?utm_source=f5support&%3Butm_medium=RSS",
"https://lists.debian.org/debian-lts-announce/2019/12/msg00034.html",
"https://seclists.org/bugtraq/2020/Feb/27",
"https://seclists.org/bugtraq/2020/Feb/31",
"https://seclists.org/bugtraq/2021/Jan/3",
"https://security.netapp.com/advisory/ntap-20200103-0002/",
"https://usn.ubuntu.com/4239-1/",
"https://www.debian.org/security/2020/dsa-4626",
"https://www.debian.org/security/2020/dsa-4628",
"https://www.tenable.com/security/tns-2021-14",
"https://bugs.php.net/bug.php?id=78878"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:a:tenable:security_center:*:*:*:*:*:*:*:*"
],
"vendor_product": "tenable:security_center",
"extracted_events": [
{
"range": [
{
"fixed": "5.19.0"
}
],
"source": "CPE_RANGE"
}
]
},
{
"cpes": [
"cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:-:*:*:*",
"cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*",
"cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*",
"cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*",
"cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:*",
"cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*"
],
"vendor_product": "canonical:ubuntu_linux",
"extracted_events": [
{
"range": [
{
"introduced": "12.04"
},
{
"last_affected": "12.04"
},
{
"introduced": "14.04"
},
{
"last_affected": "14.04"
},
{
"introduced": "16.04"
},
{
"last_affected": "16.04"
},
{
"introduced": "18.04"
},
{
"last_affected": "18.04"
},
{
"introduced": "19.04"
},
{
"last_affected": "19.04"
},
{
"introduced": "19.10"
},
{
"last_affected": "19.10"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
"cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",
"cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
],
"vendor_product": "debian:debian_linux",
"extracted_events": [
{
"range": [
{
"introduced": "8.0"
},
{
"last_affected": "8.0"
},
{
"introduced": "9.0"
},
{
"last_affected": "9.0"
},
{
"introduced": "10.0"
},
{
"last_affected": "10.0"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*",
"cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*"
],
"vendor_product": "fedoraproject:fedora",
"extracted_events": [
{
"range": [
{
"introduced": "30"
},
{
"last_affected": "30"
},
{
"introduced": "31"
},
{
"last_affected": "31"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*"
],
"vendor_product": "opensuse:leap",
"extracted_events": [
{
"range": [
{
"introduced": "15.1"
},
{
"last_affected": "15.1"
}
],
"source": "CPE_STRING"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2019-11046",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 439959,
"published_at": "2019-12-23T03:15:11.71+00:00"
}